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IEEE Transactions on Microwave Theory and Techniques
Volume 48 Number 3, March 2000

Table of Contents for this issue

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Two-Branch Microwave Channelized Active Bandpass Filters

Christen Rauscher Fellow, IEEE

Page 437.

Abstract:

The realization of small highly selective microwave filters has emerged as a prominent issue in the design of miniaturized high-frequency systems. In this paper, a new way to implement channelized active bandpass filters is presented that deals with the impasse. The concept involves a two-branch configuration, which yields filter circuits that are more compact and offer lower noise figures than earlier three-branch versions, while still retaining all the advantages of channelized feedforward operation. The practicability of the technique is demonstrated with two 10-GHz bandpass filters of different design, whose assessed performance characteristics include signal distortion and noise properties.

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