A High-Resolution CMOS Phase Shifter for 79 GHz Imaging Radar and Its Applications

Nakamura, Takahiro; Tanaka, Tomoyuki; Morikoshi, Nobuyuki; Uchida, S.; Kuramoto, Takafumi; Motoda, Yuji; Ota, Yoshiyuki; Hiraki, M.

doi:10.1109/tmtt.2021.3133617

Search citation statements

Order By: Relevance

Paper Sections

Select...

State-of-the-art and Proposed Vector Modulator1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, for each quadrant, only two different gains need to be controlled, so by switching the DAC that controls each gain, only two DACs are needed. This technique is commonly used to reduce the number of DACs needed [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ].…”

Section: State-of-the-art and Proposed Vector Modulatormentioning

confidence: 99%

A 17.8–20.2 GHz Compact Vector-Sum Phase Shifter in 130 nm SiGe BiCMOS Technology for LEO Gateways Receivers

Pino

Khemchandani

San-Miguel-Montesdeoca³

et al. 2023

Micromachines

View full text Add to dashboard Cite

This paper presents a novel and compact vector modulator (VM) architecture implemented in 130 nm SiGe BiCMOS technology. The design is suitable for use in receive phased arrays for the gateways of major low Earth orbit (LEO) constellations that operate in the 17.8 to 20.2 GHz frequency range. The proposed architecture uses four variable gain amplifiers (VGA) that are active at any given time and are switched to generate the four quadrants. Compared to conventional architectures, this structure is more compact and produces double the output amplitude. The design offers 6-bit phase control for 360°, and the total root mean square (RMS) phase and gain errors are 2.36° and 1.46 dB, respectively. The design occupies an area of 1309.4 μm × 1783.8 μm (including pads).

show abstract