Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 9, Issue -, Pages 728-731Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2010.2060182
Keywords
Circular polarization; patch antenna
Funding
- ShenZhen Science and Technology Planning Project for the Establishment of Key Laboratory [CXB 200903090021A]
- Key Project of Guangdong Province [2009A080207006]
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A new method to reduce the lateral size of the circularly polarized (CP) patch antenna is presented. It is implemented by attaching two sets of vertical right-angle bended stubs to the diagonal corners of the slotted square patch. To demonstrate the effectiveness of this method, three antennas with different lengths of bended stubs are designed and tested. The smallest one has a size reduction of 77.7% in comparison to the conventional half-wave circularly polarized patch antenna. It has impedance bandwidth (VSWR <= 2) of 7.9%, axial ratio (AR) bandwidth (AR <= 3 dB) of 1.53% and peak gain of 4.7 dBic.
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