Abstract
A high gain, circularly polarized array antenna is proposed with low profile and compact size using T-shaped top loading, t-matching, and a reflector. Composed of 4 individual elements, the array has a −3-dB impedance bandwidth of 1.39% (1.564–1.586 GHz) and a 3-dB axial ratio beamwidth of 79◦ (−42◦ –37◦) in measurement. The front-to-side ratio of the total realized gain pattern is 27.1 dB, and the front-to-back ratio is 25.5 dB. The peak realized gain is 11.0 dBi in the forward (+z) direction. The proposed antenna is a good candidate for functioning as an anti-jam antenna in global positioning system, helping to block out jamming signals coming from the horizontal (90◦ and 270◦) planes.
| Original language | English |
|---|---|
| Pages (from-to) | 79-86 |
| Number of pages | 8 |
| Journal | Progress In Electromagnetics Research C |
| Volume | 139 |
| DOIs | |
| State | Published - 2024 |
Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
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