Bandpass filter, high-frequency device and communications apparatus

A bandpass filter comprising two or more resonators arranged between two input/output terminals in a laminate substrate comprising pluralities of dielectric layers; each resonator being constituted by a resonance line and a resonance capacitance connected to one end of the resonance line; capacitanc...

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Bibliographische Detailangaben
Hauptverfasser:	YAMASHITA TAKAHIRO, FUKAMACHI KEISUKE, UMEYAMA TAKAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE WAVEGUIDES
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Beschreibung
Zusammenfassung:	A bandpass filter comprising two or more resonators arranged between two input/output terminals in a laminate substrate comprising pluralities of dielectric layers; each resonator being constituted by a resonance line and a resonance capacitance connected to one end of the resonance line; capacitance electrodes forming said resonance capacitances and said resonance lines being arranged on different dielectric layers, via a planar ground electrode covering the entire structural portion of the bandpass filter when viewed in a lamination direction; and in each of the resonators connected to said two input/output terminals, the junctions of said input/output terminals to said paths between said resonance lines and said resonance capacitances being closer to said resonance capacitances than said resonance lines in a lamination direction.