Abstract
In this paper, a circularly polarized (CP) low cost, low profile antenna with broadband stable gain is proposed. The antenna consists of a grounded square slot with two inverted-L shaped microstrips, an asymmetrical Y-shaped microstrip radiator with a stub, and several fine tuning elements. The CP radiation is first realized by using the Y-shaped microstrip line, which incorporates a stub is to realize better impedance matching. Next, by utilizing two Inverted-L microstrips into the corners of the grounded slot, the axial ratio (AR) characteristic can be further improved. A wider AR bandwidth (ARBW) can be achieved by utilizing four rectangular strips as fine tuning elements. Simulation results show the proposed antenna demonstrates a radiation with a CP bandwidth of 50% and a stable gain with average value of 5.18 dBi.
| Original language | English |
|---|---|
| Article number | 012020 |
| Journal | Journal of Physics: Conference Series |
| Volume | 2464 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2023 |
| Event | 2nd International Conference on Advanced Optics and Photonics Research in Engineering, AOPR 2022 - Virtual, Online Duration: 16 Feb 2022 → 17 Feb 2022 |
Keywords
- Broad band
- CP antenna
- square slot
- stable gain