Summary
International Symposium on Antennas and Propagation
2008
Session Number:3C19
Session:
Number:3C19-4
Vehicular LF/UHF Antenna Design for PKE System Applications
Yi-Fong Wang, I-Fong Chen, Chia-Mei Peng, Bo-Chiuan Chen, Chih-Neng Liang,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
A spiral monopole antenna with loading component (inductor is parallel capacitor) for vehicle application in passive keyless entry (PKE) system is proposed. The frequency range of proposed antenna can cover LF (125 KHz) and UHF (433 MHz) bands. The slow wave effects were used to reduce the size of the antenna, if varying the width of spiral resonator where has the large current density, the relative lower resonant frequency was obvious. Experimental results of the constructed prototype had been presented to illustrate novelty of antenna characteristics. The omni-directional effects on the operating bands of the proposed antenna had also been addressed.