Title | Monofilar Spiral Slot Antenna for Dual-Frequency Dual-Sense Circular Polarization |
Publication Type | Journal Article |
Year of Publication | 2011 |
Authors | Bao, XL, Ammann, MJ |
Journal Title | IEEE Transactions on Antennas & Propagation |
Volume | 59 |
Issue | 8 |
Pagination | 3061-3065 |
Journal Date | 08/2011 |
Abstract | A dual-band antenna with right-hand circular polarization for the first frequency and the counter polarization at the second frequency is realized with compact printed spiral slots. The coupled spiral slots are fed by a 50 Ω microstrip line. Dual-sense circularly-polarized performance is achieved by realizing oppositely-directed current rotation for the two frequency bands. A parametric study shows that the additional slot significantly improves the bandwidth for both frequency bands. Measured results show that the fractional impedance bandwidth is greater than 18% for both bands. The 3 dB axial-ratio bandwidths are 4.5% and 3.5% for the RHCP and LHCP bands, respectively. |
Notes | https://www.researchgate.net/publication/224240832_Monofilar_Spiral_Slot... |
URL | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5871273 |
DOI | 10.1109/TAP.2011.2158964 |
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