Proceedings PaperQuasi-Optical Planar Mixers For Millimeter-Wave Imaging Applications
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Focal-plane sensor arrays promise to enhance the performance of quasi-optical millimeter-wave imaging systems. We have developed two kinds of quasi-optical mixers for use in such arrays. Both mixers are planar and can be fabricated on high-dielectric-constant substrates by photolithography. Mixer models tested at X-band showed conversion losses as low as 6.5 dB ± 3 dB, and preliminary tests at 35 GHz indicate these devices will work well at millimeter wavelengths.