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Adjustable amplitude equalizer based on SIR structure

A technology of amplitude modulation and equalizer, applied in the direction of impedance network, electrical components, multi-terminal pair network, etc., can solve the problems that the fixed equalizer cannot meet the system requirements, the degree of signal distortion is difficult to predict in advance, and the uncertainty of the equalization amount, etc., to achieve The effect of size reduction, dynamic adjustment of equalization amplitude, and volume reduction

Pending Publication Date: 2020-02-11
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

But for satellite communication systems, the core of the problem is not the size of the equalization amount, but the uncertainty of the equalization amount. There are many link devices, and the degree of signal distortion is difficult to predict in advance. Therefore, the fixed equalizer in the prior art cannot meet system requirements

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  • Adjustable amplitude equalizer based on SIR structure
  • Adjustable amplitude equalizer based on SIR structure
  • Adjustable amplitude equalizer based on SIR structure

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Embodiment Construction

[0023] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0024] An adjustable amplitude equalizer based on an SIR structure, which is characterized in that it comprises a dielectric substrate 1. An input port 2, an output port 4 and at least a pair of SIR resonant structures are provided on the front of the dielectric substrate. The back of the sheet is a metal ground layer, and the input port 2 and the output port 4 are connected by the main transmission line 3. Each pair of SIR resonant structures includes two SIR resonant units located on both sides of the main transmission line 3, each SIR resonant unit Both include a rectangular long microstrip line part and an arc microstrip line part. The width of the arc microstrip line part is smaller than the width of the rectangular long microstrip line part. A pair of rectangular long microstrips with two SIR resonance units The inner short side of the line part ...

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Abstract

The invention discloses an adjustable amplitude equalizer based on an SIR structure, and belongs to the technical field of equalizers. The filter comprises a dielectric substrate, an input port, an output port, an SIR resonance unit and a metal ground layer, wherein the input port and the output port are connected through a main transmission line; the SIR resonance unit comprises a rectangular strip microstrip line and an arc microstrip line, and the tail end of the arc microstrip line is in short-circuit connection with the metal ground layer; pIN diodes are arranged between the SIR resonanceunits and the main transmission line, the cathodes of the PIN diodes are connected with the corresponding SIR resonance units, and the anodes of the PIN diodes are connected with the main transmission line through gold wires; and a defected ground structure is arranged on the metal ground layer. The antenna has the characteristics of wide frequency band, small size and adjustable amplitude, and has a wide application prospect.

Description

Technical field [0001] The invention belongs to the technical field of equalizers, and particularly refers to an adjustable amplitude equalizer based on an SIR structure, which can be used in an amplitude equalization device of a satellite communication link. Background technique [0002] During signal transmission, signal components of different frequencies will have inconsistent changes in amplitude, which is called amplitude distortion. The amplitude distortion curve can be divided into four types: parabolic, inverted bell, positive slope, and negative slope according to different signal links. The negative slope is the most common. The method of correcting amplitude distortion is generally to pass through an equalization network before or after the signal distortion. The amplitude-frequency characteristic of the network is exactly the opposite of the amplitude-frequency characteristic of the distorted signal, so that the amplitude distortion of the signal can be corrected. Th...

Claims

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Application Information

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IPC IPC(8): H03H7/18
CPCH03H7/18
Inventor 刘伯文崔平胡丽格
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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