Titre du document / Document title

Polymeric waveguide circuits for true time delay (TTD) in phased array antennas

Auteur(s) / Author(s)

FOSHEE James J. ; SUNING TANG ; ZAN SHI ; REED Mark ; LILLY James ; HUMEN Andy ; CHEN Ray T. ;

Résumé / Abstract

This paper describes a novel compact detector-switched polymeric waveguide true-time-delay (TTD) module for application in a wideband (18-26 GHz) phased array antenna. The use of photolithographically defined ultra-low-loss polymeric waveguide delay lines provides an attractive solution for achieving the necessary delay time over tens of nsec with ultra fine resolution of less than 1 ps. The two-dimensionally distributed waveguide grating couplers tap the optically encoded microwave signal, propagating along the polymeric channel waveguide, to high-speed photodetectors. Each photodetector is independently switched on and off to select the appropriate delay time. The optically encoded microwave signals are obtained by using a semiconductor-laser-based optical heterodyne technique. Such a monolithic integrated module could reduce the cost associated with optoelectronic packaging and also reduce the system complexity. This paper provides a description of the ongoing research activities in the development and integration of advanced polymeric circuits and packaging as a key building block of the next generation wide-bandwidth phased-array antenna system.

Revue / Journal Title

Proceedings of SPIE, the International Society for Optical Engineering   ISSN 0277-786X   CODEN PSISDG 

Source / Source

2000, vol. 4225, pp. 392-400 [9 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, ETATS-UNIS  (1981) (Revue)

Localisation / Location

INIST-CNRS, Cote INIST : 21760, 35400013481552.0860