PROBLEM TO BE SOLVED: To suppress decline in the reception sensitivity of two antennas, while sharing the antenna amplifier and feeding terminals of two antennas.SOLUTION: A glass antenna 10 disposed in a window glass 1 for vehicle includes a feeding terminal 15 for connection with an antenna amplifier 3, a first antenna 20 connected with the feeding terminal 15 and having the wavelength of mean frequency set to receive a high frequency signal of first frequency band where the wavelength of mean frequency is a first wavelength, a coupling element 30 connected with the feeding terminal 15 while having a length that is set based on the length equal to 1/2 of the first wavelength multiplied by the glass compaction rate, and a second antenna 40 coupled capacitively with the coupling element 30 and the wavelength of mean frequency is set to receive a high frequency signal of second frequency band where the wavelength of mean frequency is a second wavelength.SELECTED DRAWING: Figure 2

    【課題】2つのアンテナのアンテナアンプ及び給電端子を共用しつつ2つのアンテナの受信感度が低下することを抑制する。【解決手段】車両用窓ガラス1に配設されたガラスアンテナ10は、アンテナアンプ3に接続される給電端子15と、給電端子15に接続されると共に中心周波数の波長が第1波長である第1周波数帯域の高周波信号を受信するように設定された第1アンテナ20と、第1波長の二分の一にガラス短縮率を掛けた長さに基づいて設定された長さを有して給電端子15に接続される結合素子30と、結合素子30に容量結合されると共に中心周波数の波長が第2波長である第2周波数帯域の高周波信号を受信するように設定された第2アンテナ40とを備えている。【選択図】図2


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    Title :

    GLASS ANTENNA


    Additional title:

    ガラスアンテナ


    Contributors:

    Publication date :

    2017-12-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H01Q Antennen , ANTENNAS, i.e. RADIO AERIALS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge



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