Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2006-06-30
2010-12-21
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S204000, C333S0990MP
Reexamination Certificate
active
07855620
ABSTRACT:
A filter circuit device includes a resonator unit configured with six or more resonators, the resonators being divided into a first resonator group including resonators connected in parallel and having odd-numbered resonance frequencies and a second resonator group connected to the first resonator group in parallel and including resonators connected in parallel and having even-numbered resonance frequencies, a delay unit connected between the first and second resonator groups to make a phase difference in a range of (180±30)+360×j degrees (j is a natural number) between the first and second resonator groups, a power dividing unit configured to divide a power to the resonators, and a power combining unit configured to combine outputs of the resonators of the first and second resonator groups between which the phase difference is made.
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Kabushiki Kaisha Toshiba
Lee Benny
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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