Four-beam microstrip transmission array antenna based on super-surface, and design method for four-beam microstrip transmission array antenna

A metasurface and array antenna technology, applied in the direction of antenna, waveguide horn, radiation element structure, etc., can solve the problems of large loss, complex manufacturing and space application, and high cost

Active Publication Date: 2016-07-20
AIR FORCE UNIV PLA
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Problems solved by technology

The synthesis method of traditional multi-beam antennas is based on horn feed arrays or large phased arrays, often r...

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  • Four-beam microstrip transmission array antenna based on super-surface, and design method for four-beam microstrip transmission array antenna
  • Four-beam microstrip transmission array antenna based on super-surface, and design method for four-beam microstrip transmission array antenna
  • Four-beam microstrip transmission array antenna based on super-surface, and design method for four-beam microstrip transmission array antenna

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Embodiment Construction

[0035] Four-beam transmission array antenna embodiment:

[0036] Such as Figure 6 As shown, the length of the waveguide is a=22.86mm, the width is b=10.16mm, and the opening diameter of the horn is A*B=44*24mm 2 , the overall height is L=30mm, a and b are the aperture size of the standard X-band waveguide BJ-100, A, B and L are determined according to impedance matching and antenna aperture size optimization.

[0037] Among them, the structural parameter of the metasurface microstrip transmission array unit is p x =p y =10mm,w 1 =0.8mm, w 2 =0.5mm, w 3 =4.05mm, d 1 =D 2 =0.3mm and d 3 =8mm.

[0038] The central operating frequency of the transmission array antenna of the present invention is f 0 =9.6GHz, N=25, D=250mm, F=150mm, the elevation angles of the four beams are θ=40°, and the azimuth angles are φ 1 =0°, φ 2 =90°, φ 3 =180° and φ 4 =270°.

[0039] For verifying the correctness of the design method of the present invention, Figure 7 The theoretical opti...

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Abstract

The invention belongs to the technical field of microstrip transmission array antennas, specifically a four-beam microstrip transmission array antenna based on a super-surface, and a design method for the four-beam microstrip transmission array antenna. The antenna consists of a horn feed source and a super-surface microstrip transmission array. The horn feed source consists of a waveguide and a horn opening. The distance from the horn opening to the super-surface microstrip transmission array is set as F, and the diameter of the super-surface microstrip transmission array is set as D. The super-surface microstrip transmission array consists of N*N super-surface transmission units. Each super-surface transmission unit consists of three identical composite metal structures and two dielectric plates with the height h, wherein each composite metal structure consists of an I-shaped structure and metal pasters in complete left/right symmetry, and is used for achieving the coupling of two transmission modes in the same plane, thereby reducing the resonant frequency of the unit, and increasing the phase response slope and phase accumulation. The antenna is advantageous in that the antenna is low in side lobe, is high in gain, is balanced in wave beam, is light in weight, is low in cost, and is easy to assemble and integrate.

Description

technical field [0001] The invention belongs to the technical field of microstrip transmission array antennas, in particular to a four-beam microstrip transmission array antenna and a design method thereof. Background technique [0002] Multi-beam antennas have the advantages of flexible control of the number and shape of beams, and quick beam scanning. They are widely used in electronic countermeasures, satellite communications, multi-target radar systems, and multi-channel intelligent communications. Traditional multi-beam antenna synthesis methods are based on horn feed arrays or large phased arrays, often relying on multi-port multi-beam forming feed networks, which are complex in fabrication and space application, with high loss and high cost. There are three types of existing multi-beam technologies: lens type, reflector type and phased array type. Microstrip array antenna combines the characteristics of array antenna and parabolic reflector, and has many advantages s...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q13/02H01Q13/08
CPCH01Q1/38H01Q13/02H01Q13/08
Inventor 许河秀蔡通王光明梁建刚
Owner AIR FORCE UNIV PLA
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