Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/84365
Title: Wideband VGA in 0.13-μm CMOS with phase reversal for 360°vector-sum phase shifters
Authors: Zijie, H.
Mouthaan, K. 
Keywords: CMOS wideband VGA
Full 360°vector-sum phase shifter
Phase-reversible
Issue Date: 2013
Citation: Zijie, H.,Mouthaan, K. (2013). Wideband VGA in 0.13-μm CMOS with phase reversal for 360°vector-sum phase shifters. European Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMIC 2013: 8th European Microwave Integrated Circuits Conference : 272-275. ScholarBank@NUS Repository.
Abstract: A wideband phase-reversible variable gain amplifier (VGA) for application in full-360°vector-sum phase shifters is presented. The proposed VGA exhibits a continuously tunable gain with reversible phase, while only requiring a single-ended input. To realize the fully single-ended topology, a differential-to-single-ended converter with common-mode suppression at the output port is proposed. A modified three-stage Cherry-Hooper amplifier with inductive peaking is also adopted for gain flattening and output matching. To the best of our knowledge, it is the first time that the phase-reversible concept is proposed and realized in VGAs. As an example, a CMOS prototype exhibiting a phase-reversible and linear-in-magnitude controlled gain range of 18 dB, is demonstrated with only one control voltage. The measured 5-dB gain bandwidth is from 0.6 to 6.8 GHz, together with the input return loss better than 10 dB. Operating at 1.2 V, the chip consumes 12 mW and occupies 0.83 mm2, including test pads. © 2013 EuMA.
Source Title: European Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMIC 2013: 8th European Microwave Integrated Circuits Conference
URI: http://scholarbank.nus.edu.sg/handle/10635/84365
ISBN: 9782874870323
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.