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A Ku -Band High- Q Tunable Filter With Stable Tuning Response

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4 Author(s)
Yassini, B. ; COM DEV Int. Ltd., Cambridge, ON, Canada ; Ming Yu ; Smith, D. ; Kellett, S.

A Ku-band tunable filter with a very stable notch level and in-band RF performance is presented in this paper. A new coupling iris configuration for stable RF performance over the tuning range is realized. The filter employs two dual-mode TE113 tunable cavity resonators with a set of flexible bellows. A tuning range of more than 500 MHz at 12 GHz while maintaining a high Q is demonstrated using the introduced resonator. Design techniques, including an RF-mechanical tradeoff analysis, are detailed and addressed.

Published in:
Microwave Theory and Techniques, IEEE Transactions on  (Volume:57 ,  Issue: 12 )

Date of Publication: Dec. 2009

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