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Microwave antenna, microwave equipment and application thereof

A technology of microwave antenna and microstrip line, which is applied in the field of microwave to achieve the effect of improving performance and reducing sidelobe level

Inactive Publication Date: 2016-02-03
赵冰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in such a vertical feed network, if a conventional symmetrical power divider is used (that is, the power distribution ratio from the feed input branch to each output branch is close to 1:1), it will cause the side lobe of the antenna The level is around -13dB, which is too high a sidelobe level for most microwave systems, especially radar sensors

Method used

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  • Microwave antenna, microwave equipment and application thereof
  • Microwave antenna, microwave equipment and application thereof
  • Microwave antenna, microwave equipment and application thereof

Examples

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Embodiment Construction

[0025] The following intends to explain exemplary embodiments of the invention with the aid of the figures, without limiting the scope of the invention. Those skilled in the art can understand that the technical solutions suggested by the present invention can also be implemented in other ways without departing from the gist of the present invention.

[0026] figure 1 A schematic schematic diagram of a microwave antenna 1 according to an embodiment of the present invention is shown. In this microwave antenna 1, a plurality of antenna radiating elements a 1 -a 4 , b 1 -b 4 , and c 1 -c 4 Arranged on a plane, an array of antenna radiation elements is formed. Antenna radiating unit a 1 with b 1 、c 1 between, a 2 with b 2 、c 2 between, a 3 with b 3 、c 3 between, and a 4 with b 4 、c 4 Carry out serial feed through the serial transmission line d respectively between them.

[0027] figure 1 Schematically shows two primary power dividers S 11 and S 12 . One o...

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Abstract

The invention discloses a microwave antenna which comprises an antenna radiation unit and a feed network for feeding power to the antenna radiation unit, wherein the feed network comprises one or more longitudinal power dividers; the input branch circuit and the output branch circuit of each longitudinal power divider are respectively positioned on different planes; the longitudinal power dividers comprise unequal power dividers; at least one output branch circuit, of each unequal power divider, is of a geometric structure different from those of other output branch circuits, so that the power distribution of at least one output branch circuit is not equal to those of other output branch circuits. The invention further discloses microwave equipment comprising the microwave antenna, and application of the microwave equipment in industrial control systems or vehicle-mounted radar systems.

Description

technical field [0001] The present invention generally relates to the field of microwave technology, and specifically relates to a microwave antenna, which includes an antenna radiating unit and a feeding network for feeding the antenna radiating unit. The present invention also relates to a microwave device including the microwave antenna, and the application of the microwave device in an industrial control system or a vehicle radar system. Background technique [0002] The broadband microwave system may include a microwave antenna, a radio frequency signal sending and receiving unit, a signal calculation and processing unit, an object recognition unit, and a control unit. The microwave antenna includes a plurality of radiating elements (such as realized by a patch antenna), and a feeding network for feeding radio frequency signals to the radiating elements. Since the operating frequency of the broadband microwave system is very high, in some applications, in order to ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q23/00
Inventor 赵冰
Owner 赵冰