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A Beamforming Method for Surface Conformal Circularly Polarized Phased Array Antenna

A phased array antenna and beamforming technology, applied to antenna arrays, radio transmission systems, electrical components, etc., which are powered separately The effect of polarization

Active Publication Date: 2020-03-10
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

Therefore, the planar phased array beamforming algorithm in the prior art can no longer be applied to conformal phased array antennas

Method used

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  • A Beamforming Method for Surface Conformal Circularly Polarized Phased Array Antenna
  • A Beamforming Method for Surface Conformal Circularly Polarized Phased Array Antenna
  • A Beamforming Method for Surface Conformal Circularly Polarized Phased Array Antenna

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Embodiment Construction

[0058] In order to make it easier for those skilled in the art to understand the technical solution of this patent, and at the same time, in order to make the technical purpose, technical solution and beneficial effect of this patent clearer, and to fully support the protection scope of the claims, the following is a specific case in the form of this patent. The technical solution of the patent makes further and more detailed descriptions.

[0059] Such as figure 1 As shown, a curved surface conformal circularly polarized phased array antenna beamforming method, which includes the following steps:

[0060] Step 1: If figure 2 As shown, the global coordinate system of the surface conformal array and the local coordinate system of the antenna unit are established.

[0061] Taking the spherical conformal array as an example, the radius of the spherical surface is R, and the global coordinate system O-XYZ of the array is established as follows: take the spherical top as the coo...

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Abstract

The invention discloses a curved surface conformal circular polarization phased array antenna beam synthesis algorithm, which belongs to the technical field of conformal phased array antennas. Including: establishing the global coordinate system of the surface conformal array and the local coordinate system of the antenna unit; obtaining the global coordinates, position vector and polarization vector of each antenna unit; calculating the vector pattern of each antenna unit according to the position vector of the antenna unit and the local pattern of the unit ; The polarization compensation phase of each channel is calculated according to the beam pointing angle and the unit polarization vector; the total field synthesis is performed on the curved surface conformal circularly polarized phased array antenna, and the array pattern is obtained. The present invention synthesizes the optimal polarization by adding polarization compensation phase to each channel, the method is simple, easy to realize, and the calculation speed is fast, especially suitable for circularly polarized conformal phased array antennas, which has a high engineering application prospect and is a good choice for An important improvement over the prior art.

Description

technical field [0001] The invention relates to the technical field of conformal phased array antennas, in particular to a beam synthesis method for curved surface conformal circularly polarized phased array antennas. Background technique [0002] As an electronic system with the array antenna as the main body, the phased array antenna can intelligently control and adjust the amplitude and phase of each array unit through a specific feeding method, so that it is extremely convenient to realize the power combination of the signal in space, and Complete beamforming and inertialess, flexible scanning. [0003] When the unit antennas in the antenna array are distributed on the surface of the electronic system platform and conform to the shape of the carrier platform, a conformal phased array antenna is formed. The conformal phased array has more advantages than the planar phased array: the scanning range is larger, the space utilization rate of the platform is high, and the aer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0408H01Q21/20
CPCH01Q21/20H04B7/0408
Inventor 张宙韩国栋段永强
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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