Single RF Channel Digital Beamforming Multibeam Antenna Array Based on Time Sequence Phase Weighting

Author

Zhang, Jindong ; Wu, Wen ; Fang, Da-Gang

Author_Institution

Ministerial Key Lab. of JGMT, Nanjing Univ. of Sci. & Technol., Nanjing, China

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

514

Lastpage

516

Abstract

A new type of digital beamforming (DBF) multibeam antenna array is proposed. In this antenna array, the amplitude and phase distributions on the array aperture are recovered using a single radio frequency (RF) channel through time sequence phase weighting (TSPW). The distributions can then be used to produce multibeams by digital beamforming. A proof-of-concept prototype of an eight-element receiving array in JC-band has been fabricated and tested. The measured results confirm the validity and advantages of the proposed scheme.

Keywords

array signal processing; microwave antenna arrays; receiving antennas; wireless channels; TSPW; amplitude distributions; array aperture; eight-element receiving array; phase distributions; proof-of-concept prototype; single RF channel digital beamforming multibeam antenna array; single radio frequency channel; time sequence phase weighting; Antenna arrays; Antenna measurements; Apertures; Array signal processing; Arrays; Phase shifters; Radio frequency; Digital beamforming (DBF); multibeam; single RF channel; time sequence phase weighting (TSPW);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2157073

Filename

5771535