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A novel coplanar waveguide series stub matching structure for a broadband amplifier
Author(s) -
Chiou HwannKaeo,
Chang ChiYang,
Lin HaoHsiung
Publication year - 1995
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650100515
Subject(s) - stub (electronics) , coplanar waveguide , amplifier , return loss , broadband , center frequency , bandwidth (computing) , electronic engineering , band pass filter , electrical engineering , engineering , materials science , physics , telecommunications , microwave , antenna (radio)
We report a novel series stub matching structure for broadband amplifiers. In this design, the series open stub is utilized to provide both rf matching and dc blocking for the amplifier. Based on coplanar waveguide (CPW) transmission lines, the amplifier is realized. Excellent bandpass response of a 7.5‐dB gain with ±0.7‐dB flatness and a 8‐dB return loss are obtained over a 70% bandwidth with a center frequency of 9 GHz. © 1995 John Wiley & Sons, Inc.