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Hydrological monitoring radar panel microstrip array antenna and design method thereof

A microstrip array and hydrological monitoring technology, which is applied to antennas, antenna arrays, and devices for manufacturing antenna arrays, etc., can solve the problem that the technical index level and efficiency of hydrological monitoring radar products need to be improved, the gain effect of microstrip array antennas is insufficient, and side lobes The problem of high level can achieve the effect of reducing the size, reducing the loss of the feeder, and reducing the level of the side lobe

Pending Publication Date: 2019-12-17
HUNAN UNIV
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Problems solved by technology

[0005] Because the gain effect of the existing microstrip array antenna is insufficient, the frequency band is too narrow, and the sidelobe level is relatively high, and the performance of the microstrip array antenna directly affects the technical index level and efficiency of hydrological monitoring radar products, so now The technical index level and efficiency of some hydrological monitoring radar products need to be improved

Method used

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  • Hydrological monitoring radar panel microstrip array antenna and design method thereof
  • Hydrological monitoring radar panel microstrip array antenna and design method thereof
  • Hydrological monitoring radar panel microstrip array antenna and design method thereof

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Embodiment

[0044] A design method of a hydrological monitoring radar flat panel microstrip array antenna, the design method is:

[0045] S1. Select the substrate material of the microstrip array antenna unit, and obtain the best microstrip array antenna unit by calculating the antenna size and simulation optimization;

[0046] S2. Create a 1×8 microstrip linear array antenna model by using the Taylor distribution unequal amplitude feeding method, and achieve the requirements of high gain and strong directivity through the quarter-wavelength impedance matching method;

[0047] S3. The 8×8 microstrip array antenna is composed of a series-parallel feeding method. On the basis of satisfying that the excitation of each array element is in phase, the feeder loss is reduced and the size of the antenna is reduced.

[0048] Further implementation description, the structure of the microstrip array antenna unit is as follows figure 1 As shown, the microstrip array antenna unit includes an antenna ...

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Abstract

The invention discloses a design method of a hydrological monitoring radar panel microstrip array antenna. The method comprises steps of firstly, selecting a substrate material of a microstrip array antenna unit, and obtaining an optimal microstrip array antenna unit by calculating an antenna size and carrying out simulation optimization; secondly, creating a 1*8 microstrip linear array antenna model by using a Taylor distribution unequal amplitude feed method, and meeting requirements of high gain and strong directivity by using the quarter-wavelength impedance matching method; and finally, forming an 8*8 microstrip array antenna by adopting a series-parallel combined feeding mode, and reducing feeder line loss and reducing the size of the antenna on the basis of meeting the excitation cophase of each array element. The design method is advantaged in that directivity of the antenna is greatly improved, accuracy of the radar is correspondingly improved, the size of the whole antenna isreduced while high gain is obtained, and the technical characteristics of miniaturization, high gain, large bandwidth, low sidelobe, narrow beam and the like are achieved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a flat microstrip array antenna for hydrological monitoring radar and a design method thereof. Background technique [0002] For a long time, mmWave radar sensors have been combined with bulky and complex discrete components, which has limited their development in mass markets such as industrial and consumer electronics. However, the transceiver antenna located at the front end of the radar still has problems such as large volume, high sidelobe level and narrow frequency band. Compared with traditional antennas, microstrip antennas have the characteristics of small size, light weight, low profile, and easy commonality. At the same time, they also have the advantages of low cost, easier integration, and mass production. However, a single microstrip element antenna usually has low gain and poor directivity, which cannot meet various characteristics. The microstrip array antenna i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q21/06H01Q1/38H01Q1/50
CPCH01Q21/0087H01Q21/065H01Q21/0075H01Q1/38H01Q1/50
Inventor 李高升申婉婷潘少鹏蒋建辉邱永峰肖培刘柱卞立安
Owner HUNAN UNIV
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