@inproceedings{d814c9f0d5c14df4bdd86bed7edd1698,
title = "A novel tuning technique for RF phase arrays using fully-integrated monolithic ac-coupled 1-d VCO network",
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].",
author = "J. Lopez and Lie, {D. Y.C.} and J. Cothern and J. Neffand and Meadow, {B. K.}",
year = "2008",
doi = "10.1109/MILCOM.2008.4753451",
language = "English",
isbn = "9781424426775",
series = "Proceedings - IEEE Military Communications Conference MILCOM",
booktitle = "2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success",
note = "null ; Conference date: 17-11-2008 Through 19-11-2008",
}