DocumentCode :
2138120
Title :
A 23 GHz Baseband HBT Distributed Amplifier for Optical Communication Systems
Author :
Iqbal, A. ; Darwazeh, I.Z.
Author_Institution :
Department of Electrical Engineering and Electronics, UTMIST, P. O. Box 88, Manchester, M60 1QD, U. K. Tel: +44 (0)161-200-4747, Fax: +44 (0)161-200-4770, E-mail: iqbala@fs4.ee.umist.ac.uk
Volume :
1
fYear :
1998
fDate :
Oct. 1998
Firstpage :
6
Lastpage :
11
Abstract :
This paper reports on a practical HBT distributed amplifier MMIC suitable for optical receiver applications. The circuit topology is based upon application of a novel technique which allows baseband operation in conjunction with dc bias stabiliastion and does not consume a large amount of chip area. 2×2 ¿m2 single emitter finger InGaP/GaAs HBTs with fT = 60 GHz and ßdc ¿ 100 have been employed. Simulation results show a bandwidth extending from near- dc to 23 GHz and an S21 gain of 11±1 dB at midband. The amplifier has a transimpedance gain of 45±1 dB¿ and a group delay variation of ±30 ps across the passband. Eye diagram simulations indicate its potential for handling data rates of up to 30 Gbit/s when employed as an optical receiver preamplifier.
Keywords :
Bandwidth; Baseband; Circuit topology; Distributed amplifiers; Fingers; Gallium arsenide; Heterojunction bipolar transistors; MMICs; Optical fiber communication; Optical receivers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference, 1998. 28th European
Conference_Location :
Amsterdam, Netherlands
Type :
conf
DOI :
10.1109/EUMA.1998.338083
Filename :
4139039
Link To Document :
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