Higher order cochlea-like channelizing filters

被引:32
作者
Galbraith, Christopher J. [1 ]
Rebeiz, Gabriel M. [2 ]
机构
[1] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA
[2] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92092 USA
关键词
channelizer; cochlea; filter; manifold; multiplexer;
D O I
10.1109/TMTT.2008.925574
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A design method is presented for contiguous-channel multiplexing filters with many channels covering a wide bandwidth. The circuit topology extends previous work on cochlea-like channelizers by introducing multiple resonator-channel filter sections. The new design provides increased stopband rejection, lower insertion loss, and improved passband shape compared with the earlier version while retaining a simple design method and a compact layout, and requires no post-fabrication tuning. Results of a three-pole ten-channel channelizer covering from 182 MHz to 1.13 GHz with 17.5% bandwidth channels and 1.1-dB insertion loss are presented, and agree well with theory. A discussion of the power handling of planar channelizers is also presented.
引用
收藏
页码:1675 / 1683
页数:9
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