Study of the impedance transformation ratio of microwave rectifier for outphasing power recycling application

Author

Defu Wang ; Junqing Guan ; Negra, Renato

Author_Institution

Dept. of High Freq. Electron., RWTH Aachen Univ., Aachen, Germany

fYear

2015

fDate

25-28 Jan. 2015

Firstpage

1

Lastpage

3

Abstract

This paper presents an analysis for the impedance transformation ratio of microwave rectifier, implemented as an energy recycling unit suitable for RF outphasing transmitters. The experimental demonstration is realised by two single-ended microwave rectifiers with different impedance transformation ratios to separately replace the power-wasting resistive load of an isolating combiner in a multilevel LINC system. The measurement results show that the implemented rectifier can improve the overall efficiency of the multilevel LINC system from original 39.5 % to 46.7 % and 44.9 % respectively, without affecting linearity.

Keywords

microwave circuits; radio transmitters; rectifiers; recycling; RF outphasing transmitters; impedance transformation ratio; isolating combiner; multilevel LINC system; outphasing power recycling application; power-wasting resistive load; single-ended microwave rectifiers; Impedance; Microwave FET integrated circuits; Microwave circuits; Microwave integrated circuits; Microwave measurement; Recycling; Microwave rectifiers; impedance transformation ratio; multilevel LINC (ML-LINC); outphasing recycling system (ORS);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Amplifiers for Wireless and Radio Applications (PAWR), 2015 IEEE Topical Conference on

Conference_Location

San Diego, CA

Type

conf

DOI

10.1109/PAWR.2015.7139212

Filename

7139212