Proof-of-concept model of a coherent optical beam-forming network

Author

Birkmayer, W.S. ; Wale, M.J.

Author_Institution

MBB Space Commun. & Propulsion Syst. Div., Optoelectron. Syst., Munchen, Germany

Volume

139

Issue

4

fYear

1992

fDate

8/1/1992 12:00:00 AM

Firstpage

301

Lastpage

304

Abstract

An optical beam-forming network with coherent optical phase shifting was designed for a telecommunications satellite with a 160-subarray phased-array antenna. The antenna generates 15 spot beams for simultaneous transmit (12.5-12.75 GHz) and receive (14-14.5 GHz) with up to twenty 33 or 72 MBit QPSK modulated carriers. The proof-of-concept model (PCM) for the transmit part is realised with two QPSK channels. The phase and amplitude weighting section can control five subarrays. The links to two subarrays are included. The optical phase shift technique offers many advantages over electronic implementation, including savings in mass and power consumption

Keywords

antenna accessories; antenna phased arrays; satellite antennas; 12.5 to 12.75 GHz; 14 to 14.5 GHz; 160-subarray phased-array antenna; QPSK modulated carriers; amplitude weighting section; coherent optical beam-forming network; coherent optical phase shifting; optical beam-forming network; phase weighting section; power consumption; proof-of-concept model; simultaneous transmit and receive; spot beams; telecommunications satellite;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings J

Publisher

iet

ISSN

0267-3932

Type

jour

Filename

156832