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|Title:||Wideband circularly polarized patch antenna using broadband baluns|
|Authors:||Guo, Y.-X. |
|Source:||Guo, Y.-X.,Khoo, K.-W.,Ong, L.C. (2008-02). Wideband circularly polarized patch antenna using broadband baluns. IEEE Transactions on Antennas and Propagation 56 (2) : 319-326. ScholarBank@NUS Repository. https://doi.org/10.1109/TAP.2007.915427|
|Abstract:||A novel 90° broadband balun comprising a broadband 90° Schiffman phase shifter is introduced as a means of enhancing the wideband circular polarization performance of dual-fed type microstrip antennas. The proposed 90° broadband balun delivers good impedance matching, balanced power splitting and consistent 90° (±5°) phase shifting, across a wide bandwidth (∼57.5%). A circular patch antenna utilizing the proposed 90° broadband balun is shown to attain measured impedance S11 < -10 dB) and axial ratio (AR < 3 dB) bandwidths of 60.24% and 37.7%, respectively, for the dual L-probe case; and 71.28% and 81.6% respectively, for the quadruple L-probe case. © 2008 IEEE.|
|Source Title:||IEEE Transactions on Antennas and Propagation|
|Appears in Collections:||Staff Publications|
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