Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2005-12-09
2008-05-06
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S7000MS, C343S872000
Reexamination Certificate
active
07369093
ABSTRACT:
An antenna for electromagnetic waves including a quantum interference filter, at least one low-temperature transistor and primary antenna structures, means for deriving an electromagnetic wave from the circuit, cooling elements and insulating means. The interference filter and the transistor act as active components, the primary antenna structure is connected up to at least one of the active components in such a way that upon incidence of an electromagnetic wave on the primary antenna structure there is present at the output of the at least one active component a conducted electromagnetic wave, and wherein at least one part of the circuit and at least one part of the primary antenna structure are thermally insulated, the thermal insulation is frequency transparent to electromagnetic waves, and the cooling elements are designed to cool down at least one part of the circuit below the transition temperature of at least one of the superconducting materials.
REFERENCES:
patent: 6363268 (2002-03-01), Martin et al.
patent: 6690162 (2004-02-01), Schopohl et al.
patent: 04-002979 (1992-01-01), None
patent: 2003-023362 (2003-01-01), None
patent: WO 99/06777 (1999-02-01), None
patent: WO 01/25805 (2001-04-01), None
Friesch Alexander
Häussler Christoph
Oppenländer Jörg
Schopohl Nils
Tomes Jörg
Burr & Brown
Chen Shih-Chao
Qest Quantenelektronische Systeme GmbH
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