Title :
A broadband receiver architecture for wireless communication systems
Author_Institution :
Intel Cellular Commun. Div., Israel
Abstract :
This paper describes a novel broadband receiver architecture for wireless communication systems. The mixing unit configuration is based on two 90° single balanced mixers, associated in anti-phase, to obtain wide-bandwidth differential IF signals. For single-ended analog front-end receivers, the terminals of each of the mixing units are connected, producing a single RF and LO signals. This is as opposed to polarimetric systems, where one LO and two RF signals are present. The broadband nature of the differential IF signals suggests that the proposed topology eliminates the need of either passive baluns, active baluns, or single to differential buffer amplifiers needed to produce 0° and 180° phase-shifted signals
Keywords :
microwave mixers; mobile radio; network topology; radio receivers; 90° single balanced mixers; LO signals; RF signals; broadband receiver architecture; differential circuit topology; microwave circuits; microwave receiver front-ends; mixing unit configuration; mobile communication systems; phase-shifted signals; polarimetric systems; radar systems; single-ended analog front-end receivers; terminals; wide-bandwidth differential IF signals; wireless communication systems; Broadband amplifiers; Circuit topology; Differential amplifiers; Heterojunctions; Impedance matching; Microwave amplifiers; RF signals; Radio frequency; Radiofrequency amplifiers; Wireless communication;
Conference_Titel :
Electrical and electronic engineers in israel, 2000. the 21st ieee convention of the
Conference_Location :
Tel-Aviv
Print_ISBN :
0-7803-5842-2
DOI :
10.1109/EEEI.2000.924339