Prof JW Odendaal (Wimpie)

Position

Professor

Qualifications

B.Eng (cum laude)(Pret), M.Eng(cum laude)(Pret), Ph.D(Pret)

Professional status

Registered Professional Engineer

Memberships

Senior member of the Institute of Electrical and Electronic Engineers (SMIEEE)
Senior member of the South African Institute of Electrical Engineers (SAIEE)
Member of the Antenna Measurement Techniques Association (AMTA) 

Teaching

Undergraduate

Electromagnetism EMZ310
Antennas and Microwaves EMZ320
Design and Manufacturing EOV320

Postgraduate

Antenna Theory EMA780 
Microwave Theory EMM780

Research Topics

Electromagnetic radiation/scattering and measurements (Compact Range)
Novel antenna elements for arrays and array synthesis
Traceable antenna/RCS calibrations employing numerical electromagnetism

Research

Postgraduate students

Masters students

EM Romanowska 
On the use of time-domain gating techniques for electromagnetic scattering measurements in a compact range 
MEng degree awarded
September 1995

G Mayhew-Ridgers 
Accuracy of the Gain Transfer Method for Aperture Antenna Gain Measurements 
MEng degree awarded
September 1998

P Niemand 
The Characterization of Electromagnetic Absorber Material in a Free Space Facility 
MEng degree awarded
September 1998

DM De Haaij 
Wide band matching techniques for patch antenna elements
MEng degree awarded
September 2003

E Gerber
Design of low ripple omnidirectional waveguide antenna
MEng degree awarded 
April 2005

S Joubert 
Accurate modelling of bi-conical dipole Antennas for calibration purposes
MEng degree awarded 
April 2005

JM Steyn 
A dual-band dual-polarized antenna for WLAN applications
MEng degree awarded 
September 2009

JB du Toit 
Characterisation and phase compensation of a coplanar Waveguide to coplanar strip line balun
MEng degree awarded 
April 2010

B Jacobs 
The Effect of Manufacturing and Assembling Tolerances on the Performance of 1-18 GHz Double Ridged Guide Horn Antennas
MEng degree awarded 
April 2011

OB Jacobs 
Quad-Ridge Horn Antenna with Elliptically Shaped Sidewalls for use as a Reflector Feed for Radio Astronomy
MEng degree awarded 
April 2012

PH van der Merwe 
An optimized, dual-polarized, quad-ridged horn antenna with pyramidal sidewalls
MEng degree awarded 
September 2013

M Nel 
A Wideband Double-Ridged Guide Horn Antenna as Complex Antenna Transfer Function Standard
MEng degree awarded 
September 2013

KH Kloke
End-Launched Coaxial and Microstrip to Partial H-Plane Waveguide Adapters
MEng degree awarded 
April 2014

L Potgieter
Design of Centre-Fed Printed Rectangular Grid Slot Arrays
MEng degree awarded 
September 2015

M van Rooyen
Dual-Band Directional WLAN Antenna with High Gain
MEng degree awarded 
April 2016

C Kenny
Wideband Antenna for 4G LTE Applications
MEng degree awarded 
April 2016

RJ Moraal
Pattern Synthesis and Design of a Microstrip Wire Grid Monopulse Antenna
MEng degree awarded 
September  2017

M Roestorff
Design of an Electrically Small Wearable Antenna with a Reactive Impedance Substrate Operating at 433 MHz
MEng degree awarded 
September  2017

R Ferreira
A Compact Dual-circularly Polarized Cavity-backed Ring-slot Antenna
MEng degree awarded 
May  2018

M van den Berg
Thin Linear-to-circular Polarizers with Enhanced Bandwidth
MEng degree awarded 
May  2018

 

PhD Students

WH Theunissen
Reconfigurable contour beam antennas using an adjustable subreflector and a single feed
PhD degree awarded 
April 2000

MW da Silveira 
Analysis of spatially distributed adaptive antenna array systems in cellular networks
PhD degree awarded 
September 2004

G Mayhew-Ridgers
Development and modelling of new wideband microstrip patch antennas with capacitive feed probes
PhD degree awarded 
September 2004

P Niemand
Null Synthesis with cylindrical antenna arrays
PhD degree awarded 
April 2005

JP Jacobs
Mutual admittance between CPW-fed slots on conductor-backed two-layer substrates
PhD degree awarded 
April 2008

WP du Plessis
A Comprehensive Investigation of Retrodirective Cross-Eye Jamming 
PhD degree awarded 
April 2010

C Blaauw
RCS Simulations and Measurements of Electrically Large Complex Airframes and Dielectric Structures
PhD degree awarded 
May 2018

M Potgieter
A Study of Bistatic Simulations, Measurements and Calibration
PhD degree awarded 
May 2018

 

Publications: Peer reviewed Journals

[1] JW Odendaal and CWI Pistorius, “Horn antenna with suppressed sidelobe level”, Microwave and Optical Technology Letters, Vol. 4, No. 6, pp. 238-239, May 1991.

[2] JW Odendaal and CWI Pistorius, “E-plane analysis of a modified horn antenna with suppressed sidelobe level”, IEEE Trans. on Antennas and Propagation, Vol AP-40, pp. 620-627, June 1992.

[3] JW Odendaal and CWI Pistorius, “A method to measure the aperture field and experimentally determine the near field phase center of a horn antenna”, IEEE Trans. on Instrumentation and Measurement, Vol 42, No. 1, pp. 51-53, February 1993.

[4] JW Odendaal, E Barnard and CWI Pistorius, “Two-dimensional superresolution radar imaging using the MUSIC algorithm”, IEEE Trans. on Antennas and Propagation, Vol AP-42, pp. 1386-1391, Oct 1994.

[5] JW Odendaal, “Multi-dimensional microwave imaging”, Microwave and Optical Technology Letters, Vol. 8, No. 3, pp. 146-149, Feb 1995.

[6] A van der Merwe, JW Odendaal and EC Botha, “Two-dimensional microwave imaging using ESPRIT with matrix enhancement”, Microwave and Optical Technology Letters, Vol. 8, No. 4, pp. 218-222, Mar 1995.

[7] JW Odendaal and PA van Jaarsveld, “Parameter estimation of frequency dependent scatterers”, Microwave and Optical Technology Letters, Vol. 10, No. 2, pp. 71-74, Oct 1995.

[8] JW Odendaal “Reducing the contribution from support structures for radar cross section measurements using microwave imaging techniques”, Microwave and Optical Technology Letters, Vol. 11, No. 5, pp. 247-250, April 1996.

[9] JW Odendaal and J Joubert “Radar cross section measurements using near field radar imaging”, IEEE Trans. on Instrumentation and Measurement, Vol. 45, No. 6, pp. 948-954, December 1996.

[10] JW Odendaal, E Barnard and CWI Pistorius, “On the asymmetry in the PSD for 2-D linear prediction”, Signal Processing, Vol 60, No 1, pp 43- 49, July 1997. 

[11] P Niemand and JW Odendaal, “Radar imaging using higher order statistics”, Microwave and Optical technology Letters, Vol 16, No 1, pp 1-4, September 1997.

[12] EC Botha, JW Odendaal and KM Geggus, “Aircraft down-range profiles from simulated and compact range radar backscatter”, Microwave and Optical technology Letters, Vol 17, No 3, pp 207-213, February 1998.

[13] J Abele, J Joubert and JW Odendaal, “Introduction of multiple nulls in an otherwise omni-directional pattern of a circular dipole array” Electronics Letters, Vol 34, No 14, pp1371-1373, July 1998.

[14] P Niemand and JW Odendaal, “Characterization of surface wave radar absorbing material”, Microwave and Optical technology Letters, Vol 20, No 2, pp 131-132, January 1999.

[15] JW Odendaal and J Joubert, “Using hardware gating to improve antenna gain measurements in a compact antenna range”, Electronics Letters, vol 35, no 22, pp 1894-1896, October 1999.

[16] EC Botha and JW Odendaal, “Aerospace radar target recognition based on a ROOT-MUSIC representation”, Transactions SAIEE on Communications, Signal Processing and Information Theory, Vol 91, No 1, pp 22-27, September 2000.

[17] J Abele, J Joubert and JW Odendaal, “Introduction of multiple nulls with controllable depths in an omni-directional pattern of a circular array”, Signal Processing, Vol 80, pp 141-149, 2000.

[18] G Mayhew-Ridgers, JW Odendaal and J Joubert, “On primary wave models for pyramidal horn directivity calculations”, IEEE Trans. on Antennas and Propagation, Vol 48, No 8, pp 1246-1252, August 2000.

[19] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Horn antenna analysis as applied to the evaluation of the Gain-transfer method”, IEEE Trans. On Instrumentation and Measurement, Vol 49, No 5, pp 949-958, October 2000.

[20] JW Odendaal and D Grygier, “RCS measurements and results of an engine inlet system design optimization”, IEEE Antennas and Propagation magazine, Vol 42, No 6, pp 16 - 23, December 2000.

[21] G Mayhew-Ridgers, JW Odendaal and J Joubert, “New feeding mechanism for annular-ring microstrip antenna”, Electronics Letters, vol 36, no 7, pp 605-606, March 2000.

[22] M da Silveira, JW Odendaal and J Joubert, “Same cell co-channel interference reduction using multiple spatially distributed adaptive array systems”, Signal Processing, Vol 81, pp. 2059-2068, 2001.

[23] DM de Haaij, J Joubert and JW Odendaal, “Wideband dual-frequency stacked microstrip patch antenna”, Microwave and Optical Technology Letters, Vol 31, No 4, pp 289-292, November 2001.

[24] P Niemand, J Joubert and JW Odendaal, “Null-forming synthesis for cylindrical patch arrays”, Microwave and Optical Technology Letters, Vol 32, No 6, pp 442- 446, March 2002.

[25] JP Jacobs, J Joubert and JW Odendaal, ”Radiation efficiency and impedance bandwidth of conductor-backed CPW-fed slot dipole antenna with two-layered dielectric substrate”, Microwave and Optical Technology Letters, Vol 34, No 2, pp 138 – 141, 2002.

[26] DM de Haaij, J Joubert and JW Odendaal, “Diplexing feed network for wideband dual-frequency stacked microstrip patch antenna”, Microwave and Optical Technology Letters, Vol 36, No 2, pp 100-102, January 2003.

[27] JW Odendaal and P Niemand, “Statistical properties of radar backscatter data for imaging applications”, IEEE Trans. on Antennas and Propagation, Vol 51, No 3, pp 670-672, March 2003. 

[28] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Single-layer capacitive feed for wideband probe-fed microstrip antenna elements“, IEEE Transactions on Antennas and Propagation, Vol 51, No 6, pp 1405-1407, June 2003.

[29] JP Jacobs, J Joubert and JW Odendaal, ”Radiation efficiency and impedance bandwidth of conductor-backed CPW-fed broadside twin slot antennas on two-layer dielectric substrate”, IEE Proceedings-Microwaves, Antennas and Propagation, Vol 150, No 4, pp 185-190, Aug 2003.

[30] P Niemand, J Joubert and JW Odendaal, “Practical considerations for interference suppression using cylindrical arrays”, SAIEE Transactions, Vol 94, pp 37-39, July 2003.

[31] DM de Haaij, J Joubert and JW Odendaal, “Increasing the bandwidth of a microstrip patch antenna with a single parallel resonant circuit”, SAIEE Transactions, Vol 94, pp 25-27, July 2003.

[32] G Mayhew-Ridgers, JW Odendaal and J Joubert, ”Entire-domain versus subdomain attachment modes for the spectral-domain moment-method analysis of probe-fed microstrip patch antennas”, IEEE Transactions on Antennas and Propagation, Vol 52, No 6, pp 1616-1620, June 2004.

[33] JW Odendaal, ”Predicting the directivity of standard gain pyramidal horn antennas”, IEEE Antennas and Propagation Magazine, Vol 46, No 4, pp 93-98, August 2004.

[34] J Joubert and JW Odendaal, “Wideband Quarter-Wave patch Antenna with a Single-layer Capacitive Feed on a Finite Ground Plane” Microwave and Optical Technology Letters, Vol. 45, No 3, pp 225-227, May 2005.

[35] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Efficient Full-Wave Modelling of Patch Antenna Arrays with New Single-Layer Capacitive Feed Probes”, IEEE Transactions on Antennas and propagation. Vol. 53, No 10, pp 3219-3228, Oct. 2005.

[36] JP Jacobs, J Joubert and JW Odendaal, ”Effect of back plane distance on mutual coupling between CPW-fed slots on conductor-backed two-layer substrates“, Microwave and Optical Technology Letters, Vol. 47, No 5, pp 407-409, Dec 2005.

[37] JW Odendaal, J Joubert and MJ Prinsloo,”Extended edge wave diffraction model for near-field directivity calculations of horn antennas”, IEEE Transactions on Instrumentation and Measurement, Vol. 54, No. 6, pp 2469 – 2473, Dec 2005.

[38] J Joubert and JW Odendaal, “Analysis and design of wide-band reflector gratings in rectangular waveguide”, IEEE Transactions on Plasma Science, Vol. 34, No. 3, pp. 659-665, June 2006.

[39] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Considerations for the efficient spectral evaluation of reaction integrals associated with separated domains”, IEE Proceedings Microwaves, Antennas and Propagation, Vol. 153, No. 5, pp. 469-474, Oct. 2006.

[40] M da Silveira, JW Odendaal and J Joubert, “The Range Increase of Adaptive vs. Phased Arrays in Mobile Systems in the Presence of Interference”, South African Journal of Science, 102, pp. 609 - 612, Nov./Des. 2006.

[41] JW Odendaal, L Botha and J Joubert, “A full scale static RCS measurement facility”, South African Journal of Science, 103, pp. 196 - 199, May 2007.

[42] C Dohmen, JW Odendaal, and J Joubert, “Synthesis of conformal arrays with optimized polarization” IEEE Transactions on Antennas and propagation, Vol. 55, No. 10, pp. 2922-2925, Oct. 2007.

[43] J Joubert and JW Odendaal, “Characterization of a first-resonance CPW-fed slot as an array element”, Microwave and Optical Technology Letters, Vol. 50, No. 6, pp. 1523-1527, June 2008.

[44] J Joubert and JW Odendaal, “A 2×2 etched slot array with a corporate slotline feed network”, Electronic letters, Vol. 44, No. 14, pp. 833-834, July 2008.

[45] J Joubert and JW Odendaal, “An impedance matching design approach for a dual-band coplanar-waveguide-fed slot antenna”, Microwave and Optical Technology Letters, Vol. 50, No. 8, pp. 2031-2034, Aug. 2008.

[46] JB du Toit, JW Odendaal, and J Joubert, “Characterization and phase compensation of a coplanar waveguide to coplanar strip line balun” accepted for publication Journal of Electromagnetic Waves and Applications, volume 22, no. 17/18, page 2463-2474, 2008 .

[47] JP Jacobs, J Joubert and JW Odendaal, “Extended reciprocity-based computation of mutual admittance between CPW-fed slots on conductor-backed two-layer substrates”, accepted for publication Microwave and Optical Technology Letters, Jan. 2009.

[48] JM Steyn, JW Odendaal and J Joubert, “Double dipole antenna for dual-band WLAN applications”, Microwave and Optical Technology Letters, Vol. 51, No. 9, pp. 2034-2038, Sept. 2009.

[49] WP du Plessis, JW Odendaal and J Joubert, “Extended analysis of retrodirective cross- eye jamming”, IEEE Trans. Antennas and Propagation, Vol. 57, no. 9, pp. 2803-2806, Sept. 2009.

[50] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Improved diffraction model and numerical validation for horn antenna gain calculations”, International Journal of RF and Microwave Computer-Aided Engineering, Vol. 19, no. 6, pp. 701-711, Nov. 2009.

[51] JM Steyn, JW Odendaal and J Joubert, “Dual-band dual-polarized array for WLAN applications”, Progress in Electromagnetics Research C, Vol. 10, pp. 151-161, 2009.

[52] B Jacobs, JW Odendaal, and J Joubert, “The Effect of Manufacturing and Assembling Tolerances on the Performance of Double-Ridged Horn Antennas” Journal of Electromagnetic Waves and Applications. Vol. 24, no. 10, page 1279 1290, 2010.

[53] J Joubert, JW Odendaal and J Prinsloo, 'A high gain dual-polarized planar slot array for WLAN applications' Electronics Letters, Vol. 46, No. 15, 22 July 2010.

[54] WP du Plessis, JW Odendaal and J Joubert, “Experimental Simulation of Retrodirective Cross-eye Jamming’, IEEE Transactions on Aerospace and Electronic Systems, Vol. 47, No. 1, pp. 734-740, January 2011. 

[55] WP du Plessis, JW Odendaal and J Joubert, “Tolerance Analysis of Cross-Eye Jamming Systems’, IEEE Transactions on Aerospace and Electronic Systems, Vol. 47, No. 1, pp. 740-745, January 2011. 

[56] OB Jacobs, JW Odendaal and J Joubert, “Analysis and design of a wide band omnidirectional antenna’, Microwave and Optical Technology Letters, Vol. 53, No. 6, pp. 1352-1356, June 2011. 

[57] OB Jacobs, JW Odendaal and J Joubert, “Elliptically Shaped Quad-Ridge Horn Antennas as Feed for a Reflector’, IEEE Antennas and Propagation Wireless Letters, Vol. 10, pp. 756-759, 2011. 

[58] J. Joubert, J.C. Vardaxoglou, W.G. Whittow and J.W. Odendaal, “CPW-Fed Cavity-Backed Slot Radiator Loaded with an AMC Reflector”, IEEE Trans. Antennas and Propagation, Vol. 60, no. 2, pp. 735-742, Feb. 2012.

[59] B Jacobs, JW Odendaal and J Joubert, “An Improved Design for a 1 18 GHz Double Ridged Guide Horn Antenna”, IEEE Transactions on Antennas and propagation, Vol. 60, no.9, pp. 4110-4118, Sept. 2012.

[60] OB Jacobs, JW Odendaal and J Joubert, “Quad ridged horn antenna with elliptically shaped side walls”, IEEE Transactions on Antennas and propagation, Vol. 61, no. 6, pp. 2948-2955 , June 2013.

[61] PH van der Merwe, JW Odendaal and J Joubert, “An optimized quad-ridged horn antenna with pyramidal sidewalls”, Journal of Electromagnetic Waves and Applications, Vol. 27, no. 17, pp. 2263-2273, Sept. 2013.

[62] G. Mayhew-Ridgers, P.A. van Jaarsveld, J.W. Odendaal and J. Joubert, “Accurate Gain Measurements for Large Antennas using Modified Gain-Transfer Method”, Antennas and Wireless Propagation Letters, Vol. 13, pp. 369-371,  2014.

[63] M. Nel, J. Joubert and J.W. Odendaal, “The Measurement of Complex Antenna Transfer Functions for Ultra-Wideband Antennas in a Compact Range”, IEEE Antennas and Propagation Magazine, Vol. 56, No. 6, pp. 163 - 170, Dec. 2014.

[64] K.H. Kloke, J. Joubert and J.W. Odendaal, “Coaxial End-Launched and Microstrip to Partial H-Plane Waveguide Transitions”, IEEE Trans. Microwave Theory and Techniques, Vol. 63, no. 10, pp. 3103-3108, Oct. 2015.

[65] J. Joubert and J.W. Odendaal, “Design of compact planar rat-race and branch-line hybrid couplers using polar curves”, Microwave and Optical Technology Letters, Vol. 57, no. 11, pp. 2637-2640, Nov. 2015.

[66] C. Pienaar, J.W. Odendaal, J.C. Smit, J. Joubert and J.E. Cilliers, "RCS Results for an Electrically Large Realistic Model Airframe", ACES Express Journal, Vol. 1, No. 2, pp. 52-55, Feb. 2016.

[67] M. Pienaar, J.W. Odendaal, J.E. Cilliers, K.H. Kloke and J. Joubert, "An Active Wideband Reference Target for the Calibration of Ground to Air Radar Systems", Microwave and Optical Technology Letters, Vol. 58, No. 5, pp.1041-1044, May 2016.

[68] M. Pienaar, J.W. Odendaal, J.C. Smit,  J. Joubert and J.E. Cilliers, " Active calibration target for bistatic radar cross-section measurements", Radio Science, Vol. 51, No. 5, pp. 515-523, May 2016.

[69] M. van Rooyen, J.W. Odendaal, and J. Joubert, "High Gain Directional Antenna for WLAN and WiMAX Applications", IEEE Antennas and Wireless Propagation Letters, 2017.

[70] C. Pienaar, J.W. Odendaal, J.C. Smit, J. Joubert and J.E. Cilliers, "RCS Validation of Asymptotic Techniques Using Measured Data of an Electrically Large Complex Model Airframe", Applied Computational Electromagnetics Society Journal, Vol. 32, No. 1, pp. 60-67, Jan. 2017.

[71] R Ferreira, J. Joubert and J.W. Odendaal, “A Compact Dual-Circularly Polarized Cavity-Backed
Ring-Slot Antenna”, IEEE Transactions on Antennas and Propagation, Vol. 65, No. 1, pp. 364-368, January 2017.

[72] L. Potgieter, J. Joubert and J.W. Odendaal, "Design of Centre-Fed Printed Planar Slot Arrays ", International Journal of Microwave and Wireless Technologies, March 2017.

[73] C. Kenny, J.W. Odendaal and J. Joubert, “Wideband Antenna for 4G MIMO Applications”, Microwave and Optical Letters, Vol. 59, No. 3, pp. 601-604, March 2017.

[74] C. Pienaar, J.W. Odendaal, J.C. Smit, J. Joubert and J.E. Cilliers, "RCS Results for an Electrically Large Realistic Model Airframe", Applied Computational Electromagnetics Society Journal, Vol. 33, No. 1, pp. 87-90, Jan. 2018.

 

Publications: International Conferences

[1] CWI Pistorius and JW Odendaal, 'Horn Antenna with Modified Sidelobe Level', Digest of the USNC/URSI National Radio Science Meeting, Dallas TX, USA, p. 251, June 1990.

[2] JW Odendaal and CWI Pistorius, 'A Method to Determine the Phase Centers of the Field in the Aperture of a Horn Antenna', Digest of the USNC/URSI National Radio Science Meeting, London ON, Canada, p 33, June 1991.

[3] JW Odendaal, IJ Gupta and EK Walton, 'Enhanced High Resolution Radar Imaging', 1994 AMTA Symposium, Long Beach, California, pp 449-454, October 1994.

[4] JW Odendaal, '3-D High Resolution Radar Imaging', 1994 Asia-Pacific Microwave Conference, Tokyo, Japan, pp. 841-844, December 1994.

[5] JW Odendaal and PA van Jaarsveld, 'Parameter Estimation of Frequency Dependent Scatterers', Digest of the USNC/URSI National Radio Science Meeting, Newport Beach CA, USA, p 117, June 1995.

[6] JW Odendaal, E Barnard and CWI Pistorius, “MUSIC Algorithm for Radar Imaging”, Progress in Electromagnetic Research Symposium (PIERS), Innsbruck, Austria, p 457, July 1996.

[7] EM Romanowska, JW Odendaal and DJ Janse van Rensburg, “On the Use of Hardware Gating as a Time-Domain Filtering Technique for Electromagnetic Scattering Measurement in a Compact Range”, Proceedings of the Eighteen Annual Antenna Measurement and Techniques (AMTA) Symposium, Seattle, Washington, pp 151-155, October 1996.

[8] CB Wilsen, DB Davidson, JW Odendaal and DJ Janse van Rensburg, “The RCS reduction of Microstrip Patch Antennas”, Proceedings of the Tenth International Conference on Antennas and Propagat. (ICAP), Edinburgh, United Kingdom, pp. 1.174 - 1.177, April 1997.

[9] W Theunissen, JW Odendaal and J Joubert, “Using measured feed data in axially symmetric dual reflector system software models to predict antenna parameters”, Proceedings of the Tenth International Conference on Antennas and Propagation (ICAP), Edinburgh, United Kingdom, April 1997.

[10] G Mayhew-Ridgers, JW Odendaal and J Joubert, “The effect of non-plane wave conditions on the gain-transfer method”, Proceedings of the International Symposium on Electromagnetic Theory, Thessaloniki, Greece, pp 106-108, May 1998.

[11] P Niemand and JW Odendaal, “Characterization of radar absorbing material in the time-domain”, Proceedings of Progress in Electromagnetic Research Symposium (PIERS), Nantes, France, p 157, July 1998.

[12] J Abele, J Joubert, and JW Odendaal, “Introduction of multiple nulls in an omni-directional pattern using circular arrays”, Proceedings of the South African Symposium on Communications and Signal Processing, pp 359-360, Cape Town, September 1998.

[13] G Mayhew-Ridgers, JW Odendaal, and J Joubert, “Accuracy of the gain-transfer method for a standard gain antenna and a test antenna with equal aperture dimensions”, Proceedings of the South African Symposium on Communications and Signal Processing, pp 313-314, Cape Town, September 1998.

[14] P Niemand and JW Odendaal, “Characterization of radar absorbing material using time-domain techniques”, Proceedings of the South African Symposium on Communications and Signal Processing, pp 367-372, Cape Town, September 1998.

[15] JW Odendaal and D Grygier, “RCS contribution from Engine Inlets”,IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting, Orlando FL, USA, p. 273, July 1999.

[16] P Niemand, JW Odendaal and J Joubert, “Multiple null synthesis in an otherwise omnidirectional pattern of a cylindrical microstrip array”, Millennium conference on antennas and propagation, Davos Switzerland, p 627, April 2000.

[17] M da Silveira, JW Odendaal and J Joubert, “Cellular system capacity increase using spatially distributed adaptive array systems”, Digest of the USNC/URSI National Radio Science Meeting, Salt Lake City, USA, p.137, July 2000.

[18] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Array performance of a new annular-ring microstrip antenna element”, Digest of the USNC/URSI National Radio Science Meeting, Salt Lake City, USA, p. 313, July 2000.

[19] JW Odendaal, D Grygier and J Mann, “Internal Electromagnetic Scattering of airframe wings”, Proceedings of SPIE: Subsurface sensing technologies and applications II, San Diego, USA, pp. 39-46, July 2000.

[20] G Mayhew-Ridgers, JW Odendaal and J Joubert, “New feeding mechanism for probe-fed microstrip antennas on thick substrates”, Satcam 2000, Somerset West, September 2000.

[21] AC de Villiers, JW Odendaal and J Joubert, “Characterization of the quiet zone in a compact range using a dual feed system”, Satcam 2000, Somerset West, September 2000.

[22] P Niemand, JW Odendaal and J Joubert, “Cylindrical Microstrip Array for Interference Suppression”, Satcam 2000, Somerset West, September 2000.

[21] DM De Haaij, J Joubert and JW Odendaal, “Impedance matching of microstrip antennas with a parallel resonant circuit”, Proceedings of the 2001 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, Boston MA, USA, 8 - 13, p 80, July 2001.

[22] P Niemand, JW Odendaal and J Joubert, “Mutual coupling effects and compensation for cylindrical null-steering microstrip patch arrays”, Proceedings of the 2001 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, Boston MA, USA, p 171, July 2001.

[23] M Da Silveira, JW Odendaal and J Joubert, “The range increase of adaptive versus phased arrays in mobile radio systems: interference included”, Proceedings of the 2001 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, Boston MA, USA, p 86, July 2001.

[24] JP Jacobs, J Joubert and JW Odendaal, “Characterization of conducter-backed CPW-fed slot antennas with two layered dielectric substrate”, Proceedings of the 2001 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, Boston MA, USA, p 217, July 2001.

[25] MJ Prinsloo and JW Odendaal “Microwave field probe calibrations in the near field of a standard gain horn antenna”, Proceedings of the 2002 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, San Antonio TX, USA, p 106, June 2002.

[26] JP Jacobs, J Joubert and JW Odendaal, “Use of broadside conductor-backed CPW-fed twin linear-slot antennas for increased radiation efficiency on two-layer dielectric substrates”, Proceedings of the Progress in Electromagnetics Research Symposium (PIERS), Cambridge, Massachussets, p. 618, July 2002.

[27] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Attachment modes for spectral domain moment-method analysis of probe-fed microstrip patch antennas”, Proceedings of the 2002 IEEE Africon Symposium, George, RSA, pp 525 – 526, October 2002.

[28] P Niemand, J Joubert and JW Odendaal, “Practical considerations for interference suppression cylindrical arrays”, Proceedings of the 2002 IEEE Africon Symposium, George, RSA, pp 545 – 548, October 2002.

[29] JP Jacobs, J Joubert and JW Odendaal, “Radiation efficiency of broadside conductor-backed CPW-fed twin slot antennas on two-layer dielectric substrate”, Proceedings of the 2002 IEEE Africon Symposium, George, RSA, pp 531 – 533, October 2002.

[30] D de Haaij, JW Odendaal and J Joubert, “Increasing the bandwidth of a microstrip patch antenna with a single parallel resonant circuit”, Proceedings of the 2002 IEEE Africon Symposium, George, RSA, pp 527 – 530, October 2002.

[31] JP Jacobs, J Joubert and JW Odendaal, “Conductor backed CPW fed broadside linear slot antenna array on two layer dielectric substrate”, Proceedings of International ITG Conference on Antennas (INICA) 2003, Berlin: VDE Verlag, pp. 61-63.

[32] G Mayhew-Ridgers, JW Odendaal and J Joubert, ” Spectral-domain moment-method analysis of wideband patch antennas with capacitive probe feeds“, Proceedings of the International Symposium on Electromagnetic Theory, Pisa, Italy, pp 670-672, May 2004.

[33] JP Jacobs, J Joubert and JW Odendaal, “Characterization of conducter-backed CPW-fed slot antennas with two layered dielectric substrate”, Proceedings of the 2005 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, Washington DC, USA, CD ROM, July 2005.

[34] JP Jacobs, J Joubert and JW Odendaal, “Mutual admittance of slot antennas on conductor-backed two-layer substrates”, Mediterranean Microwave Symposium, 19-21 September 2006, Genova, Italy.

[35] JP Jacobs, J Joubert and JW Odendaal, “Calculation of mutual admittance between CPW-fed slots on two-layer conductor-backed substrates using reciprocity-based expression”, ICEAA 2007, 17-21 September 2007, Turin, Italy.

[36] G Mayhew-Ridgers, JW Odendaal and J Joubert, “Using Numerical Methods to Validate the Analysis of Pyramidal Horn Antennas through Improved Diffraction Theory”, Proceedings of the European Electromagnetic International Symposium, Lausanne, Switzerland, July 2008.

[37] JB du Toit, JW Odendaal and J Joubert, “Characterization and Phase Compensation of a Coplanar-waveguide to Coplanar-strip Balun”, Proceedings of the European Electromagnetics International Symposium, Lausanne, Switzerland, July 2008.

[38] J. Joubert, J.W. Odendaal and J.P. Jacobs, “Etched slot arrays with corporate slotline feed networks”, Proceedings of the 2009 South African IEEE AP/MTT Conference, Stellenbosch, South Africa, March 2009.

[39] G. Mayhew-Ridgers, J.W. Odendaal and J. Joubert, “Capabilities of diffraction theory for horn antenna gain calculations”, Proceedings of the 2009 South African IEEE AP/MTT Conference, Stellenbosch, South Africa, March 2009.

[40] J Steyn, JW Odendaal and J Joubert, “A Polarization Diverse Antenna for Dual-Band WLAN Applications”, Proceedings of the European Microwave Week 2009, Rome, Italy, September 2009.

[41] B Jacobs, JW Odendaal and J Joubert, “Modelling Manufacturing Tolerances in 1-18 GHz Double-Ridged Horn Antennas”, Proceedings of the European Microwave Week 2009, Rome, Italy, September 2009. 

[42] J.W. Odendaal, B Jacobs, OB Jacobs and J. Joubert, “Wideband Ridged Guide Antennas”, Proceedings of the 2011 South African IEEE AP/MTT/EMC Conference, Stellenbosch, South Africa, April 2011.

[43] J. Joubert, J.C. Vardaxoglou, W.G. Whittow and J.W. Odendaal, “A Low Profile Cavity-Backed Slot Antenna Loaded with an AMC Reflector”, Proceedings of the 2011 South African IEEE AP/MTT/EMC Conference, Stellenbosch, South Africa, April 2011.

[44] OB Jacobs, JW Odendaal and J Joubert, “Quad Ridge Horn Antenna with Elliptically Shaped Sidewalls”, Proceedings of the 2011 International Conference on Electromagnetics in Advanced Applications, Torino, Italy, 12-16 September 2011. 

[45] P.H. van der Merwe, J.W. Odendaal and J. Joubert, “A wide bandwidth compact quad-ridged horn antenna”, The 15th International Symposium of ANTEM, Toulouse, France, 25-25 June 2012. 

[46] K.H. Kloke, J. Joubert and J.W. Odendaal, “End-launched coaxial to partial H-plane waveguide adaptor”, IEEE International Symposium on Antennas and Propagation and USNC/URSI Radio Science Meeting, Chicago, IL, USA, 8-14 July 2012. 

[47] P.H. van der Merwe, J.W. Odendaal and J. Joubert, “A dual polarized ridged horn antenna”, Proceedings of the 2012 International Conference on Electromagnetics in Advanced Applications, Cape Town, South Africa, 2-7 September 2012.

[48] G. Mayhew-Ridgers, P.A. van Jaarsveld, J.W. Odendaal and J. Joubert, “Improved Gain-Transfer Method for Long Antenna”, Proceedings of the European Microwave week 2013, Nuremburg, Germany, 6-11 October 2013.

[49] L. Potgieter, J. Joubert and J.W. Odendaal, “Design of Printed Rectangular Grid Slot Arrays for WLAN Applications”, Proceedings of the 2014 Loughborough Antennas & Propagation Conference, Loughborough, UK,  10-11 November 2014.

[50] R. Ferreira, J. Joubert and J.W. Odendaal, “A Cavity-Backed Ring-Slot Radiator with an AMC Reflector”, Proceedings of the 1st URSI Atlantic Radio Science Conference, Gran Canaria, Spain,  18-22 May 2015.

[51] C. Pienaar, J.W. Odendaal, J.C. Smit, J. Joubert and J.E. Cilliers, “Comparing Different Numerical Methods for RCS Prediction of a Realistic Electrically Large Complex Airframe with Measured Data”, Proceedings of the 1st URSI Atlantic Radio Science Conference, Gran Canaria, Spain,  18-22 May 2015.

[52] M. Pienaar, J.W. Odendaal, J.E. Cilliers, J.C. Smit and J. Joubert, “Dynamic Radar Calibrations with an Airborne Active Calibration Target”, Proceedings of the 1st URSI Atlantic Radio Science Conference, Gran Canaria, Spain,  18-22 May 2015.

[53] C. Kenny, J.W. Odendaal and J. Joubert, “Wideband Antenna for 4G MIMO Applications”, Proceedings of the 2015 Loughborough Antennas & Propagation Conference, Loughborough, UK, 2-4 November 2015.

[54] M van den Berg, J. Joubert and J.W. Odendaal, “A Thin Single-Layer Linear-To-Circular Metasurface Transmission Polarizer with Improved Bandwidth”, Proceedings of the 2016 Loughborough Antennas & Propagation Conference, Loughborough, UK, November 2016.

[55] J.C. Smit and J.W. Odendaal, “High range resolution results of the effects of microgeometry on the RCS of electrically large canonical objects”, 2017 Computing and Electromagnetics International Workshop (CEM), Barcelona , Spain,  21-24 June 2017.

[56] C. Pienaar, J.W. Odendaal, J. Joubert, M. Pienaar and J.C. Smit, “Comparison of various CEM methods to predict RCS of lossy dielectrics”, Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications, Verona, Italy,  11-15 September 2017.

[57] M. Pienaar, J.W. Odendaal, J. Joubert, C. Pienaar and J.C. Smit, “Bistatic RCS measuremnets in a Compact Range”, Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications, Verona, Italy,  11-15 September 2017.

[58] J.C. Smit and J.W. Odendaal, “High range resolution results of the effects of microgeometry on the RCS of electrically large canonical objects”, Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications, Verona, Italy,  11-15 September 2017.

Address and contact details

Centre for Electromagnetism
Department of Electrical, Electronic and Computer Engineering
Antenna Compact Range 1-11
Building 9, South Campus
University of Pretoria
Lynnwood Road
Pretoria

Telephone number: (+27 12) 420-3545
Fax number: (+27 12) 362-5000
Email:  [email protected]

Published by Wimpie Odendaal

Copyright © University of Pretoria 2021. All rights reserved.

FAQ's Email Us Virtual Campus Share Cookie Preferences