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

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6 Author(s)
Xiaonan Chen ; Microelectron. Res. Center Coll. of Eng., Univ. of Texas, Austin, TX, USA ; Shi, Zhong ; Gu, Lanlan ; Howley, Brie
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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°.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 10 )