Wideband Phase-Compensated VGA with PMOS Switch in 40-nm CMOS for 120-GHz Band

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This paper presents a 120-GHz wideband phase-compensated variable gain amplifier (VGA) with a p-type metal-oxide-semiconductor (PMOS) switch using a 40-nm CMOS process. By applying a PMOS switch to the common source (CS) amplifier, the gain of the CS amplifier can be controlled by as much as 6.1 dB with 2 degrees phase variations in 15.1-GHz bandwidth ranging from 100.9 to 115 GHz. The measured gain and 3-dB bandwidth of the VGA are 19.1 dB and 33.8 GHz for high-gain state, and 13 dB and 44.2 GHz for low gain state, respectively. Meanwhile, the DC power consumption in the high-gain state is 45 mW, and the OP1dB is -2.7 dBm.
Publisher
SPRINGER
Issue Date
2021-05
Language
English
Article Type
Article
Citation

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, v.42, no.5, pp.514 - 524

ISSN
1866-6892
DOI
10.1007/s10762-021-00794-7
URI
http://hdl.handle.net/10203/286055
Appears in Collection
EE-Journal Papers(저널논문)
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