Accession Number : ADA332693
Title : Second Generation Quasi-Optical Combiners
Descriptive Note : Final rept 15 Apr 94-15 Apr 97
Corporate Author : CORNELL UNIV ITHACA NY SCHOOL OF ELECTRICAL ENGINEERING
Personal Author(s) : Compton, Richard C. ; Wright, Warren
PDF Url : ADA332693
Report Date : 05 SEP 1997
Pagination or Media Count : 26
Abstract : Millimeter-wave quasi-optical power combining schemes employing new and innovative architectures have been investigated with the objectives of building efficient arrays and addressing the specific shortcomings encountered during development. The importance of broadband wireless applications has been recognized through the implementation of array modulation schemes, taking into consideration noise, linearity and other relevant issues. Novel quadrature phase locked loop techniques for generating QPSK, 16-QAM and high order QAM modulation schemes have been developed. Omni-directional arrays using modified Vivaldi antennas, a monopole based Ku-band amplifier array with a gain of 5.4 dB, a Fabry-Perot resonator coupled oscillator array, an inclined plane horn antenna array and three-dimensional grating array structures were investigated.
Descriptors : *OPTICAL PROCESSING, ARRAYS, WAVEGUIDES, CAVITIES, THREE DIMENSIONAL, PLANAR STRUCTURES, FABRY PEROT INTERFEROMETERS, ANTENNAS, CIRCUITS, OPTICAL STORAGE, APERTURES, SOLID STATE ELECTRONICS, OMNIDIRECTIONAL.
Subject Categories : Electrical and Electronic Equipment
Electrooptical and Optoelectronic Devices
Electricity and Magnetism
Distribution Statement : APPROVED FOR PUBLIC RELEASE