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Design method for traffic flow detection radar antenna

A technology of traffic flow detection and radar antenna, which is applied in traffic flow detection, radio wave reflection/reradiation, measuring devices, etc., and can solve problems such as wide antenna beam width

Inactive Publication Date: 2009-03-11
邹谋炎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply put, the beamwidth of these antennas is too wide
In addition, the design of these antennas has disadvantages

Method used

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  • Design method for traffic flow detection radar antenna
  • Design method for traffic flow detection radar antenna
  • Design method for traffic flow detection radar antenna

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Embodiment Construction

[0049] The present invention adopts Figure 6 Design scheme (1) or (2) shown. In order to make the designed product suitable for most environments of traffic flow detection, the harshest conditions are usually selected for design. The design example described in this invention meets these requirements. More generally, it can be implemented as follows.

[0050] (1) Determine the main performance indicators of the detection radar. The performance indicators related to antenna design include: operating frequency; maximum road width; ability to distinguish targets at the longest distance.

[0051] The operating frequency of the radar must first be selected in accordance with the area where the radar is used and the country's regulations on wireless frequency division. If the detection radar is used in mainland China, the appropriate frequency includes two frequency bands of 10GHz-10.5GHz and 24GHz-24.25GHz. Using the 10GHz frequency band is conducive to improving the diffract...

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Abstract

The invention relates to a method for designing a detection radar antenna of road traffic vehicle flow, which is concretely embodied by a design embodiment. The invention uses an optimized demonstration method to determine the requirements for the indexes of the detection radar antenna of the road traffic vehicle flow, points out the defects of designed antennae in the prior similar radar products, and provides a basic microstrip array antenna of a shunt feed type. Accordingly, a design scheme and a method of two microstrip array antennae of a shunt feed type are provided, and a concrete design result is provided. The method provided by the invention is proved to be capable of generating the antennae more suitable for the need of a detection radar of the vehicle flow and achieving the comprehensive aim of high performance, low price and small size.

Description

technical field [0001] The invention relates to the fields of electronic information and intelligent transportation, and proposes a design method of a radar antenna for road traffic traffic flow detection. technical background [0002] Traffic flow detection has important requirements in traffic intelligent management and road planning and construction. Traditional implanted traffic detectors are being replaced by non-implanted radar detectors due to various shortcomings. Manufacturers at home and abroad have released product information in this regard. Representative traffic flow detection radars include: SmartSensor HD Model 125 produced by Wavetronix in the United States, with an operating frequency of 24-24.25 GHz and an antenna height of 3dB with a beam width of 65 0 , azimuth 3dB beamwidth 7 0 ; The RTMS radar produced by Canada EIS company, the working frequency is 10.525GHz, and the antenna height is 3dB with a beam width of 45 0 , azimuth 3dB beamwidth 15 0 . ...

Claims

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Application Information

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IPC IPC(8): G08G1/01G01S7/03G01S13/32
Inventor 邹谋炎
Owner 邹谋炎
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