Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1998-05-29
2000-08-29
Pascal, Robert
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333206, 333207, 333223, 333134, H01P 120, H01P 1213, H01P 1202
Patent
active
061114820
ABSTRACT:
A dielectric resonator 5 is electrically connected to an input terminal 1 through a coupling capacitor C1. A dielectric resonator 6 is electrically connected to an output terminal 2 through a coupling capacitor C3. The dielectric resonators 5 and 6 are electrically connected to each other through a coupling capacitor C2. A voltage control terminal 3 is electrically connected to the cathode of a variable-capacitance diode D1 and to one end of the coupling capacitor C1 through a choke coil L1. The anode of the variable-capacitance diode D1 is electrically connected to the dielectric resonator 6. That is, the variable-capacitance diode D1 comprises a path interconnecting at least two of said dielectric resonators in a filter 15.
REFERENCES:
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patent: 5392011 (1995-02-01), Li
patent: 5495215 (1996-02-01), Newell et al.
patent: 5502422 (1996-03-01), Newell et al.
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European Search Report dated Sep 2, 1998.
Murata Manufacturing Co. Ltd.
Pascal Robert
Summons Barbara
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