Transducer for high-frequency antenna coupling and related...

Communications: radio wave antennas – Antennas – Spiral or helical type

Reexamination Certificate

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C250S338400

Reexamination Certificate

active

07898498

ABSTRACT:
An apparatus includes an antenna having multiple conductive portions. The apparatus also includes a transducer electrically coupling the conductive portions of the antenna. The transducer includes a first conductive path electrically coupled to one of the conductive portions and a second conductive path electrically coupled to the first conductive path and to another of the conductive portions. The first and second conductive paths at least partially overlap along at least a substantial portion of their lengths, where the overlap occurs in a direction perpendicular to a plane of the antenna portions.

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E. N. Grossman, et al., “Terahertz Active Direct Detection Imagers”, Quantum Electrical Metrology Division, National Institute of Standards and Technology, Proceedings of SPIE, vol. 5411, Sep. 2004, p. 68-77.

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