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Publication Citation: AIR-BRIDGE INTEGRATED STUB FILTER FOR SUB-MILLIMETER WAVE APPLICATIONS

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Author(s): Dazhen Gu; Fernando Rodriquez-Morales; Sigfrid Yngvesson;
Title: AIR-BRIDGE INTEGRATED STUB FILTER FOR SUB-MILLIMETER WAVE APPLICATIONS
Published: June 01, 2009
Abstract: We report a coplanar waveguide notch filter with an integrated air-bridge, designed for operation at sub-millimeter wave frequencies and cryogenic temperatures. The filter is built with a planar slot- ring antenna, which is in turn loaded with a su-perconducting mixer detector. The filter is designed to have a narrow-band response with 40 dB of at-tenuation at the frequency of interest (1.56 THz). The fabrication of the micro-meter scale structure was accomplished by means of UV photo-lithography and electro-plating. The optimized microelectronic fabri-cation process produced high yield and reliability. Preliminary measurements of a sub-millimeter wave receiver based on this design showed satisfactory performance of the filter.
Citation: Microwave and Optical Technology Letters
Volume: 51
Issue: 6
Pages: pp. 1436 - 1439
Keywords: air-bridge; band-stop filter; micro-fabrication; sub-millimeter wave systems
Research Areas: Electromagnetics
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