Novel push-pull integrated antenna transmitter front-end

Author

Deal, W.R. ; Radisic, Vesna ; Qian, Yongxi ; Itoh, Tatsuo

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

8

Issue

11

fYear

1998

fDate

11/1/1998 12:00:00 AM

Firstpage

405

Lastpage

407

Abstract

A new integrated antenna power amplifier architecture is investigated. In this topology, a multifeed patch antenna is used as the tuned load of a class-B push-pull amplifier in such a manner that the fundamental radiates efficiently and higher harmonics are suppressed. This eliminates the necessity of using a second hybrid at the output of the amplifier and results in an extremely compact class of push-pull front end with lower associated circuit losses. Measured data shows that the power-added efficiency of the amplifier is greater than 55%, indicating that this new approach works as expected

Keywords

UHF antennas; UHF integrated circuits; UHF power amplifiers; antenna feeds; microstrip antennas; power combiners; radio transmitters; 2.5 GHz; class-B push-pull amplifier; integrated antenna transmitter front-end; multifeed patch antenna; power amplifier architecture; tuned load; Circuits; Feeds; Frequency; Loaded antennas; Patch antennas; Power amplifiers; Power generation; Power harmonic filters; Transmitters; Transmitting antennas;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.736262

Filename

736262