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Digital transmission broadband impedance matching network and design method thereof

A technology of impedance matching network and data transmission radio station, which is applied in the direction of impedance network, multi-terminal pair network, electrical components, etc. It can solve the problems of narrow frequency bandwidth and achieve the effect of realizing impedance matching and expanding the bandwidth of impedance matching

Inactive Publication Date: 2018-11-16
GUANGZHOU HI TARGET NAVIGATION TECH
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  • Description
  • Claims
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Problems solved by technology

[0005] Based on this, it is necessary to provide a broadband impedance matching network for digital transmission stations and its design method for the technical problem that the above-mentioned broadband impedance matching network of digital transmission stations does not solve the narrow frequency bandwidth of device impedance matching

Method used

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  • Digital transmission broadband impedance matching network and design method thereof
  • Digital transmission broadband impedance matching network and design method thereof
  • Digital transmission broadband impedance matching network and design method thereof

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Embodiment Construction

[0025] The technical solution of the present invention will be described in detail below in combination with specific embodiments and accompanying drawings, so as to make it more clear.

[0026] Reference as Picture 1-1 with Figure 1-2 The schematic diagram of the structure of the broadband impedance matching network of the data transmission station is shown. The embodiment of the present invention provides a broadband impedance matching network S10 of the data transmission station. The broadband impedance matching network S10 of the data transmission station includes a first resonant circuit, and the first resonant circuit Including the first inductor S101 and the first capacitor S102, the first inductor S101 and the first capacitor S102 are connected in parallel or in series between the device to be matched S20 and the terminal S30, that is, as Picture 1-1 As shown, the first inductor S101 and the first capacitor S102 are connected in series between the device to be matche...

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Abstract

The invention relates to a digital transmission broadband impedance matching network and a design method thereof. The matching network comprises a first resonant circuit, the first resonant circuit comprises a first inductor and a first capacitor, and the first inductor and the first capacitor are connected in parallel or in series and then are connected between a device to be matched and a terminal. The method comprises the steps of acquiring a first impedance trajectory of a first reflection coefficient of the device to be matched on a Smith chart, and designing the digital transmission broadband impedance matching network capable of curling or twisting the first impedance trajectory according to the positional relationship of the first impedance trajectory and a preset echo loss circle,wherein the matching network comprises a first resonant circuit formed by the first inductor and the first capacitor, and when the impedance match of the device to be matched is carried out, the first inductor and the first capacitor are connected in parallel or in series and then are connected between the device to be matched and the terminal. Through the above matching network and the design method thereof, the impedance matching bandwidth of the device to be matched is expanded, and the impedance matching effect is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a broadband impedance matching network of a data transmission station and a design method thereof. Background technique [0002] In a circuit with resistance, inductance and capacitance, the hindrance to the current in the circuit is called impedance. In order to make the circuit work at the maximum power output, it is necessary to design a broadband impedance matching network for data transmission stations. Impedance matching is performed on the digital transmission circuit, that is, the mutual adaptation of the load impedance and the internal impedance of the excitation source is carried out. [0003] The current design method of the broadband impedance matching network of the data transmission station is to first calculate the frequency response of the device to be impedance matched, and determine the structure and initial parameters of the device, and then use the numer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/38
CPCH03H7/38
Inventor 黄建忠张照良姜军毅张荣海归达举何金鹏
Owner GUANGZHOU HI TARGET NAVIGATION TECH
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