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Average power handling capability of finite-ground thin-film microstrip lines over ultra-wide frequency ranges

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4 Author(s)
Wen-Yan Yin ; Sch. of Electron., Shanghai Jiao Tong Univ., China ; Dong, X.T. ; Junfa Mao ; Le-Wei Li

Based on the distributed parameters extracted and the thermal model proposed to calculate the rise in temperature, the average power handling capabilities (APHCs) of finite-ground thin-film microstrip lines (TFMLs) on benzocyclobutene (BCB) and polyimide films over ultra-wide frequency ranges are investigated. Numerical results are given to show the enhancement in APHCs achieved by choosing appropriate metallization conductivity and thickness, BCB thermal conductivity, and polyimide thickness etc. It is believed that the proposed approach is useful in the design of practical TFML circuits.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:15 ,  Issue: 10 )