Title :
A four channel angle of arrival detector using optical downconversion
Author :
Biernacki, P.D. ; Madara, R. ; Nichols, L.T. ; Ward, A. ; Mathews, P.J.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
A fiber-optic system for microwave angle of arrival measurements is demonstrated in an anechoic chamber for the first time. The system consists of a four-channel optical downconverter capable of processing received signals from 2-18 GHz. Direction resolution is determined by the antenna spacing, and at 10 GHz is spatially better than 0.1.
Keywords :
Mach-Zehnder interferometers; anechoic chambers (electromagnetic); direction-of-arrival estimation; microwave measurement; optical frequency conversion; optical modulation; 2 to 18 GHz; anechoic chamber; angle of arrival detector; antenna spacing; direction resolution; fiber-optic system; microwave measurements; optical downconversion; received signals; Anechoic chambers; Antenna measurements; Goniometers; Microwave measurements; Optical detectors; Optical fibers; Signal processing; Signal resolution; Spatial resolution; Time measurement;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779528
