Abstract
A novel circularly polarised (CP), single-fed widebeam microstrip antenna is presented. The antenna consists of a corner-truncated square patch and a three dimensional circular ground structure. Simulated and measured results show that, owing to the ground structure, the 3dB beamwidth of the CP radiation can reach more than 165°, which is about 85° greater than that of a corresponding regular microstrip antenna. It is also shown that experimental results were in good agreement with the simulated performance. Details of the proposed 3-D circular ground structure are described, and the effects of various dimensions of the proposed ground structure on the beamwidth enhancement of CP radiation are studied.
| Original language | English |
|---|---|
| Pages (from-to) | 135-143 |
| Number of pages | 9 |
| Journal | Progress in Electromagnetics Research Letters |
| Volume | 10 |
| DOIs | |
| State | Published - 2009 |
| Externally published | Yes |
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