TRANSMISSION/RECEPTION CIRCUIT AND TRANSMISSION/RECEPTION METHOD

TRANSMISSION/RECEPTION CIRCUIT AND TRANSMISSION/RECEPTION METHOD

PROBLEM TO BE SOLVED: To provide a transmission/reception circuit and a transmission/reception method which are capable of reducing the insertion loss of a circuit during hybrid operation and suitable for cost reduction, miniaturization, and the reduction of power consumption. SOLUTION: IN a transmi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: KANO HIDETO
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a transmission/reception circuit and a transmission/reception method which are capable of reducing the insertion loss of a circuit during hybrid operation and suitable for cost reduction, miniaturization, and the reduction of power consumption. SOLUTION: IN a transmission/reception circuit, an antenna switch 119 includes attenuation filters 201 to 203 for attenuating frequency bands corresponding to a plurality of reception systems, for example, a frequency band of a 800MHz band system, a frequency band of a 2GHz band system, and a GPS reception frequency component. These attenuation filters 201 to 203 are connected between a connection terminal T204 for a primary (main) antenna and a switch group SWG201 being a first switch through connection switches 204 to 206. COPYRIGHT: (C)2007,JPO&INPIT