Open AccessDC-to-135 GHz and 15-to-135 GHz SPDT traveling wave switches using FET-integrated CPW line structure
Author(s) -
Zuo-Min Tsai,
Mei-Chao Yeh,
Ming-Fong Lei,
Hong-Yeh Chang,
Chin-Shen Lin,
Huei Wang
Publication year - 2005
Publication title -
ieee mtt-s international microwave symposium digest, 2005.
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.492
H-Index - 72
eISSN - 2576-7216
pISSN - 0149-645X
ISBN - 0-7803-8845-3
DOI - 10.1109/mwsym.2005.1516945
Subject(s) - components, circuits, devices and systems , engineered materials, dielectrics and plasmas , fields, waves and electromagnetics , aerospace , communication, networking and broadcast technologies , photonics and electrooptics
High operation frequency SPST and SPDT switches based on commercial 0.15-/spl mu/m GaAs pHEMT are developed. A novel integrated CPW line structure, which integrates the device, signal line and ground into the CPW line structure, is proposed. By using this structure, the limitation of the traveling wave switch caused by the parasitic inductance between the device to signal and ground in the conventional microstrip line designs can be removed. From the measurement results, high operation frequency of 135 GHz is achieved. The SPST switch achieves less then 5 dB insertion loss from DC to 135 GHz. The SPDT switch achieves less than 6 dB insertion loss from 15 GHz to 135 GHz. This switch has the highest operation frequency among the reported traveling wave switches.
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