To provide a window glass for a vehicle capable of securing antenna gain of VHF band, capable of improving appearance while securing field of vision, and having effect of defogging.SOLUTION: A window glass for a vehicle includes a glass plate provided with a light shielding film on the outside of the transmission region of visible radiation, a dielectric having a first face on the side facing the glass plate and a second face on the opposite side to the first face, a planar conductor provided between the glass plate and the first face, a positive electrode for connection with the planar conductor, a negative electrode for connection with the planar conductor, a feeding electrode provided on the second face side, and a ground electrode provided on the second face side. The planar conductor generates heat when a voltage is applied between the positive and negative electrodes, the feeding electrode and the ground electrode are facing the planar conductor via the dielectric so that the planar conductor receives electromagnetic wave of at least VHF band, and in the plan view, the positive, the negative electrodes, the feeding electrode and the ground electrode are superposed on the light shielding film.SELECTED DRAWING: Figure 1
【課題】VHF帯のアンテナ利得を確保でき、見栄えの向上と視界の確保を両立でき、防曇等の効果を併せ持つ車両用窓ガラスの提供。【解決手段】遮光膜が可視光の透過領域の外側に設けられるガラス板と、前記ガラス板に対向する側の第1の面と、前記第1の面とは反対側の第2の面とを有する誘電体と、前記ガラス板と前記第1の面との間に設けられる平面状導体と、前記平面状導体に接続される正極と、前記平面状導体に接続される負極と、前記第2の面の側に設けられる給電電極と、前記第2の面の側に設けられる接地電極とを備え、前記平面状導体は、前記正極と前記負極との間に電圧を印加することによって発熱し、前記給電電極及び前記接地電極は、前記平面状導体が少なくともVHF帯の電波を受信するように、前記平面状導体に前記誘電体を介して対向し、平面視で、前記正極、前記負極、前記給電電極及び前記接地電極は、前記遮光膜と重複する、車両用窓ガラス。【選択図】図1
WINDOW GLASS FOR VEHICLE AND WINDOW GLASS DEVICE FOR VEHICLE
車両用窓ガラス及び車両用窓ガラス装置
2020-02-06
Patent
Electronic Resource
Japanese
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 / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
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