Premium
A 2‐ to 12‐GHz 65‐nm transmit/receive CMOS DP8T switching matrix for ultra‐wideband antenna arrays
Author(s) -
Azhari Afreen,
Kikkawa Takamaro
Publication year - 2019
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2641
Subject(s) - cmos , wideband , radar , electrical engineering , antenna (radio) , electronic engineering , materials science , physics , engineering , optoelectronics , telecommunications
Summary An ultra‐wideband 2‐ to 12‐GHz transmit/receive (T/R) double‐pole–eight‐throw (DP8T) switching matrix is developed with a 65‐nm complementary metal oxide semiconductor (CMOS) process for a radar‐based breast cancer detection system. The measured average insertion losses are 5.2, 7, and 10.6 dB at 2, 6, and 12 GHz, respectively, with input and output matching bandwidths of 2 to 12 GHz and a third‐order input intercept point (IIP3) of 31 dBm at 8 GHz. The power consumption is less than 1 mW for a 1.2‐V power supply. To the best of the authors' knowledge, this is the first reported DP8T CMOS switching matrix to replace the conventional mechanical switch to control a portable radar antenna.