E/D pHEMT Multi Frequency Generator GaAs MMIC for Aerospace Applications

Detratti, Marco ; Chuan, Jeffrey ; Pascual, Juan Pablo ; García, José Luis ; Cabo, Javier (2003) E/D pHEMT Multi Frequency Generator GaAs MMIC for Aerospace Applications. In: Gallium Arsenide applications symposium. GAAS 2003, 6-10 October 2003, Munich.
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Abstract

This paper presents the design and performance of a multi frequency generator MMIC to be used in transmit/receive modules for S band transponders. The technology used is a European commercial Enhancement/Depletion (E/D)pHEMT process,compatible with low noise reception.Quasi-monolithic Voltage Controlled Oscillator (VCO),divide-by-four digital frequency divider,active frequency multiplier-by-three and relative power dividers and buffers have been integrated into a single chip to generate all the system frequencies in a flexible architecture. Measured phase noise of the VCO depends on the external resonator and varactor used.Values of –105dBc/Hz@100KHz have been measured with external high Q resonator which is comparable to best performance reported of GaAs based VCOs.The frequency divider by four has an operating window from 30 MHz to >4GHz and an output power of more than 4 dBm.Multiplier by three provides more than 5 dBm in each of the two outputs with adjustable level of harmonics.

Abstract
Document type
Conference or Workshop Item (Paper)
Creators
CreatorsAffiliationORCID
Detratti, Marco
Chuan, Jeffrey
Pascual, Juan Pablo
García, José Luis
Cabo, Javier
Subjects
DOI
Deposit date
17 Jun 2004
Last modified
17 Feb 2016 13:51
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