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Characterization of Average Power Handling Capability of Bandpass Filters Using Planar Half-Wavelength Microstrip Resonators

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5 Author(s)
Lin-Sheng Wu ; Center for Microwave & RF Technol. (CMRFT), Shanghai Jiao Tong Univ., Shanghai, China ; Xi-Lang Zhou ; Wen-Yan Yin ; Min Tang
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Several closed-form equations are obtained for characterizing the average power handling capability (APHC) of bandpass filters (BPFs) using planar half-wavelength open-circuited microstrip resonators. It is found that the temperature rise (TR) of the BPF is the product of two terms corresponding to the single microstrip resonator and the filter, respectively. The APHC of an eighth-order open-loop BPF is determined numerically, with good agreements obtained between its maximum TRs calculated using our model and 3-D-FEM software.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:19 ,  Issue: 11 )