Title | Dual-Frequency Dual-Sense Circularly-Polarized Slot Antenna Fed by Microstrip Line |
Publication Type | Journal Article |
Year of Publication | 2008 |
Authors | Bao, XL, Ammann, MJ |
Journal Title | IEEE Transactions on Antennas & Propagation |
Volume | 56 |
Issue | 3 |
Pagination | 645-649 |
Journal Date | 03/2008 |
Abstract | A new design of a dual-frequency dual circularly-polarized slot antenna is presented. The dual-frequency is achieved using a single-layer microstrip-fed configuration coupled to a modified annular-slot antenna. The dual sense circular-polarization is obtained by four unequal linear slots which augment the annular slot. Experimental results show the proposed antenna has good circular polarization characteristics for both right-hand circular polarization (RHCP) and left-hand circular polarization (LHCP). The 10 dB return loss impedance bandwidths for the lower (RHCP) and higher (LHCP) bands are 26.7% and 11.3%, respectively. The 3 dB axial-ratio bandwidths are 6.1% and 6.0% with respect to 1.5 GHz (RHCP) and 2.6 GHz (LHCP), respectively. |
URL | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=4463882 |
DOI | 10.1109/TAP.2008.916961 |
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