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Antenna-Coupled Tunnel Diodes For Dual-Band Millimeter-Wave/Infrared F, Mohamed Abdel Rahman
Antenna-Coupled Tunnel Diodes For Dual-Band Millimeter-Wave/Infrared F, Mohamed Abdel Rahman
Electronic Theses and Dissertations
The infrared and millimeter-wave portions of the spectrum both have their advantages for development of imaging systems. Because of the difference in wavelengths, infrared imagers offer inherently high resolution, while millimeter-wave systems have better penetration through atmospheric aerosols such as fog and smoke. Shared-aperture imaging systems employing a common focal-plane array that responds to both wavebands are desirable from the viewpoint of overall size and weight. We have developed antenna-coupled sensors that respond simultaneously at 30 THz and at 94 GHz, utilizing electron-beam lithography. Slot-antenna designs were found to be particularly suitable for coupling radiation into metal-oxide-metal (MOM) tunnel diodes …