This paper presents a technique developed for increasing the beam width of the circularly polarised (CP) radiation. With a pyramidal ground structure and a partially enclosed flat conducting wall adopted, the designed CP patch antenna has a height of about 0.12λ only and exhibits a 3dB axial-ratio beamwidth of more than 130°. The experimental results for operating in the 1575MHz GPS band are presented and discussed.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering