Range demonstration of a reconfigurable fiber-optic time-steered 2D transmit beamformer

Author

Tulchinsky, David A. ; Matthews, Paul J.

Author_Institution

Div. of Opt. Sci., Naval Res. Lab., Washington, DC, USA

fYear

2000

fDate

2000

Firstpage

13

Lastpage

16

Abstract

We present the first range demonstration of a 2-D, true-time delay, transmit beamformer based on the technique that produces 2-D steering by dynamically reassigning the output of a 1-D beamformer onto the input plane of a 2-D antenna array. Anechoic chamber testing of the reconfigurable beamformer, demonstrates squint-free steering to ±45° across the 6 to 18 GHz band in the azimuth and elevation directions and to (±30° az, ±30° el) in the inter-cardinal ±45° directions

Keywords

antenna radiation patterns; array signal processing; beam steering; microwave antenna arrays; microwave photonics; optical control; optical fibres; transmitting antennas; 2D antenna array; 2D steering; 6 to 18 GHz; anechoic chamber testing; range demonstration; reconfigurable fiber-optic beamformer; time-steered 2D transmit beamformer; true-time delay; Antenna arrays; Optical arrays; Optical attenuators; Optical interconnections; Optical interferometry; Optical losses; Optical modulation; Optical noise; Semiconductor laser arrays; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics, 2000. MWP 2000. International Topical Meeting on

Conference_Location

Oxford

Print_ISBN

0-7803-6455-4

Type

conf

DOI

10.1109/MWP.2000.889773

Filename

889773