A GaAs multi-function X-band MMIC for space-based SAR application with 7 BIT phase and amplitude control

de Boer, A. ; van der Graaf, M.W. ; de Hek, A.P. ; Tieman, T.C.B. (1998) A GaAs multi-function X-band MMIC for space-based SAR application with 7 BIT phase and amplitude control. In: Gallium Arsenide Applications Symposium. GAAS 1998, 5-6 October 1998, Amsterdam, The Netherlands.
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Abstract

The design and performance of a low power GaAs multi-function X-band MMIC for space-based synthetic aperture radar (SAR) application with 7 bit phase and amplitude control, is described. The multi-function chip (MFC) consists of switches for selection of the transmit or receive mode, a 7-bit phase shifter, a 7-bit attenuator and several amplifiers. The MFC frequency range is 9 to 11 GHz for both transmit and receive. The phase setting of the MFC is from 0° to 360° with an accuracy better than ± 3°. The gain setting range is more than 20dB with an accuracy smaller than ± 0.21 dB. The input and output return losses are better than 14 dB for all ports. The gain for transmit and receive is 3 dB. The noise figure for the receive chain is better than 4.5 dB with a third order intercept point of 13.5 dBm. The P-ldB compression point of the transmit chain is better than 14 dBm. The bias supply voltages are +5 and -5 Volts. The total power consumption of the chip is about 0.3 Watt regardless of the transmit or receive mode. The size of the MFC is 4.2 x 4.2 mm2. The integration of functions combined with the low power consumption and the excellent specifications, are making this multi-function chip extremely suitable for future high performance space-based synthetic aperture and phased-array radars.

Abstract
Document type
Conference or Workshop Item (Paper)
Creators
CreatorsAffiliationORCID
de Boer, A.
van der Graaf, M.W.
de Hek, A.P.
Tieman, T.C.B.
Subjects
DOI
Deposit date
16 Feb 2006
Last modified
17 Feb 2016 14:33
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