DocumentCode
516409
Title
A 1GHz Single Chip Quadrature Modulator without External Trimming
Author
Steyaert, M. ; Roovers, R.
Author_Institution
K.U.LEUVEN, Esat-Micas, Kard. Mercierlaan 94, B-3001 Leuven, Belgium.
Volume
1
fYear
1991
fDate
11-13 Sept. 1991
Firstpage
261
Lastpage
264
Abstract
A monolithic quadrature modulator is presented, using a new approach for realising on chip the 90 degree phase shifter. This phase shifting network does not need any phase adjusting to achieve the phase error specification of 3 degrees over a frequency range from 800 MHz to 1 GHz. The quadrature modulator is integrated in a 9 GHz SI bipolar process. Measurements show an image rejection of over 32 dB for the considered frequency range, consuming 24 mA from a 5 V power supply.
Keywords
Capacitors; Circuits; Energy consumption; Frequency measurement; Phase modulation; Phase shifters; Power supplies; Resistors; Semiconductor device measurement; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1991. ESSCIRC '91. Proceedings - Seventeenth European
Conference_Location
Milan, Italy
Type
conf
Filename
5468033
Link To Document