Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2006-02-07
2006-02-07
Nguyen, Patricia (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S202000, C333S207000, C333S219100
Reexamination Certificate
active
06995636
ABSTRACT:
A small in-band-flat-group-delay type dielectric filter having low-loss characteristics with a small amplitude deviation and uniform-group-delay frequency characteristics is obtained, which enables broad-band characteristics to be obtained easily. The in-band-flat-group-delay type dielectric filter includes a plurality of dielectric coaxial resonators, a coupling circuit comprising a combination of reactive elements, with which the dielectric coaxial resonators are coupled to one another, and input/output terminals connected to ends of the coupling circuit. The dielectric coaxial resonators coupled to the input/output terminals are allowed to have a different characteristic impedance from that of the inter-stage dielectric coaxial resonators.
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High-Power GaAs FET Amplifiers, 7.3.2 Linearized Amplifiers.
Ishizaki Toshio
Nakamatsu Hiroyuki
Nakamura Toshiaki
Tachibana Minoru
Yamada Toru
Hamre Schumann Mueller & Larson P.C.
Matsushita Electric - Industrial Co., Ltd.
Nguyen Patricia
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