PROBLEM TO BE SOLVED: To secure an excellent reception performance both in a first frequency band and in a second frequency band that is higher than the first frequency band, while maintaining a simple pattern shape even if an area of a vehicle body opening is restricted.SOLUTION: A vehicular glass antenna 1 includes: glass 11 that is attached to the vehicle body opening; antenna element parts 13, 16, 18a and 18b which are disposed in the glass, for receiving radio waves in the first frequency band and in the second frequency band that is higher than the first frequency band; and an LC series resonance circuit 20 which is connected in the gap with a grounding point that is provided in the antenna element parts, or with a grounding line 19 that connects the grounding point and a ground of a vehicle body, has a resonance property in the frequency band and includes at least L and C.SELECTED DRAWING: Figure 1
【課題】車体開口部の面積が制限されても、単純なパターン形状で第1の周波数帯および第1の周波数帯より高い第2の周波数帯ともに良好な受信性能を確保する。【解決手段】車両用ガラスアンテナ1は、車体開口部に取り付けられるガラス11と、第1の周波数帯と、第1の周波数帯より高い第2の周波数帯の電波を受信する、ガラスに配置されるアンテナ素子部13,16.18a,18bと、アンテナ素子部に設けられた接地点、または、接地点と車体のアースとを接続する接地線19との間に接続され、第2周波数帯で共振特性を持つ、少なくともLとCとを含むLC直列共振回路20と、を含む。【選択図】図1
VEHICULAR GLASS ANTENNA
車両用ガラスアンテナ
2016-06-20
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |