Title :
Recent developments in RF front ends based upon active antenna concepts
Author :
Fredrick, Jonathan D. ; Itoh, Tatsuo
Author_Institution :
Microwave Electron. Lab., California Univ., Los Angeles, CA, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
Several developments in RF front end technology based upon the active antenna concept are presented. RF front ends utilizing active antenna concepts have shown improvements in such areas as power added efficiency, compactness, low noise figure, and increased functionality. These improvements are illustrated with a Class F power amplifier transmitter with an integrated circular patch antenna, a circularly polarized patch antenna with integrated LNAs, a 60 GHz quasi-optics self oscillating mixer, and two designs implementing the recently developed broadband quasi-Yagi antenna
Keywords :
active antennas; antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; millimetre wave mixers; power amplifiers; radar receivers; radio receivers; radio transmitters; radiofrequency amplifiers; 60 GHz; Class F power amplifier; LNA; RF front ends; active antenna concepts; broadband quasi-Yagi antenna; circular patch antenna; circularly polarized patch antenna; compactness; functionality; low noise figure; power added efficiency; quasi-optics self oscillating mixer; radar receiver; radiation patterns; Broadband amplifiers; Broadband antennas; Noise figure; Patch antennas; Polarization; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Transmitters; Transmitting antennas;
Conference_Titel :
Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2001. TELSIKS 2001. 5th International Conference on
Conference_Location :
Nis
Print_ISBN :
0-7803-7228-X
DOI :
10.1109/TELSKS.2001.954838
