DocumentCode :
1144254
Title :
A High-Bit Rate Ka-Band Direct Conversion 
Demodulator
Author :
Hamed, Karim W. ; Freundorfer, Alois P. ; Antar, Yahia M M ; Frank, Peter ; Sawatzky, Dave
Author_Institution :
Mimix Broadband, Inc., Houston, TX
Volume :
18
Issue :
5
fYear :
2008
fDate :
5/1/2008 12:00:00 AM
Firstpage :
365
Lastpage :
367
Abstract :
This letter presents a Ka-band high bit rate direct conversion QPSK demodulator. The demodulator was monolithically implemented using GalnP-GaAs HBT process. Measured results of the packaged demodulator show a conversion gain of 8 dB, LO and RF port match better than 10 dB, input 1-dB gain compression point occurring at 3 dBm, and I/Q phase and amplitude mismatch within plusmn3deg and plusmn0.5 dB, respectively. The detection performance of the developed demodulator has been examined with bit rates up to 1 Gb/s and excellent performance has been obtained.
Keywords :
III-V semiconductors; bipolar MIMIC; bipolar MMIC; demodulators; gallium compounds; indium compounds; quadrature phase shift keying; GaInP-GaAs; HBT process; Ka-band QPSK demodulator; detection performance; frequency 27 GHz to 40 GHz; gain 8 dB; high-bit rate QPSK demodulator; $QPSK$
fLanguage :
English
Journal_Title :
Microwave and Wireless Components Letters, IEEE
Publisher :
ieee
ISSN :
1531-1309
Type :
jour
DOI :
10.1109/LMWC.2008.922134
Filename :
4497877
Link To Document :
