Title :
Optical control of beam steering planar phased array on ferrite substrate
Author :
Das, N. ; Ray, A.K.
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Univ. Coll. of Eng., Burla, India
Abstract :
A novel technique is presented to scan a beam of a phased antenna array through use of time delays instead of phase shifts provided by a nonlinear transmission line coupled to elements of the array. A coplanar transmission line loaded with varactor diodes when subjected to varied optical illumination offers bias dependent wide range time delays to the elements of the array. This technique has proved to have a special application potential in case of beam steering by ferrite based microstrip antenna arrays
Keywords :
antenna phased arrays; beam steering; coupled transmission lines; delays; ferrite devices; optical control; planar antenna arrays; scanning antennas; varactors; beam steering planar phased array; coplanar transmission line; ferrite substrate; loaded transmission line; microstrip antenna arrays; nonlinear transmission line; optical control; optical illumination; time delays; varactor diodes; Antenna arrays; Beam steering; Coplanar transmission lines; Delay effects; Ferrites; Microstrip antenna arrays; Microstrip antennas; Optical arrays; Optical control; Phased arrays;
Conference_Titel :
TENCON '98. 1998 IEEE Region 10 International Conference on Global Connectivity in Energy, Computer, Communication and Control
Conference_Location :
New Delhi
Print_ISBN :
0-7803-4886-9
DOI :
10.1109/TENCON.1998.798136
