Antenna and road side unit RSU
An antenna and feeder technology, applied in the field of antennas and RSUs, can solve problems such as high cost and complex feeder network
Active Publication Date: 2020-05-19
BEIJING WANJI TECH
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- Application Information
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Problems solved by technology
[0005] The embodiment of the present invention provides an antenna and a roadside unit RSU, so as to at least solve the problems in the related art that the microstrip array antenna used by the roadside unit is often costly and the feeding network is complicated.
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[0028] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0029] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the embodiments of the application described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may inc...
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The invention provides an antenna which comprises a first dielectric shell, a first metal layer, a second metal layer, a second dielectric substrate and a third metal layer, wherein the first dielectric shell is used for covering the antenna; the first metal layer is printed on the lower surface of the first dielectric shell; the second metal layer is printed on the upper surface of the second dielectric substrate; the second dielectric substrate is located below the first dielectric shell and serves as a radiation substrate of the antenna; the third metal layer is printed on the lower surfaceof the second dielectric substrate and is used as a radiation floor of the antenna; and the second dielectric substrate is positioned below the first dielectric shell in parallel, an air layer is arranged between the second dielectric substrate and the first dielectric shell, and the air layer is positioned between the first metal layer and the second metal layer. With application of the technical scheme, the problems of high cost, complex feed network and the like of a microstrip array antenna form adopted by the road side unit are solved.
Description
technical field [0001] The present invention relates to the communication field, in particular to an antenna and a road side unit (RSU). Background technique [0002] In recent years, the rapid development of electronic information technology has promoted the continuous upgrading of intelligent transportation technology, the representative of which is the Electronic Toll Collection (ETC) system. The system uses dedicated short-range wireless communication between the on-board electronic tag (On Board Unit, OBU) installed on the front windshield of the vehicle and the road-side unit (Road-Side Unit, RSU) installed on the ETC lane of the high-speed toll station. , to realize the automatic toll collection of vehicles at the entrance and exit of highways, parking lots, etc., which improves the efficiency of toll collection, effectively alleviates the problem of traffic congestion in densely populated places, and gradually replaces manual toll collection, becoming the mainstream ...
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Login to View More IPC IPC(8): G07B15/06H01Q1/38H01Q1/48H01Q1/50H01Q9/04
CPCG07B15/063H01Q1/38H01Q1/48H01Q1/50H01Q9/0492Y02D30/70
Inventor 张磊杨帆宁丹张志彬
Owner BEIJING WANJI TECH