Diplexer

Provided is a diplexer with which insertion loss is lessened and enlarging of scale is kept to a minimum. This diplexer is provided with a low-band band-pass filter LBF disposed between a common input/output terminal CT and a low-band input/output terminal LT, and a high-band band-pass filter HBF di...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMAZAKI, YUUTAROU, MOTOYAMA, HIROTO, KAMINISHI, YUJI, TANIGUCHI, TETSUO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	Provided is a diplexer with which insertion loss is lessened and enlarging of scale is kept to a minimum. This diplexer is provided with a low-band band-pass filter LBF disposed between a common input/output terminal CT and a low-band input/output terminal LT, and a high-band band-pass filter HBF disposed between the common input/output terminal CT and a high-band input/output terminal HT. The low-band band-pass filter LBF is constituted from a circuit having a plurality of LC resonators LC11 to LC13, from a first stage to a final stage in order heading from the common input/output terminal CT to the low-band input/output terminal LT. The high-band band-pass filter HBF is constituted from a circuit having a plurality of LC resonators LC21 to LC24, from a first stage to a final stage in order heading from the common input/output terminal CT to the high-band input/output terminal HT. Between the common input/output terminal CT and the low-band band-pass filter LBF, a matching capacitor MC is disposed. The capac