Miniaturized delay-time-enhanced photopolymer waveguide hologram module for phased-array antenna

Author

Xiaonan Chen ; Shi, Zhong ; Gu, Lanlan ; Howley, Brie ; Jiang, Yongqiang ; Chen, Xiaonan

Author_Institution

Microelectron. Res. Center Coll. of Eng., Univ. of Texas, Austin, TX, USA

Volume

17

Issue

10

fYear

2005

Firstpage

2182

Lastpage

2184

Abstract

Miniaturized, delay-enhanced, continuous true-time delay modules based on the holographic dispersion have been designed, fabricated, and demonstrated to provide squint-free beam steering for K-, Ku-, and X-band (8-26.5 GHz) phased-array antenna systems. A novel symmetric structure is employed in the system to achieve large delays and high packaging density. The delay modules operating in the 1550-nm region provide 130 ps of continuously tunable time delay. Far-field radiation patterns measured at 18 and 22 GHz have experimentally verified the K-band beam-scanning coverage from -45° to +45°.

Keywords

antenna phased arrays; beam steering; delays; holography; micro-optics; optical polymers; optical waveguides; 130 ps; 1550 nm; 18 GHz; 22 GHz; 8 to 26.5 GHz; far-field radiation patterns; holographic dispersion; phased-array antenna; photopolymer waveguide hologram module; squint-free beam steering; true-time delay modules; Collimators; Delay effects; Diffraction gratings; Dispersion; Electromagnetic waveguides; Holographic optical components; Holography; Optical waveguides; Packaging; Propagation delay; Far-field pattern; holographic grating dispersion; phased-array antenna; true-time delay; wavelength tuning;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.854396

Filename

1512313