Entity

Time filter

Source Type

Shipley, United Kingdom

Hunter I.,University of Leeds | Musonda E.,University of Leeds | Parry R.,Radio Design Ltd. | Guess M.,Radio Design Ltd. | Meng M.,University of Leeds
IEEE MTT-S International Microwave Symposium Digest | Year: 2013

A new concept for the design of power combiners based on matched directional filters is presented. The directional filters consist of individual balanced sections composed of hybrids and single resonators. Each of the sections corresponds to a pole of an all-pass function composed of the sum of S11 and S12 of the desired filter transfer function. A simple synthesis method is presented. The filter combiner has the advantage of ease of tunability because each pole is associated with a single resonator. Furthermore, no cross couplings are required to realize finite frequency transmission zeros. © 2013 IEEE.


Hunter I.C.,University of Leeds | Musonda E.,University of Leeds | Parry R.,Radio Design Ltd. | Guess M.,Radio Design Ltd. | And 3 more authors.
IET Radar, Sonar and Navigation | Year: 2014

A new concept for the design of power combiners based on matched directional filters is presented. The directional filters consist of individual balanced sections composed of hybrids and single resonators. Each of the sections corresponds to a pole of an all-pass function composed of the sum of S11 and S12 of the desired filter transfer function. A simple synthesis method is presented. The filter combiner has the advantage of ease of tunability because each pole is associated with a single resonator. Furthermore, no cross-couplings are required to realise finite frequency transmission zeros. Experimental results for a prototype device are presented. © The Institution of Engineering and Technology 2014.

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