Search Results - "Kolias, N. J."
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Three-dimensional FDTD analysis of quasi-optical arrays using Floquet boundary conditions and Berenger's PML
Published in IEEE microwave and guided wave letters (01-03-1996)“…Infinite periodic grid structures excited by normally incident beams are analyzed using finite-difference time-domain (FDTD), with Berenger's PML (perfectly…”
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Journal Article -
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A microstrip-based unit cell for quasi-optical amplifier arrays
Published in IEEE microwave and guided wave letters (01-09-1993)“…A microwave scale model of an amplifying element suitable for millimeter-wave quasi-optical arrays is presented. Power is guided into the amplifier by short…”
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Journal Article -
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A monopole-probe-based quasi-optical amplifier array
Published in IEEE transactions on microwave theory and techniques (01-08-1997)“…A quasi-optical amplifier array designed for Ku-band operation is presented. Orthogonal monopole-probe antennas are used to couple the power into, and out…”
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Journal Article -
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Thermal management for high-power active amplifier arrays
Published in IEEE transactions on microwave theory and techniques (01-06-1996)“…Much of the active array work reported to date has been directed toward the demonstration of prototypes at low-power levels. Analysis results presented here…”
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Journal Article -
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GaN technology for microwave and millimeter wave applications
Published in 2010 IEEE MTT-S International Microwave Symposium (01-05-2010)“…After many years of development to improve the material and devices, GaN technology is now in production and poised to revolutionize many of today's Radar and…”
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Conference Proceeding
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A microstrip-based quasi-optical polarization rotator array
Published in Proceedings of 1995 IEEE MTT-S International Microwave Symposium (1995)“…A low-loss quasi-optical Ka-band polarization rotator array with 18% bandwidth has been designed and tested. Each cell of the array consists of a pair of input…”
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Conference Proceeding -
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High power quasi-optical sources for millimeter-wave base-station applications
Published in GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium. 18th Annual Technical Digest 1996 (1996)“…Millimeter-wave radios are becoming an increasingly competitive alternative to traditional twisted-pair, cable, and fiber technologies. New spectrum bands are…”
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Conference Proceeding -
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Tunable, micromachined parallel-plate transmission lines
Published in Proceedings IEEE/Cornell Conference on Advanced Concepts in High Speed Semiconductor Devices and Circuits (1995)“…We have fabricated for the first time cantilevered, tunable, out of the plane transmission lines and demonstrated the active change of impedance levels using…”
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Conference Proceeding