NDLI: A Wideband GAAS 6-Bit True-Time Delay MMIC Employing On-Chip Digital Drivers

Content Provider	IEEE Xplore Digital Library
Author	Willms, John G. Ouacha, Aziz de Boer, Lex van Vliet, Frank E.
Copyright Year	2000
Description	Author affiliation: FOA Defence Research Establishment, P.O. Box 1165, SE-581 11, Linköping, Sweden (Ouacha, Aziz) \|\| TNO Physics and Electronics Laboratory, P.O. Box 96864, 2509 JG, The Hague, The Netherlands. Phone: 31.70.374.04.22, Fax: 31.70.374.06.54, Email: Willms@fel.tno.nl (Willms, John G.) \|\| TNO Physics and Electronics Laboratory, P.O. Box 96864, 2509 JG, The Hague, The Netherlands. Phone: 31.70.374.04.22, Fax: 31.70.374.06.54 (de Boer, Lex; van Vliet, Frank E.)
Abstract	This paper describes a 2-20 GHz 6-bit True-Time Delay. A total equivalent electrical length in air of 43.5 mm (145 ps) is achieved over a 2-20 GHz bandwidth. Digital drivers and a serial-to-parallel converter are integrated on the same MMIC. The ED02AH 0.2 ¿m PHEMT process from OMMIC is used. The time delay elements are realised using constant-R networks. The three smallest bits make use of a self-switched version of the constant-R networks while the 3 largest bits use a topology with single-pole double-throw (SPDT) switches and constant-R networks in the delay path. Measurement results for a typical chip are presented.
Starting Page	1
Ending Page	4
File Size	3923765
Page Count	4
File Format	PDF
DOI	10.1109/EUMA.2000.338753
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-10-02
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wideband Gallium arsenide MMICs Aperture antennas Linear antenna arrays Phased arrays Antenna arrays Delay effects Broadband antennas Radar antennas
Content Type	Text
Resource Type	Article

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