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Published December 1985 | Published
Book Section - Chapter Open

MM-wave dielectric ring resonators


Ring resonators fabricated by filling a rectangular cross-section groove in a polypropylene substrate with a dielectric powder exhibit Q's as high as 2400 at 94 GHz in an 8 cm diameter ring. Directional coupling from adjacent straight dielectric guides was used to form a transmission filter. Previously, we demonstrated a mm-wave dielectric channel waveguide with .09 dB/cm loss (Refs. 1,2) consisting of a rectangular groove in the surface of a plastic substrate filled with a low-loss, high dielectric constant powder. Here we describe mm-wave ring resonators made from powder-core dielectric channel waveguide.

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© 1985 IEEE.

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