Application of quad-phase surface acoustic wave filters to power divider/combiner for RF power amplifiers

Author

Wen, J.G. ; Hashimoto, K. ; Omori, Tatsuya ; Yamaguchi, M.

Author_Institution

Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

1417

Lastpage

1420

Abstract

This paper discusses the possibility of applying quad-phase surface acoustic wave (SAW) filters to a power divider/combiner for RF power amplifiers (PAs). First, it was shown that the quad- phase SAW filter is equivalent to a quadrature hybrid with embedded balun and filter functions. Then, the device is applied for a PA configuration where four amplifiers are sandwiched in between two quad-phase SAW filters. It is shown that this configuration offers good performances comparable to those given by ideal balanced dual-fed push-pull PAs.

Keywords

power amplifiers; power combiners; power dividers; radiofrequency amplifiers; surface acoustic wave filters; RF power amplifier; SAW filter; embedded balun; power combiner; power divider; quad-phase surface acoustic wave filters; quadrature hybrid; Acoustic waves; Impedance matching; Power amplifiers; Power dividers; Power filters; Radio frequency; Radiofrequency amplifiers; SAW filters; Surface acoustic wave devices; Surface acoustic waves; Class AB power amplifier; PAE; SAW;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. APMC 2006. Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-4-902339-08-6

Electronic_ISBN

978-4-902339-11-6

Type

conf

DOI

10.1109/APMC.2006.4429672

Filename

4429672