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Microstrip antenna and millimeter wave radar

A technology of microstrip antenna and antenna, which is applied in the direction of antenna, radio wave measurement system, antenna array with independent power supply, etc. It can solve the problems of large application size and unfavorable antenna miniaturization design, and achieve the best antenna radiation performance

Pending Publication Date: 2022-08-02
福思(杭州)智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to obtain the expected radiation performance of the antenna, it is necessary to set up an additional phase modulation device. At the same time, the size of the cascaded application of the power divider is relatively large, which is not conducive to the miniaturization design of the antenna.

Method used

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  • Microstrip antenna and millimeter wave radar
  • Microstrip antenna and millimeter wave radar
  • Microstrip antenna and millimeter wave radar

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0032] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in seque...

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Abstract

The invention provides a microstrip antenna and a millimeter wave radar. The microstrip antenna comprises a feed network and an antenna array, the feed network and the antenna array are arranged on the same plane of the substrate; the output ends of the feed network are connected with the input ends of the antenna array in a one-to-one correspondence manner; the feed network is provided with phase adjusting units which are connected in series, and the phase adjusting units are used for adjusting phase differences among feed signals of the output ends of the feed network; the characteristic impedance of the feed network matches the input impedance of the antenna array. According to the technical method, the phase adjusting unit is arranged, so that various requirements on a radiation pattern of the antenna array can be met by flexibly arranging the amplitude adjusting unit on the basis of miniaturization design, and better antenna radiation performance is obtained.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a microstrip antenna and a millimeter wave radar. Background technique [0002] As a device for radar system to radiate and receive electromagnetic waves, antenna plays a crucial role in the performance of radar system. Microstrip antennas are widely used in radar antennas because they are lightweight, easy to manufacture, and inexpensive. [0003] Taking the vehicle-mounted radar antenna as an example, in order to achieve a longer detection distance of the vehicle-mounted radar, the antenna needs to have a higher gain. However, simply increasing the number of units in the elevation direction can no longer meet the system requirements, and will cause the radar to be more sensitive to the installation deviation in elevation, so it is necessary to increase the number of antenna units in the azimuth direction and perform beamforming. In order not to generate zero depth in the azi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q1/38H01Q3/30H01Q21/06H01Q1/32G01S7/02
CPCH01Q1/50H01Q3/30H01Q21/0006H01Q1/38H01Q21/061H01Q1/3233G01S7/02
Inventor 范朝洋
Owner 福思(杭州)智能科技有限公司
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