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
Tipologia del documento
Documento relativo ad un convegno o altro evento (Atto)
Autori
AutoreAffiliazioneORCID
Detratti, Marco
Chuan, Jeffrey
Pascual, Juan Pablo
García, José Luis
Cabo, Javier
Settori scientifico-disciplinari
DOI
Data di deposito
17 Giu 2004
Ultima modifica
17 Feb 2016 13:51
URI

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