Title :
Integrated optic RF phase shifter for continuous beam steering at 1-1200 MHz
Author :
Mitchell, A. ; Ghorbani, K. ; Austin, M. ; Waterhouse, R.
Author_Institution :
Dept. of Commun. & Electron. Eng., R. Melbourne Inst. of Technol., Vic., Australia
Abstract :
A novel integrated optical RF phase shifter comprising a variable directional coupler and integrated feedback loop is demonstrated. RF phase shifts in the range 37/spl deg/-91/spl deg/ at 1.2 GHz can be continuously selected via a DC bias. The phase shifter scales linearly with frequency and thus may be applied to broadband antenna array phasing.
Keywords :
antenna phased arrays; array signal processing; integrated optics; optical directional couplers; optical feedback; optical phase shifters; 1 to 1200 MHz; DC bias; RF phase shifter; broadband antenna array phasing; continuous beam steering; feedback loop; integrated optics; variable directional coupler; Beam steering; Broadband antennas; Directional couplers; Feedback loop; Integrated optics; Linear antenna arrays; Optical feedback; Phase shifters; Phased arrays; Radio frequency;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.863279
