Design of Circularly Polarized Ceramic Antenna on an Asymmetric Ground Plane
Design of the circularly polarized ceramic antenna, suitable for GPS system, on an asymmetric ground plane is presented in this thesis. Firstly, to obtain two isolated ground planes, we insert an L slit on an asymmetric ground plane, making the antenna with a symmetric ground plane. Then, we isolate the excited surface current between the two ground planes by using a quarter-wavelength mini-coaxial cable. The surface current can distribute uniformly on the ground plane when the proposed antenna is in operation, which makes possible a good circularly polarized radiation pattern in the operation band.
Advisor:Chia-Luan Tang; Jian-Yi Wu; Tzung-Wern Chiou; Kin-Lu Wong; Shyh-Tirng Fang
School:National Sun Yat-Sen University
School Location:China - Taiwan
Source Type:Master's Thesis
Keywords:pcb circularly polarized ceramic antennas gps
Date of Publication:05/31/2004