RADOME FOR ON-VEHICLE RADAR DEVICE

• Main Authors: FURUBAYASHI HIROYUKI, TAKAKUSAKI MAKOTO, IKEMASU RYUHO, YAMAMOTO SHINPEI
• Format: Patent
• Language: English; Japanese
• Published: 10.09.2020
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PERFORMING OPERATIONS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR; TESTING; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide a radome for an on-vehicle radar device, which enables the achievement of an electromagnetic wave permeability required as a radome, and allows satisfactory snow melting with a high heater performance.SOLUTION: A radome 1 for on-vehicle radar comprises a heater line 3 wired so that its line segments are spaced apart from and in parallel with one another in a plane direction of an electromagnetic wave permeable base material. The line pitch d of the line segments of heater line 3 arrayed in parallel in an electromagnetic wave-transmitting region R of the base material is set to be 0.2-2.5 times a wavelength of an electromagnetic wave of a radar of an on-vehicle radar, and the plane occupancy rate of the line segments of the heater line 3 arrayed in parallel in the electromagnetic wave-transmitting region R of the base material is set to be over 10% to 35%.SELECTED DRAWING: Figure 1 【課題】レドームとして必要な電磁波の透過性を得ることができると共に、高いヒーター性能による良好な融雪を行うことができる車載レーダー装置用レドームを提供する。【解決手段】電磁波透過性の基材の面方向に離間して並列するように配線されるヒーター線３を備え、基材の電磁波透過領域Ｒで並列するヒーター線３の線ピッチｄが車載レーダー装置のレーダーの電磁波の波長の０．２〜２．５倍に設定されていると共に、基材の電磁波透過領域Ｒで並列するヒーター線３の面占有率が１０％超〜３５％に設定されている車載レーダー装置用レドーム１。【選択図】図１