A novel tuning technique for RF phase arrays using fully-integrated monolithic ac-coupled 1-d VCO network

J. Lopez, D. Y.C. Lie, J. Cothern, J. Neffand, B. K. Meadow

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

An integrated circuit design and analysis of a fully monolithic 1-Dimensional (1-D) AC-coupled Voltage-Controlled-Oscillators (VCOs) network for potential applications on phase array antennas is presented. This fully monolithic RF VCO array integrates inductors with on-chip bias current sources and contains an odd number of VCOs AC-coupled through switchable resistor arrays. Our design can control the phasing of this on-chip VCO-array by means of tuning the edge elements and/or by varying the coupling strength via different resistor values. SPICE simulation shows promising results allowing phase and amplitude configurations across the array offering high directivity and a possible element-to-element phase tuning arrangement that can be achieved by simply manipulating the on-chip coupling network with edge VCOs tuning. Moreover, simulation data shows that these conditions allow a ∼±20° coverage from broadside without the need for phase shifters or additional circuitry complexity. This AC-coupled 1-D VCO array, therefore, shows great potential for RF active antennas applications to perform wide angle beam steering for the highly used S-band [1].

Original languageEnglish
Title of host publication2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success
DOIs
StatePublished - 2008
Event2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success - Washington, DC, United States
Duration: Nov 17 2008Nov 19 2008

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Conference

Conference2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success
CountryUnited States
CityWashington, DC
Period11/17/0811/19/08

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