An efficient beamforming algorithm for large-scale phased arrays with lossy digital phase shifters

Shunji Tanaka, Tomohiko Mitani, Yoshio Ebihara

Research output: Contribution to journalArticle

Abstract

An efficient beamforming algorithm for large-scale phased arrays with lossy digital phase shifters is presented. This problem, which arises in microwave power transmission from solar power satellites, is to maximize the array gain in a desired direction with the gain loss of the phase shifters taken into account. In this paper the problem is first formulated as a discrete optimization problem, which is then decomposed into element-wise subproblems by the real rotation theorem. Based on this approach, a polynomial-time algorithm to solve the problem numerically is constructed and its effectiveness is verified by numerical simulations.

Original languageEnglish
Pages (from-to)783-790
Number of pages8
JournalIEICE Transactions on Communications
VolumeE97-B
Issue number4
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes

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Phase shifters
Beamforming
Microwave power transmission
Solar power satellites
Polynomials
Computer simulation

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

An efficient beamforming algorithm for large-scale phased arrays with lossy digital phase shifters. / Tanaka, Shunji; Mitani, Tomohiko; Ebihara, Yoshio.

In: IEICE Transactions on Communications, Vol. E97-B, No. 4, 01.01.2014, p. 783-790.

Research output: Contribution to journalArticle

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