Performance at 585 GHz of a Slot-Ring Antenna Coupled Niobium HEB Mixer Element for Imaging Applications

Liu, L.; Xu, Haidi; Xiao, Qun; Lichtenberger, Arthur W.; Weikie, R.M.

doi:10.1109/icimw.2005.1572510

Cited by 1 publication

(1 citation statement)

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“…The hemispherical silicon lens has a radius of 4.5 mm. Far field radiation patterns of a single element SRA mounted on the silicon lens have been calculated using the ray tracing technique of Filipovic [11] and an extension length is selected for maximum antenna directivity with a suitably high Gaussian coupling efficiency of 85% [11], [13].…”

Section: A Mixer Array Element Design and Mutual Couplingmentioning

confidence: 99%

Design, Fabrication and Characterization of a Submillimeter-Wave Niobium HEB Mixer Imaging Array Based on the “Reverse-Microscope” Concept

Liu

Xiao

et al. 2007

IEEE Trans. Appl. Supercond.

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Prototype one-dimensional (1-D) superconducting hot-electron bolometer (HEB) imaging mixer arrays with four pixels, designed for operation at 585 GHz, and based on slot-ring antennas arranged in the "reverse-microscope" configuration have been fabricated and implemented. Electromagnetic simulations with Agilent's Momentum software package have been performed to study the self-and mutual-impedances of the slot-ring antenna (SRA) array corresponding to various element spacings. Moreover, the element SRA off-axis radiation patterns (with an extended silicon lens) have been calculated using ray-tracing techniques and the imaging angular resolution has been predicted. Fabrication of the arrays and HEB elements are discussed, and measurements for a single mixer element are presented, yielding a double sideband (DSB) receiver noise temperature of approximately 650 K at 585 GHz.

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Section: A Mixer Array Element Design and Mutual Couplingmentioning

confidence: 99%