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Four 24.15GHz narrow beam micro-strip array antennae

A technology of microstrip array and narrow beam, applied in the direction of antenna, antenna unit combination with different polarization directions, electrical components, etc., can solve the problem of large antenna feeder loss, etc., and achieve the goal of reducing parasitic radiation, reasonable size, and reducing parasitic coupling Effect

Inactive Publication Date: 2009-09-02
邹谋炎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the example of microstrip array antenna reported in scientific literature, when the number of microstrip patches is large, the problem of excessive feeder loss on the antenna will occur, and a special microwave feeder line needs to be added to reduce the loss

Method used

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  • Four 24.15GHz narrow beam micro-strip array antennae
  • Four 24.15GHz narrow beam micro-strip array antennae
  • Four 24.15GHz narrow beam micro-strip array antennae

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Embodiment Construction

[0020] The design of several narrow-beam microstrip array antennas considers the actual market demand. 5.5 of them 0 ×6 0 The proposal of the antenna comes from the application requirements of highway overspeed management, and is used to improve the 60×70 antenna currently in use. 5.5 0 ×6 0 The size of the antenna does not expand much, but it can better meet the requirements of single-lane monitoring. In highway bayonet management, the radar is required to provide more accurate position information of the vehicle in the monitoring area, which puts forward narrower requirements for the beam width of the radar antenna. Similar requirements come from the red light management system. Based on these requirements, in order to cover most application targets without raising the price of the antenna too much, the beamwidth of the antenna is determined at 4 0 ×4.5 0 is reasonable. In the red light management system, if there are two straight lanes, the two straight lanes can sh...

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PUM

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Abstract

Four successfully designed 24.15GHz narrow beam micro-strip array antennae can be used for a speed measuring radar system for highway safety management and other radar and communication systems working in a 24 GHz frequency band. An E-face and H-face two-way shunt-feed structure is adopted; all radiating elements are evenly arranged in positions between every two shunt feeder lines; the feeder line of each radiating element extends into a patch for a certain distance and the bending process is performed to the feeder line of each radiating element. The invention adopts a design of chebyshev weighted power distribution and achieves more perfect program on the aspect of the match of the radiating elements and the feeder lines. The feeder lines have more reasonable sizes on the premise of ensuring the matching microwave power feeding. The new design lowers the spurious radiation and other spurious effects generated by antenna feeder lines, can obviously improve the antenna beam shape and lower the side lobe level, lower the feeder line loss and improve the radiation efficiency of the antennae.

Description

technical field [0001] The invention relates to the fields of electronic information and traffic safety, and proposes four successfully designed 24.15GHz narrow-beam microstrip array antennas. technical background [0002] 24.15GHz narrow beam microstrip array antenna has many application markets. Typical applications are: highway speeding management radar; highway bayonet management radar; red light management radar; automobile collision avoidance and autonomous control radar; locomotive speed radar; radar level gauge, liquid level gauge; radar and communication systems. From near millimeter wave to millimeter wave, using microstrip array antenna has a series of advantages, such as low price, high performance, thin size, easy fabrication, etc. Although some foreign research institutions and companies have shown some samples, there is no complete design method report. In the field of traffic safety, European manufacturers represented by Siemens, Bosch, and Deuta, and Amer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/24H01Q13/08
Inventor 邹谋炎
Owner 邹谋炎
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