Microwave attenuator

A technology of microwave attenuation and attenuator, applied in the direction of waveguide devices, instruments, microstructure technology, etc., to achieve the effect of wide frequency range, high integration and simple structure

Inactive Publication Date: 2012-08-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure can solve many problems in materials, process, reliability, repeatability and production cost, thus providing support and guarantee for the industrial application of the attenuator structure based on MEMS technology in microwave amplifying circuits

Method used

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  • Microwave attenuator
  • Microwave attenuator

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] see figure 1 , the microwave attenuator provided by the present invention, the attenuator includes a substrate, a coplanar waveguide 1 arranged on the substrate, a first absorbing resistor 21, a second absorbing resistor 22, a first micromechanical switch 31, a second micromechanical switch 32;

[0015] Wherein, the coplanar waveguide 1 includes a coplanar waveguide signal line 11 and a first coplanar waveguide ground line 1a and a second coplanar waveguide ground line 1b symmetrically arranged with respect to the coplanar waveguide signal line 11,

[0016] One end of the first absorption resistor 21 is connected to the coplanar waveguide ground wire 1a, and the other end is disconnected from the coplanar waveguide signal line 11. A first micromechanical switch 31 is placed at the disconnected position, and the first micromechanical switch 31 is used to contro...

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Abstract

The invention provides a microwave attenuator which comprises a substrate, and a coplanar waveguide (1), a first absorption resistor (21), a second absorption resistor (22), a first micro-mechanical switch (31) and a second micro-mechanical switch (32) which are arranged on the substrate, wherein the coplanar waveguide (1) comprises a coplanar waveguide signal wire (11), and a first coplanar waveguide earth wire (1a) and a second coplanar waveguide earth wire (1b) which are arranged symmetrically with respect to the coplanar waveguide signal wire (11); and one end of the first absorption resistor (21) is connected with the coplanar waveguide earth wire (1a), the other end of the first absorption resistor (21) is disconnected with the coplanar waveguide signal wire (11), and the first micro-mechanical switch (31) is placed in the disconnection position. The microwave attenuator controls the access of the absorption resistors by switching on or off the micro-mechanical switches, thereby realizing reconfiguration of multiple attenuations of the microwave attenuator, namely realizing reconfiguration of the attenuator structure.

Description

technical field [0001] The invention uses a micromechanical switch to control the access of a plurality of absorbing resistors of a microwave attenuator, and realizes different attenuation through the arrangement and combination of absorbing resistors with different resistance values, so as to achieve the purpose of adjusting the microwave signal power, and belongs to microelectronic devices technology field. Background technique [0002] In the radio frequency system, the microwave attenuator is very important because it can attenuate the microwave power in a wide frequency band, eliminate the output power mismatch between the stages of the multi-stage microwave amplifier circuit, and increase the reliability and stability of the system. role. Aiming at the mismatch between the output power of the preamplifier circuit and the input power of the postamplifier circuit in the multistage microwave amplifying circuit, the microwave attenuator uses impedance elements such as abs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/22B81B7/00
Inventor 韩磊
Owner SOUTHEAST UNIV
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