SET SUBSTRATE MOUNTED WITH SMALL-SIZED ANTENNA

PROBLEM TO BE SOLVED: To provide an antenna to be built in a device protected from an electromagnetic influence on near electronic circuits by transmitting inverse-phase signals to each other so as to generate null points, while arranging the antenna of comparable performance, when using it as an an...

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Bibliographic Details
Main Author FUJIMAKI ISAO
Format Patent
LanguageEnglish
Published 12.04.2007
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Summary:PROBLEM TO BE SOLVED: To provide an antenna to be built in a device protected from an electromagnetic influence on near electronic circuits by transmitting inverse-phase signals to each other so as to generate null points, while arranging the antenna of comparable performance, when using it as an antenna for transmission. SOLUTION: In the substrate mounted with a small-sized antenna, the small-sized antenna and electronic circuitry are mounted in proximity to each other. The antenna output terminal of the electronic circuitry is connected to the input terminal of two small-sized antennas, which are disposed so that an inverse-phase side robe of the first antenna may be generated from the second antenna so as to cancel the mutual side robe. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20060092373