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https://doi.org/10.1109/TAP.2007.915427
Title: | Wideband circularly polarized patch antenna using broadband baluns | Authors: | Guo, Y.-X. Khoo, K.-W. Ong, L.C. |
Keywords: | Circular polarization Microstrip antennas Wideband antennas |
Issue Date: | Feb-2008 | Citation: | 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 | URI: | http://scholarbank.nus.edu.sg/handle/10635/83271 | ISSN: | 0018926X | DOI: | 10.1109/TAP.2007.915427 |
Appears in Collections: | Staff Publications |
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