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Calibration circuit, calibration network and intelligent antenna

A technology for calibrating circuits and distributing networks, applied in the field of communication, can solve the problem of low degree of miniaturization, and achieve the effect of optimizing layout and wiring, saving sky space and compact structure

Pending Publication Date: 2020-05-12
COMBA TELECOM TECH (GUANGZHOU) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of realizing the present invention, the inventors found that the traditional calibration network has the problem of low miniaturization

Method used

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  • Calibration circuit, calibration network and intelligent antenna
  • Calibration circuit, calibration network and intelligent antenna
  • Calibration circuit, calibration network and intelligent antenna

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0028] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0029] Such as figure 1 Shown is a schematic diagram of the ...

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Abstract

The invention relates to a calibration circuit, a calibration network and an intelligent antenna. The calibration circuit comprises a power distribution network module and a plurality of directional couplers. And each branch port of the power distribution network module is electrically connected with one end of each directional coupler in a one-to-one correspondence manner. The directional couplercomprises a first coupling section and a second coupling section which are coupled and connected. The first coupling section is used for being electrically connected between the intelligent antenna port and the antenna array. One end of the second coupling section is electrically connected with a branch port of the power distribution network module, and the other end of the second coupling section is grounded. The characteristic impedance of the first coupling section is smaller than that of the second coupling section, and the electrical length of the first coupling section is larger than that of the second coupling section. The directional couplers in the calibration circuit are modified, the asymmetric directional couplers are composed of the two coupling sections with different characteristic impedances and different electrical lengths, the asymmetric directional couplers and the power distribution network module form a new calibration circuit, and the miniaturization degree of the calibration network is greatly improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a calibration circuit, a calibration network and an intelligent antenna. Background technique [0002] With the development of mobile communication technology, mobile communication has developed into the 5G era. After 5G is generally commercialized, the state of coexistence of 4G and 5G networks will last for a long time. The 4G network standards are mainly FDD (Frequency Division Duplexing, frequency division duplexing) and TDD (Time Division Duplexing, time division duplexing). The mobile 4G network is mainly based on the TDD system, and the communication coverage of the TDD system requires a large number of smart antennas, so the application demand for these smart antennas will remain at a high level. [0003] In the smart antenna, the calibration network is the core component of the smart antenna, which is used to collect the amplitude and phase signals of the unit an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/11H04B17/21
CPCH04B17/11H04B17/21
Inventor 周洪剑李长恒刘春林
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD
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