Portable type radio equipment

In a radio equipment of portable type, the impedance of an antenna (101) is optimized by adjusting a matching circuit (102) which has the adjustment function and is connected to an antenna (101), based on a reflection phase sent back from the antenna (101), outputted from a reflection phase detector...

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Bibliographische Detailangaben
Hauptverfasser:	ODACHI,NORIAKI, MURAKAMI,YASUSHI, ISEKI,YUJI, INOUE,KAZUHIRO, ONO,NAOKO, SEKINA, SYU-ICHI, TSUJIMURA,AKIHIRO N, ITOH,TAKAYOSHI, YAMAGUCHI KEIICHI N, KAYANO,HIROYUKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS TRANSMISSION
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Beschreibung
Zusammenfassung:	In a radio equipment of portable type, the impedance of an antenna (101) is optimized by adjusting a matching circuit (102) which has the adjustment function and is connected to an antenna (101), based on a reflection phase sent back from the antenna (101), outputted from a reflection phase detector (104), and a current supplied to a transmitter-receiver (105) which generates a transmitting signal.