Ultra wideband amplitude equalizer based on defected ground structure

A technology of amplitude equalizer and defective ground structure, applied in the direction of impedance network, electrical components, multi-terminal pair network, etc., can solve problems such as difficult theoretical analysis, complex field distribution, narrow working bandwidth, etc., and achieve shortened production cycle, small size, Easy to debug effects

Inactive Publication Date: 2017-07-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0013] Disadvantage 1: The wavelength of the traditional planar circuit amplitude equalizer is proportional to the size of the resonant stub, and the resonant stub at the low end of the microwave frequency is longer, and the folding of the resonant stub may cause energy coupling due to the short distance;
[0014] Disadvantage 2: The single resonator of the traditional planar circuit amplitude equalizer absorbs less energy and has a narrow working bandwidth;
[0015] Disadvantage 3: If the traditional planar circuit amplitude equalizer is used to load DGS, DGS and the original resonator exist at the same time, the field distribution is relatively complicated, it is difficult to analyze theoretically, and it is difficult to debug

Method used

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  • Ultra wideband amplitude equalizer based on defected ground structure
  • Ultra wideband amplitude equalizer based on defected ground structure
  • Ultra wideband amplitude equalizer based on defected ground structure

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing, the present invention will be further described:

[0046] Such as Figure 1-4 As shown, the ultra-wideband amplitude equalizer based on the defective ground structure of the present invention includes a main transmission line 5, an input and output port, an input and output matching circuit, and a DGS of loading resistors. The main transmission line 5 is a microstrip transmission line located on the dielectric substrate 8 . The input and output ports include input port 1 and output port 7, which are respectively located at the input end and output end of the device. The input and output matching circuit (non-essential structure) includes an input matching circuit 2 and an output matching circuit 6. The input matching circuit 2 is located between the input port 1 and the main transmission line 5 to improve the input standing wave ratio; the output matching circuit 6 is located on the main transmission line Between 5 and o...

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Abstract

The invention discloses an ultra wideband amplitude equalizer based on a defected ground structure. An input port, an input matching circuit, a main transmission line, an output matching circuit and an output port are orderly arranged from signal input to output, a DGS for loading the resistance is arranged on a metal ground layer under a dielectric substrate. The amplitude equalizer disclosed by the invention has the characteristics of ultra wideband, small size and simple structure, is easy for manufacturing and large-scale production, and worthy of popularizing in the industry.

Description

technical field [0001] The invention belongs to the technical field of microwave and millimeter wave integration, and in particular relates to an ultra-wideband amplitude equalizer based on a defect ground structure. Background technique [0002] The equalizer is mainly used in modern radar electronic warfare. It is connected to the input or output of the high-power traveling wave tube and plays the role of gain equalization (amplitude equalizer) or phase equalization (phase equalizer). The key is how to selectively absorb excess microwave energy without reflecting energy back to the input port. For an amplitude equalizer that uses a resonant structure to absorb energy, the former needs to be correctly set up with the resonant structure and absorbing material, and the latter needs to have a good input-output match in the entire frequency band. [0003] Specifications for amplitude equalizers. 1. The transmission characteristic curve of the amplitude equalizer should be exa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/06
CPCH03H7/06
Inventor 夏雷刘伶李博覃丽容吕俊杰延波徐锐敏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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