Array antenna near field amplitude phase measuring method and amplitude phase measurer

An array antenna and measuring device technology, applied in the direction of measuring electrical variables, measuring devices, antenna radiation patterns, etc., can solve problems such as low test efficiency and inaccurate test results, and achieve improved efficiency, improved accuracy, and improved accuracy and reliability. The effect of efficiency

Inactive Publication Date: 2016-05-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0007] Aiming at the defects existing in the prior art, the present invention proposes an array antenna near-field amplitude and phase measurement m

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  • Array antenna near field amplitude phase measuring method and amplitude phase measurer
  • Array antenna near field amplitude phase measuring method and amplitude phase measurer
  • Array antenna near field amplitude phase measuring method and amplitude phase measurer

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0057] Such as figure 1 As shown, an embodiment of the present disclosure provides a method for measuring the near-field amplitude and phase of an array antenna, and the method includes the following steps S1 to S4:

[0058] S1. Sampling the first mixed test signal received by the reference antenna to obtain the first sampled signal; the first mixed test signal is the spread spectrum test signal sent by each antenna unit of the array antenna ...

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Abstract

The invention belongs to the antenna measuring technical field, and provides an array antenna near field amplitude phase measuring method and amplitude phase measurer. The method comprises: sampling the first mixing test signal received by a reference antenna to obtain a first sampling signal; sampling the second mixing test signal received by a probe at a current sampling position to obtain a second sampling signal; calculating the channel first amplitude phase information between each T/R module and each antenna unit of a detected array antenna and the reference antenna according to the first sampling signal; calculating the channel second amplitude phase information between each T/R module and each antenna unit of the detected array antenna and the probe current sampling position according to the second sampling signal; and according to the first amplitude phase information and the second amplitude phase information, calculating the near field amplitude phase information of the detected array antenna at the current sampling position. A spread spectrum signal is employed as the calibration signal sent by an array antenna, and through processing the calibration signal, the amplitude phase information measuring accuracy and efficiency of the detected array antenna are improved.

Description

technical field [0001] The invention relates to the technical field of antenna measurement, in particular to an array antenna near-field amplitude and phase measurement method and an amplitude and phase measuring device. Background technique [0002] As the transmitting and receiving equipment of radio communication, the antenna directly affects the quality of the radio signal. Therefore, the antenna occupies an extremely important position in radio communication. The phased array antenna has been widely used in the fields of communication, navigation, radar and electronic countermeasures due to its advantages of fast beam scanning, easy beam shape agility and strong spatial orientation ability. When an antenna is matched to an application, accurate antenna measurement is required. Therefore, antenna test technology has become an important means to guide antenna design and verify antenna performance. According to the division of the antenna field area, the antenna test tech...

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Application Information

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IPC IPC(8): G01R29/10G01R25/00
CPCG01R25/00G01R29/10
Inventor 林玉洁王帅代计博高原安建平卜祥元肖冀秋
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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