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A seven-element Beidou b3 anti-jamming array antenna

An array antenna and antenna technology, which is applied in the field of Beidou navigation system antenna arrays, can solve the problems of difficulty in meeting the anti-interference characteristics and general axial ratio pattern characteristics, and achieve the effect of improving the gain characteristics and broadening the beam width.

Active Publication Date: 2018-08-28
NO 722 RES INST OF CHINA SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem in the prior art that the axial ratio pattern characteristics of each frequency point in the full frequency band of the four-element array antenna are general, and it is difficult to meet the engineering requirements of strong anti-interference characteristics, the embodiment of the present invention provides a seven-element Beidou B3 Anti-jamming Array Antenna

Method used

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  • A seven-element Beidou b3 anti-jamming array antenna
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  • A seven-element Beidou b3 anti-jamming array antenna

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Embodiment

[0028] An embodiment of the present invention provides a seven-element Beidou B3 anti-jamming array antenna, see Figure 1~4 , the antenna consists of:

[0029] Antenna cavity 101, seven patch antennas 102 and feed network 103, antenna cavity 101 is provided with seven metal cavities 1011, one metal cavity 1011 is set in the center of antenna cavity 101, and the other six metal cavities 1011 is set on the circle with the metal cavity 1011 in the center of the antenna cavity 101 as the center, and the other six metal cavities 1011 equally divide the circle, and the seven patch antennas 102 are respectively set on the seven metal cavities 1011 and are in the On the same side of the antenna cavity 101, the feed network 103 is encapsulated in seven metal cavities 1011 and located between the patch antenna 102 and the antenna cavity 101, and each patch antenna 102 is respectively provided with two The feed points to which the electrical network 103 is electrically connected. The ...

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Abstract

The invention discloses an anti-interference array antenna of a seven-element big dipper B3, and belongs to the field of antennas. The antenna comprises an antenna cavity, seven patch antennas and a feed network, wherein seven metal cavities are formed in the antenna cavity; one metal cavity is formed in the center of the antenna cavity; the other six metal cavities are formed in the circumference employing the metal cavity in the center of the antenna cavity as the circle center; the other six metal cavities equally divide the circumference; the seven patch antennas are arranged on the seven metal cavities respectively and are located at the same surface of the antenna cavity; the feed network is encapsulated into the seven metal cavities and is located between the patch antennas and the antenna cavity; and two feed points which are electrically connected with the feed network are arranged on each patch antenna respectively. The antenna can effectively restrain interferences from six interference source incoming wave directions at least, and can meet the requirements of rapid navigation and positioning within a frequency band B3 and relatively high anti-interference characteristic.

Description

technical field [0001] The invention relates to a Beidou navigation system antenna array, in particular to a seven-element Beidou B3 anti-jamming array antenna. Background technique [0002] In recent years, with the development of satellite navigation technology, satellite navigation technology has been widely used in military, scientific research, agriculture and other fields. Currently, satellite navigation systems with global navigation and positioning capabilities include GPS (Global Positioning System, Global Positioning System) of the United States, GLONASS (Global Navigation Satellite System, Global Navigation Satellite System) of Russia, Galileo of Europe, and the like. China's Beidou satellite navigation system, Beidou II, will also complete the launch of navigation and positioning satellites covering the world around 2020. By then, Beidou II will become a real global navigation and positioning system. [0003] With the development of the Beidou satellite navigati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/52H01Q1/50H01Q21/00H01Q1/12H01Q1/38
Inventor 陈聪张雄杨东昊李成全刘东升
Owner NO 722 RES INST OF CHINA SHIPBUILDING IND
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