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A linear tuning ring VCO for spectrum monitor receiver in cognitive radio applications

A linear tuning ring VCO for spectrum monitor receiver in cognitive radio applications
A linear tuning ring VCO for spectrum monitor receiver in cognitive radio applications
A ring oscillator is designed and implemented on standard 130nm CMOS technology for wide range frequency tuning purpose in a spectrum monitor receiver used in cognitive radio applications. The three-stage differential ring oscillator is tuned by an array of MOS varactors, which is controlled by a novel staggered voltage offset system for improved tuning linearity. The proposed ring oscillator achieves a measured tuning range from 4.85GHz to 7.15GHz, consuming 4.2mA current from a 1.2V supply voltage. The measured phase noise is -82.5 dBc/Hz at 1MHz offset from an operating frequency of 4.88GHz. The die area of the oscillator core is about 70?m×50?m.
Liang, Siwen
4c1fdaa7-e596-487d-9fd8-633b3b816c59
Redman-White, William
d5376167-c925-460f-8e9c-13bffda8e0bf
Liang, Siwen
4c1fdaa7-e596-487d-9fd8-633b3b816c59
Redman-White, William
d5376167-c925-460f-8e9c-13bffda8e0bf

Liang, Siwen and Redman-White, William (2011) A linear tuning ring VCO for spectrum monitor receiver in cognitive radio applications. 2011 European Conference on Circuit Theory and Design, Sweden. 29 - 31 Aug 2011.

Record type: Conference or Workshop Item (Paper)

Abstract

A ring oscillator is designed and implemented on standard 130nm CMOS technology for wide range frequency tuning purpose in a spectrum monitor receiver used in cognitive radio applications. The three-stage differential ring oscillator is tuned by an array of MOS varactors, which is controlled by a novel staggered voltage offset system for improved tuning linearity. The proposed ring oscillator achieves a measured tuning range from 4.85GHz to 7.15GHz, consuming 4.2mA current from a 1.2V supply voltage. The measured phase noise is -82.5 dBc/Hz at 1MHz offset from an operating frequency of 4.88GHz. The die area of the oscillator core is about 70?m×50?m.

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More information

e-pub ahead of print date: 29 August 2011
Venue - Dates: 2011 European Conference on Circuit Theory and Design, Sweden, 2011-08-29 - 2011-08-31
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 337753
URI: https://eprints.soton.ac.uk/id/eprint/337753
PURE UUID: 5b18e560-e922-493f-adb0-5d8c8ce0851f

Catalogue record

Date deposited: 02 May 2012 13:21
Last modified: 16 Jul 2019 22:06

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