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Interference-resistant antenna unit capable of improving amplitude phase consistency and interference-resistant array antenna

An antenna unit and array antenna technology, which is applied to antenna arrays, independent antenna unit combinations, antennas, etc., can solve problems such as the inability to meet the development requirements of satellite array antenna systems, and achieve the effects of low profile gain, small volume, and low loss.

Pending Publication Date: 2019-06-14
深圳市朗赛微波通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional antenna unit design ideas can no longer meet the development requirements of satellite array antenna systems

Method used

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  • Interference-resistant antenna unit capable of improving amplitude phase consistency and interference-resistant array antenna
  • Interference-resistant antenna unit capable of improving amplitude phase consistency and interference-resistant array antenna
  • Interference-resistant antenna unit capable of improving amplitude phase consistency and interference-resistant array antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 , figure 2 As shown, an anti-jamming antenna unit for improving amplitude and phase consistency is characterized in that it includes: a metal isolation enclosure 1, a microstrip antenna 2, a power division phase-shifting feed board 3, an antenna liner 4 and a coaxial connector 5. The metal isolation enclosure 1 is a metal frame with an open top and closed surroundings, and the microstrip antenna 2 is arranged in the metal frame, leaving space between the surroundings of the microstrip antenna 2 and the inner wall of the metal frame. There is a gap, the top of the microstrip antenna 2 is lower than the top of the metal frame to form a height difference, the power division phase-shift feed plate 3 is arranged on the bottom inner side of the metal frame, and the antenna backing plate 4 Set outside the bottom of the metal frame, the coaxial connector 5 is fixed on the antenna backing board 4 and feeds the microstrip antenna 2 through the power division phase...

Embodiment 2

[0053] like Image 6 As shown, an anti-jamming array antenna, the working frequency band is from 0.8GHz to 2.7GHz, including: a reflector 6, and several microstrip antenna elements 7 arranged on the reflector 6, characterized in that the microstrip The antenna element 7 is the antenna unit described in the first embodiment.

[0054] Wherein, the number of microstrip antenna array elements 7 is 11, which are not evenly arranged and have different frequency bands.

[0055] The anti-jamming array antenna provided in this embodiment can be applied in the anti-jamming system of the flying missile data link, and can be used as the Beidou 2nd generation receiving antenna system. The anti-interference array antenna provided in this embodiment has the advantage that the four units in different frequency bands are all in independent working states, which can perform multi-directional anti-interference suppression, and use the antenna unit provided in Embodiment 1 to reduce mutual inter...

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Abstract

The invention discloses an interference-resistant antenna unit capable of improving amplitude phase consistency. The interference-resistant antenna unit comprises a metal isolation surrounding frame,a microstrip antenna, a power division phase-shift feeding plate, an antenna lining plate and a coaxial connector, wherein the metal isolation surrounding frame is a metal frame of which the top is opened and the circumference is closed, the microstrip antenna is arranged in the metal frame, a gap is reserved between the circumference of the microstrip antenna and an inner wall of the metal frame,the top of the microstrip antenna is lower than the top of the metal frame, the power division phase-shift feeding plate is arranged at an inner side of the bottom of the metal frame, the antenna lining plate is arranged at an outer side of the bottom of the metal frame, and the coaxial connector is used for feeding the microstrip antenna by the power division phase-shift feeding plate. By the interference-resistant antenna unit, the performance index of the amplitude phase consistency of each antenna unit is effectively improved, the interference-resistant performance is obviously improved,and the requirement of system stable positioning of an interference-resistant array antenna under a three-interference system is met. The invention also provides the interference-resistant array antenna.

Description

technical field [0001] The invention relates to the technical field of antennas, and more specifically relates to an antenna unit design and an anti-jamming array antenna applicable to a satellite anti-jamming antenna system. Background technique [0002] The anti-interference array antenna has higher requirements on the antenna unit than the single-antenna system. For example, in the Beidou navigation system, in the research process of anti-interference ability, material suppliers have developed materials with a dielectric constant of 3-15. Constrained by volume requirements, the unit antenna system and the array antenna also have significant differences in layout. For example, the Beidou B3 frequency antenna, in the unit antenna system, the antenna unit is often placed in the center and has superior performance; once it is applied to the array antenna, the antenna unit Placed at the edge, resulting in serious deterioration of the gain index and out-of-roundness index. Mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q15/24H01Q19/10H01Q21/00H01Q21/30
Inventor 陈智达彭顺全梁伟均
Owner 深圳市朗赛微波通信有限公司
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