dc.contributor.author |
Mofolo, ROM
|
|
dc.contributor.author |
Lysko, Albert A
|
|
dc.contributor.author |
Olwal, TO
|
|
dc.contributor.author |
Clarke, WA
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|
dc.date.accessioned |
2011-11-18T14:20:04Z |
|
dc.date.available |
2011-11-18T14:20:04Z |
|
dc.date.issued |
2011-09 |
|
dc.identifier.citation |
Mofolo, R.O.M. et al. 2011. Beam steering for circular switched parasitic arrays using a combinational approach. IEEE Africon 2011, Livingstone, Zambia, 13-15 September 2011 |
en_US |
dc.identifier.issn |
7283 |
|
dc.identifier.uri |
http://hdl.handle.net/10204/5318
|
|
dc.description |
IEEE Africon 2011, Livingstone, Zambia, 13-15 September 2011 |
en_US |
dc.description.abstract |
In this paper, the authors present a method of electronic beam steering for circular switched parasitic array (SPA) antennas. In circular SPA antennas, one achieves azimuth beam steering by open-circuiting and short-circuiting different parasitic elements, usually with only one parasitic element open-circuited at a time. For the SPA antenna with few parasitic elements, this results in low azimuth beam steering resolution. In the proposed method, the authors iterate through different combinations of parasitic elements and the possible switch states of the lumped impedance loads connected to the parasitic elements. Their method aims to increase the azimuth beam steering resolution of the circular SPA antennas. The method is verified using a combination of simulation (using both MATLAB and WIPL-D) and a SPA antenna prototype implementation. The MATLAB code uses the induced EMF method, while the WIPL-D uses the Methods of Moment (MoM) for solving the antenna impedances. The three sets of results (simulations and measurement) match very well at 2.4 GHz. The results indicate the availability of more options (different loading configurations) for electronic beam switching that can be adopted to improve the beam steering resolution of circular SPA antennas. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
IEEE Africon 2011 |
en_US |
dc.relation.ispartofseries |
Workflow request; |
|
dc.subject |
Electronic beam steering |
en_US |
dc.subject |
Antenna radiation patterns |
en_US |
dc.subject |
Circular switched parasitic arrays |
en_US |
dc.subject |
Method of moments |
en_US |
dc.subject |
Induced EMF method |
en_US |
dc.subject |
IEEE Africon 2011 |
en_US |
dc.title |
Beam steering for circular switched parasitic arrays using a combinational approach |
en_US |
dc.type |
Conference Presentation |
en_US |
dc.identifier.apacitation |
Mofolo, R., Lysko, A. A., Olwal, T., & Clarke, W. (2011). Beam steering for circular switched parasitic arrays using a combinational approach. IEEE Africon 2011. http://hdl.handle.net/10204/5318 |
en_ZA |
dc.identifier.chicagocitation |
Mofolo, ROM, Albert A Lysko, TO Olwal, and WA Clarke. "Beam steering for circular switched parasitic arrays using a combinational approach." (2011): http://hdl.handle.net/10204/5318 |
en_ZA |
dc.identifier.vancouvercitation |
Mofolo R, Lysko AA, Olwal T, Clarke W, Beam steering for circular switched parasitic arrays using a combinational approach; IEEE Africon 2011; 2011. http://hdl.handle.net/10204/5318 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Mofolo, ROM
AU - Lysko, Albert A
AU - Olwal, TO
AU - Clarke, WA
AB - In this paper, the authors present a method of electronic beam steering for circular switched parasitic array (SPA) antennas. In circular SPA antennas, one achieves azimuth beam steering by open-circuiting and short-circuiting different parasitic elements, usually with only one parasitic element open-circuited at a time. For the SPA antenna with few parasitic elements, this results in low azimuth beam steering resolution. In the proposed method, the authors iterate through different combinations of parasitic elements and the possible switch states of the lumped impedance loads connected to the parasitic elements. Their method aims to increase the azimuth beam steering resolution of the circular SPA antennas. The method is verified using a combination of simulation (using both MATLAB and WIPL-D) and a SPA antenna prototype implementation. The MATLAB code uses the induced EMF method, while the WIPL-D uses the Methods of Moment (MoM) for solving the antenna impedances. The three sets of results (simulations and measurement) match very well at 2.4 GHz. The results indicate the availability of more options (different loading configurations) for electronic beam switching that can be adopted to improve the beam steering resolution of circular SPA antennas.
DA - 2011-09
DB - ResearchSpace
DP - CSIR
KW - Electronic beam steering
KW - Antenna radiation patterns
KW - Circular switched parasitic arrays
KW - Method of moments
KW - Induced EMF method
KW - IEEE Africon 2011
LK - https://researchspace.csir.co.za
PY - 2011
SM - 7283
T1 - Beam steering for circular switched parasitic arrays using a combinational approach
TI - Beam steering for circular switched parasitic arrays using a combinational approach
UR - http://hdl.handle.net/10204/5318
ER -
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en_ZA |