Antennas with Fast Beam Steering for High Spectral Efficiency in Broadband Cellular Systems

Author

Andersson, M. ; Goransson, B. ; Skarin, I. ; From, K. ; Cheng, S. ; Ojefors, E. ; Hallbjorner, P. ; Manholm, L. ; Rydberg, A.

Author_Institution

Ericsson AB, Goteborg

fYear

2006

fDate

10-12 Sept. 2006

Firstpage

12

Lastpage

15

Abstract

New mobile broadband high bit rate services will require significantly better spectral efficiency than traditional mobile voice and low bit rate services to reach a mass market. Radio base station antennas with fast beam steering in elevation and/or azimuth can significantly improve the carrier to interference ratio and hence the spectral efficiency. The carrier to interference ratio improvement of using fast beam steering in elevation is estimated using a two cell model. Electrically steerable base station antennas suitable for fast beam steering have been designed and built. The antennas are travelling wave microstrip patch arrays with varactor diode based phase shifters between the elements. The phase shifters are chosen to have very fast response time to allow beam steering on a per time slot basis

Keywords

array signal processing; broadband antennas; cellular radio; microstrip antenna arrays; mobile antennas; phase shifters; varactors; beam steering; broadband cellular system; phase shifter; radio base station antenna; traveling wave microstrip patch array; varactor diode; Azimuth; Base stations; Beam steering; Bit rate; Broadband antennas; Interference; Microstrip antenna arrays; Microstrip antennas; Phase shifters; Phased arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology, 2006. The 9th European Conference on

Conference_Location

Manchester

Print_ISBN

2-9600551-5-2

Type

conf

DOI

10.1109/ECWT.2006.280422

Filename

4057425