Reconfigurable true-time delay for wideband phased-array antennas

Yihong Chen; Kevin Wu; Feng Zhao; Gicherl Kim; Ray T. Chen

doi:10.1117/12.549229

25 June 2004 Reconfigurable true-time delay for wideband phased-array antennas

Yihong Chen, Kevin Wu, Feng Zhao, Gicherl Kim, Ray T. Chen

Proceedings Volume 5363, Emerging Optoelectronic Applications; (2004) https://doi.org/10.1117/12.549229
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

A novel reconfigurable true-time delay feed for phased-array antennas working from X to Q (8-50GHz) frequency bands is presented. The reconfigurable optical true-time delay feed, employing monolithic integration of polymer waveguide delay lines and polymeric optical switches, has great advantages in providing power efficient, lightweight, and small size features. Optical switch technique provides large delay selections enabling the module to operate in ultra-broad radar bands. Polymer waveguides with optical propagation loss of less than 0.9dB/cm were achieved at 1550nm. 2X2 thermo-optic switchs as fast as 1ms were fabricated with an excess insertion loss of 0.5 dB in the “switching state” and 1.5dB in the “non-switching state”. Reconfigurability of the true-time delay line was demonstrated through accurate time delay measurement.

Citation Download Citation

Yihong Chen, Kevin Wu, Feng Zhao, Gicherl Kim, and Ray T. Chen "Reconfigurable true-time delay for wideband phased-array antennas", Proc. SPIE 5363, Emerging Optoelectronic Applications, (25 June 2004); https://doi.org/10.1117/12.549229

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