Title | A Cavity-Backed Spiral Slot Antenna with Wide Axial Ratio Beamwidth for GPS System |
Publication Type | Journal Article |
Year of Publication | 2014 |
Authors | Bao, XL, Ammann, MJ |
Journal Title | Microwave and Optical Technology Letters |
Volume | 56 |
Issue | 5 |
Pagination | 1050-1054 |
Journal Date | 05/2014 |
Abstract | A monofilar spiral slot antenna with a cavity-backed reflector is presented, which can achieve the performance of the wide axial ratio beamwave for global positioning system (GPS) system. It comprises an arrangement of a single printed spiral slots fed by a 50-Ω microstrip line. By using cavity-backed covering the slot structure, a wide axial ratio beamwidth performance is achieved in the GPS L1 frequency. The angle with less than 3-dB axial ratio at 1.575 GHz in the YoZ plane is about 215°. The measured results show that the HPBW beamwidths at 1.575 GHz are 100° in the YoZ plane, respectively. The peak gain is 5.5 dBic. |
Notes | https://www.researchgate.net/publication/260680536_A_cavity-backed_spira... |
URL | http://onlinelibrary.wiley.com/doi/10.1002/mop.28255/abstract |
DOI | 10.1002/mop.28255 |
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