3-way low loss phase combiner for power amplifier sharing in 3-sector cellular networks

Author

Metz, Carsten ; Baras, Torben

Author_Institution

Bell Labs., Lucent Technol., Murray Hill, NJ, USA

Volume

1

fYear

2004

fDate

6-11 June 2004

Firstpage

61

Abstract

A low loss 3×3-way phase combiner for power amplifier load balancing in 3-sector wireless network cells is presented. Based on an air-filled coaxial double ring structure this design combines very low insertion loss with compact physical profile. Exemplary, the concept is studied for the PCS (personal communication service) transmit band from 1.91 GHz to 1.99 GHz by simulations. Measurements validate the predicted very low insertion loss of 0.05 dB, while return loss and port isolation are both better than 25 dB.

Keywords

microwave power amplifiers; mobile communication; personal communication networks; power combiners; 0.05 dB; 1.91 to 1.99 GHz; air-filled coaxial double ring structure; butler matrix; cellular networks; insertion loss; load balancing; personal communication service; phase combiner; port isolation; power amplifier sharing; return loss; wireless network cells; Butler matrix; Couplers; Intelligent networks; Land mobile radio cellular systems; Load management; Operational amplifiers; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2004 IEEE MTT-S International

ISSN

0149-645X

Print_ISBN

0-7803-8331-1

Type

conf

DOI

10.1109/MWSYM.2004.1335799

Filename

1335799