The University of Pretoria has an extremely active (and large) research group,
and this year has provided 5 journal publications, and 2 conference
proceedings.
Much work is done on microwave antenna design and computational
electromagnetics.
Main contact details are Prof. Johan Joubert
(jjoubert@postino.up.ac.za), Prof Wimpie Odendaal
(wodendaa@postino.up.ac.za), Prof JAG Malherbe.
Stellenbosch also has an extremely active group, and this year has excelled
itself with 12 journal publications and 30 international and local
conference proceedings.
There were several M.Sc.'s and two Ph.D.'s produced. Prof Davidson has been
given a grant to use the High Performance Computing Center for CEM work,
and most of the Stellenbosch team are involved with the SKA initiative.
Main contact details are Prof J Cloete(jhcloete@sun.ac.za), Prof
David Davidson(davidson@sun.ac.za), Prof Howard
Reader(hcreader@sun.ac.za), Prof. Keith
Palmer(palmer@sun.ac.za), Prof Petrie Meyer (pmeyer@sun.ac.za).
The Computational Electromagnetics Research Group within the School of
Electrical and Information Engineering consists of Prof A.R.Clark
(AlanRobertClark@gmail.com), and is mainly concerned with the
improvement of the theory behind the simulation package SuperNEC.
At present, I have work based on printed antennas, a hybrid FEM/MoM
implementation for dielectric patch antennas, and a microwave holography
map of the HartRAO Radio Telescope. Additionally, we now have work on parallelising both FEKO and SuperNEC on a Beowulf cluster.
No MSc's were produced in 2007, but three are about to graduate.
Annual Reports of the group are compiled in September and are all to be
found on the sitewww.ee.wits.ac.za/~em, or
ytdp.ee.wits.ac.za/AnnualReport2007.html.
South African Publications in the field of Commission B—2007
J W Odendaal, L Botha, and J Joubert.
A full scale static radar cross-section (RCS) measurement facility.
South African Journal of Science, 103:196–199, May 2007.
J A G Malherbe and P M Malekela.
Dielectric wedge antenna with stepped phase correction in a
nonradiative mode.
Microwave and Optical Technology Letters, 49(8):2030–2032, Aug
2007.
C Dohmen, J W Odendaal, and J Joubert.
Synthesis of conformal arrays with optimized polarization.
IEEE Transactions on Antennas and propagation,
55(10):2922–2925, Oct 2007.
J P Jacobs.
Self and mutual admittance of cpw-fed slots on conductor-backed
two-layer substrate.
Microwave and Optical Technology Letters, 49(11):2798–2802,
Nov 2007.
J P Jacobs, J Joubert, and J W Odendaal.
Calculation of mutual admittance between cpw-fed slots on two-layer
conductor-backed substrates using reciprocity-based expression.
In ICEAA 2007, Turin, Italy, September 2007.
J A G Malherbe.
Design of ultra wideband tem horns.
In Proceedings of Asia-Pacific Microwave Conference 2007,
Bangkok, Thailand., pages 449–452, December 2007.
M M Botha.
Fully hierarchical divergence-conforming basis functions on
tetrahedral cells, with applications.
International Journal for Numerical Methods in Engineering,
71(2):127–148, 2007.
S M Bradshaw, W J Louw, H C Reader, S A Kingman, M Celuch, and W Kijewska.
Techno-economic considerations in the commercial microwave processing
of mineral ores.
Journal of Microwave Power and Electromagnetic Energy,
40(4):228–240, 2007.
MEYER P DE VILLIERS DIL, VAN DER WALT PW.
Design of a 10-way conical transmission line power combiner.
Ieee Transactions on Microwave Theory and Techniques,
55(2):302–308, 2007.
READER HC EBERTSOHN NW, GESCHKE RH.
Cable trays in emc: Measurement and modeling to 30 mhz.
Ieee Transactions on Electronics Packaging Manufacturing,
49(2):1–8, 2007.
VAN ROOYEN MW PALMER KD.
Simple broadband measurements of balanced loads using a network
analyzer.
Ieee Transactions on Instrumentation and Measurement,
55(1):266–272, 2007.
MASON IM PALMER KD RÜTSCHLIN M, CLOETE JH.
The radio frequency dielectric properties of the stratified ug1-ug2
geological unit in the bushveld complex.
Journal of Applied Geophysics, 62(4):345–360, 2007.
MEYER P SCHOEMAN M.
A comparative study on adaptive rational macromodels of highly
resonant structures.
International Journal of Rf and Microwave Computer-Aided
Engineering, 17(3):286–294, 2007.
VAN DER WALT PW SICKEL T, MEYER P.
An in situ tunable diode mounting topology for high power x-band
waveguide switches.
Ieee Transactions on Microwave Theory and Techniques,
55(2):281–285, 2007.
DAVIDSON DB SWARTZ JP.
Curvilinear vector finite elements using a set of hierarchical basis
functions.
Ieee Transactions on Antennas and Propagation, 55(2):440–446,
2007.
VAN DER WALT PW VAN DER MERWE PJ, CLOETE JH.
Bipolar waveform generator for time limited response when driving rc
loads.
Electronics Letters, 43(15):829–830, 2007.
RYLANDER T BOTHA MM.
Error analysis of singularity cancellation quadrature on curvilinear
triangles.
In 10th International Conference on Electromagnetics in Advanced
Applications ICEAA'07, Torino Incontra Congress Center, Torino, Italy,
page 4, 2007.
RYLANDER T BOTHA MM.
Numerical evaluation of near-singular integrals on curvilinear
triangular domains.
In IEEE AP-S International Symposium, Sheraton Waikiki,
Honolulu, Hawaii, USA, pages 4837–4840, 2007.
BOTHA MM.
The electromagnetic, volume integral equation method of moments, with
curl- conforming discretizations.
In IEEE AP-S International Symposium, Sheraton Waikiki,
Honolulu, Hawaii, USA,, pages 5628–5631, 2007.
YOUNG A DAVIDSON DB, BOTHA MM.
Progress on radiation boundary conditions for electromagnetic finite
element analysis.
In 10th International Conference on Electromagnetics in Advanced
Applications ICEAA'07, Torino Incontra Congress Center, Torino, Italy, pages
952–955, 2007.
LEZAR E DAVIDSON DB.
Implementation of arbitrarily high order hierarchical vector basis
functions for the finite element analysis of a rectangular waveguide.
In Africon-07, Windhoek, Namibia, pages 1–7, 2007.
MEYER P DE VILLIERS DIL.
An efficient grid placing technique for 2-d method of moments
analysis of coupled line structures.
In IEEE Africon 2007, Country Club, Windhoek, Namibia.
DHAENE T MEYER P DESCHRIJVER D, SCHOEMAN M.
Experimental analysis on the relaxation of macromodeling methods.
In IEEE Africon 2007, Country Club, Windhoek, Namibia.
DAVIDSON DB MARAIS N.
A comparison of some finite element time domain formulations in
electromagnetics.
In 10th International Conference on Electromagnetics in Advanced
Applications ICEAA'07, Torino Incontra Congress Center, Torino, Italy, pages
814–817.
MEYER P VALE CAW RIMBI M, READER HC.
Characterization of a choke for a microwave applicator.
In nternational Microwave Power Institute, IMPI 41st Annual
Symposium, Vancouver, Canada, pages 21–2.
MEYER P STEYN W STANDER T, VAN DER WALT PW.
A comparison of simple low-power wedge-type x-band waveguide
absorbing load implementations.
In IEEE Africon 2007, Country Club, Windhoek, Namibia.
VAN NIEKERK PC. VAN DER WESTHUYZEN PJ, FOURIE CJ.
An automated system for impedance measurements in milk.
In Africon-07, Country Club, Windhoek, Namibia.
BRAND KF VAN NIEKERK C.
The experimental design of linear power amplifiers.
In 2007 South African IEEE AP/MTT Conference, Protea Hotel,
Stellenbosch, South Africa.
VAN NIEKERK C DE RAEDT W DERLUYN J GERMAIN M NAUWELAARS BKJC BORGHS G XIAO D,
SCHREURS DMM-P.
Hybrid gan power amplifier designi.
In IMEC, MCP, Kapeldreef, Leuven, Belgium.
DAVIDSON DB YOUNG A.
A comparison of mesh termination schemes for 2d scattering analysis
using the finite element method.
In Africon-07, Country Club, Windhoek, Namibia.
BOTHA MM.
Singularity cancellation quadrature scheme for curvilinear triangular
domains.
In 31th Annual Conference of the South African Society for
Numerical and Applied Mathematics, Stellenbosch University, Stellenbosch.
BOTHA MM.
The method of moments (mom) - an overview of recent research.
In 2007 South African IEEE AP/MTT Conference, Technopark,
Stellenbosch, South Africa.
MASON IM PALMER KD CLOETE JH STEENKAMP J DU PISANI P TROFIMCZYK K BRAY A,
SINDLE TG.
Using slimline borehole radars from cover holes.
In South African Geophysical Association Conference: Book of
Abstracts and CD, Wild Coast Sun, Nata.
DAVIDSON DB.
Grand challenge electromagnetic computer simulation for the meerkat
and ska.
In 2007 National Meeting – Centre for High Performance
Computing, CTICC, CTICC, Cape Town, South Africa.
LAUBSCHER E GESCHKE RH.
Electromagnetic bandgap structures for emc.
In 2007 South African IEEE AP/MTT Conference, Technopark,
Stellenbosch, South Africa.
BADENHORST J LAUBSCHER E READER HC, GESCHKE RH.
Issues in calibrating sensors for emi and suppression of unwanted
modes.
In Southern African Universities Power Engineering Conference,
University of Cape Town.
MARAIS SJ PALMER KD.
Dual and circular polarized antennas for space applications.
In 2007 South African IEEE AP/MTT Conference, Technopark,
Stellenbosch, South Africa.
VAN DER MERWE M SMITH DMP, DE SWARDT JB.
A multi-channel, high bitrate data link for satellite communication.
In 2007 South African IEEE AP/MTT Conference, Technopark,
Stellenbosch, South Africa.
VAN DER WALT PW MASON IM VAN DER MERWE PJ, CLOETE JH.
Design of a monostatic borehole radar.
In 2007 South African IEEE AP/MTT Conference, Technopark,
Stellenbosch, South Africa.
MEYER P VAN DER WALT PW.
Design of a 10-way conical transmission line power combiner.
In 2007 South African IEEE AP/MTT Conference, Technopark,
Stellenbosch, South Africa.
VAN NIEKERK C.
Experimental design of a linear doherty power amplifier.
In 2007 South African IEEE AP/MTT Conference, Technopark,
Stellenbosch, South Africa.