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An antenna polarization parameter measurement device and method

A technology of parameter measurement and antenna polarization, which is applied in the direction of measuring devices, antenna radiation patterns, and measuring electrical variables, etc., which can solve the problems of high test costs and untestable antennas

Active Publication Date: 2021-04-23
嘉兴诺艾迪通信科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The second method requires data collection through a vector receiver, which usually takes into account the test requirements of sending and receiving synchronization, and uses a relatively expensive vector network analyzer (vector network analyzer, VNA), which makes the test cost very high
For this radiation characteristic, it cannot be tested when the antenna is used as a receiving antenna.

Method used

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  • An antenna polarization parameter measurement device and method
  • An antenna polarization parameter measurement device and method
  • An antenna polarization parameter measurement device and method

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Embodiment Construction

[0046] see figure 1 , the antenna polarization parameter measuring device 10 of the present application includes antenna one 102 , antenna two 104 , IQ vector modulator one 106 , IQ vector modulator two 108 , switch network 110 , spectrum analyzer 112 and controller 150 .

[0047] The first antenna 102 and the second antenna 104 are respectively a vertically polarized antenna and a horizontally polarized antenna; or, the polarization types of the two are interchanged. The antenna under test is used as a transmitting antenna to connect with other transmitting devices to form a complete transmitting system, and the antenna under test is used to transmit the output signal of the signal source to the outside. A pair of orthogonal linearly polarized antennas constituted by antenna one 102 and antenna two 104 serves as a receiving antenna.

[0048] The first IQ vector modulator 106 and the second IQ vector modulator 108 are respectively connected to the output terminals of the firs...

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Abstract

The application discloses an antenna polarization parameter measurement device, which includes two antennas, two IQ vector modulators, a switch network, a spectrum analyzer and a controller. The controller further includes a switch unit, a first adjustment unit, a second adjustment unit, a third adjustment unit and a calculation unit. The antenna polarization parameter measurement device above uses the vertical test channel as a reference, and uses the amplitude ratio of the horizontal test channel to the vertical test channel and the phase difference between the horizontal test channel and the vertical test channel to calculate the polarization parameters of the antenna to be tested. The application also discloses a corresponding method for measuring antenna polarization parameters. This application does not need to predict the polarization information of the antenna to be tested, and can directly provide complete polarization parameters such as the polarization type, polarization inclination, and axial ratio of the antenna to be tested through testing.

Description

technical field [0001] The present application relates to an antenna far field (far field) test technology, in particular to a device and method for measuring the polarization characteristics of an antenna or an antenna array used as a transmitting antenna. Background technique [0002] The polarization characteristics of the antenna are common linear polarization (linear polarization) and circular polarization (circular polarization). Among them, linear polarization is divided into vertical polarization, horizontal polarization, and slant polarization according to the direction of polarization; circular polarization has left-handed circular polarization according to the direction of rotation. Polarization (left-hand circular polarization), right-hand circular polarization (right-hand circular polarization). [0003] It is difficult for the linearly polarized antenna realized in engineering to achieve absolute vertical polarization and horizontal polarization. For example,...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/10G01R25/00G01R23/16
CPCG01R23/16G01R25/00G01R29/10
Inventor 王玉峰
Owner 嘉兴诺艾迪通信科技有限公司