Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...
Reexamination Certificate
2005-12-27
2005-12-27
Lee, Benny T. (Department: 2817)
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
High frequency waveguides, resonators, electrical networks,...
C333S0990MP, C333S204000, C333S219000, C505S700000, C505S701000
Reexamination Certificate
active
06980841
ABSTRACT:
A resonator is formed by forming a microstrip line having an electrical length corresponding to a λ/2 wavelength on a dielectric substrate, forming both side portions of the microstrip line from the center thereof into spiral shapes, making the orientations of the spirals opposite each other, making outer-side portions of the spiral shapes on both sides, inclusive of the central portion of the microstrip line, linear in shape overall, and making linear in shape a portion of prescribed range from the end portion of each spiral shape.
REFERENCES:
patent: 5066933 (1991-11-01), Komeda
patent: 6108569 (2000-08-01), Shen
patent: 6522217 (2003-02-01), Shen
patent: 2001-77609 (2001-03-01), None
patent: WO 00/52782 (2000-09-01), None
C.K. Ong High-Temperature Superconducting Bandpass Spiral Filter, IEEE Microwave and Guided Wave Letters, vol. 9, No. 10, Oct. 1999 pp. 407-409.
International Preliminary Examination Report dated Jul. 24, 2002.
Akasegawa Akihiko
Kai Manabu
Nakanishi Teru
Yamanaka Kazunori
Fujitsu Limited
Katten Muchin Roseman LLP
Lee Benny T.
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