Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrC4
Session:
Number:FrC4-4
Novel Filter-Antenna using Slot Antenna and Centrally Loaded Coupled Line Structure
Wen-Yao Zhuang, Pedro Cheong, Wai-Wa Choi, Kam-Weng Tam,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
In this paper, a novel Integrated Filter-Antenna (IFA) is presented. The filtering element is based on the simple quasi-elliptic bandpass filter with capacitive loading, in which the fundamental resonance is significantly attenuated and thus the intrinsic harmonic resonance associated with two zeros is deliberately utilized to realize a quasi-elliptic bandpass response with simultaneous control of zeros and bandwidth. The slot antenna is developed by a symmetrical C-shaped slot and a microstrip fed line which feds at the center. The simulations and measurements of a 2.4 GHz prototype bandpass filter and a 2 GHz slot antenna are presented in this work. The isolations between the filter and the antenna are better than 20 dB.