A new configuration for a circularly polarised microstrip antenna with an omnidirectional pattern is proposed. This antenna consists of two rectangular patches with perturbation segments, which are arranged back-to-back relative to a coplanar waveguide (CPW) on a ground plane. The characteristics of the proposed antenna were clarified by experiments, and the mechanism to produce the circular polarisation was proved by using an electromagnetic simulator. The radiation patterns and input impedances were measured as a parameter of the width of the perturbation segment. Good circularly polarised radiation patterns with an omnidirectional pattern and input impedance characteristics were obtained.
|Number of pages||4|
|Journal||IEE Proceedings: Microwaves, Antennas and Propagation|
|Publication status||Published - 1999 Dec 1|
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering