The Design of Microwave Bandpass Filters Using Resonators With Nonuniform Q

With the exception of predistortion, most design methods for microwave filters are based on lossless prototype networks, with the effects of loss generally being considered afterwards, by analysis rather than synthesis. This paper presents new techniques, which either utilize existing losses, or add...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2006-11, Vol.54 (11), p.3914-3922
Main Authors: Guyette, A.C., Hunter, I.C., Pollard, R.D.
Format: Article
Language:English
Subjects:
Applied sciences
Band pass filters
Bandpass
Circuit properties
Design methodology
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Frequency filters
Insertion loss
loss
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwave filters
Microwave theory and techniques
Passband
Predistortion
Prototypes
Resonator filters
Transfer functions
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Summary:With the exception of predistortion, most design methods for microwave filters are based on lossless prototype networks, with the effects of loss generally being considered afterwards, by analysis rather than synthesis. This paper presents new techniques, which either utilize existing losses, or add losses, to improve the performance of microwave bandpass filters. Unlike predistortion, these new techniques result in networks with nonuniform dissipation. Experimental prototype filters have been designed and the measured results demonstrate improved performance compared with that previously reported
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2006.884627