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A High Frequency Broadband High Power Coaxial Fixed Attenuator

A fixed attenuator, high-power technology, applied in the direction of waveguide devices, circuits, electrical components, etc., can solve the problem of limited power of the attenuator, can not meet the needs of the test, deterioration of the standing wave ratio and attenuation accuracy, to improve The effect of the maximum withstand power

Active Publication Date: 2018-12-28
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the existing technology is: when transmitting high-frequency signals, in order to ensure the standing wave ratio and attenuation accuracy of the signal transmission, the thickness of the dielectric substrate should be designed to be thinner, so the attenuator can withstand limited power and cannot meet certain test requirements. needs
The coaxial power attenuator products in the prior art, when the signal frequency reaches 40GHz, in order to avoid deterioration of standing wave ratio and attenuation accuracy, the power capacity can only reach 20W; when the signal frequency reaches 42GHz, the power capacity can only reach 5W

Method used

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  • A High Frequency Broadband High Power Coaxial Fixed Attenuator
  • A High Frequency Broadband High Power Coaxial Fixed Attenuator
  • A High Frequency Broadband High Power Coaxial Fixed Attenuator

Examples

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and example the present invention will be further described:

[0021] Such as Figure 2-4 As shown, the high-frequency broadband high-power coaxial fixed attenuator of this embodiment includes an input interface 1, a cable attenuation assembly 2, a slope attenuator 3 and an output interface 4 connected in sequence, and the cable attenuation assembly 2 and the slope attenuator 3 is provided with a radiator 5 outside, the input interface 1 and the output interface 4 are respectively connected to both ends of the radiator 5 through the radio frequency coaxial connector 6, and the cable attenuation assembly 2 is used to dissipate heat from the input interface 1 to The center of the device 5 is a coaxial cable 21 coiled in a helical shape.

[0022] The radiator 5 includes an upper cover plate 51 and a lower cover plate 52 , the upper cover plate 51 and the lower cover plate 52 are of a split structure or an integrated structure...

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Abstract

The invention relates to the microwave passive device field, particularly to a high-frequency broadband high-power coaxial fixed attenuator comprising an input interface, a cable attenuation assembly, a slope attenuator and an output interface in successive connection. A heat radiation is arranged outside the cable attenuation assembly and the slope attenuator; the input interface and the output interface are connected to the two ends of the heat radiator by radio-frequency coaxial connectors; and the cable attenuation assembly is a coaxial cable coiling spirally and inwardly from the input interface. The power of a microwave signal is consumed by using the cable attenuation assembly and is converted into heat that is then dissipated by the heat radiator, so that the signal power can reach a power-resistant range of the slope attenuator.

Description

technical field [0001] The invention relates to the field of microwave passive devices, in particular to a high-frequency broadband high-power coaxial fixed attenuator. Background technique [0002] The high-power coaxial fixed attenuator can quantitatively absorb the energy in the transmission line, expand the power range, control the power level, and can be equipped with a small power meter, comprehensive tester or spectrum analyzer, etc., to accurately measure the power of various RF microwave transmitters power or spectrum. It is widely used in broadcasting, electromagnetic compatibility (EMC), semiconductor, military, medical, scientific research and other fields, especially for the testing of high-power signals commonly found in commercial broadcasting and military radar systems. [0003] figure 1 It is the schematic diagram of the high-power attenuator of Weinschel Company in the United States. It is the coaxial fixed attenuator with the highest frequency and the la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/22
CPCH01P1/22H01P1/225
Inventor 张猛文春华宁曰民王进军唐波潘猛刘长春姜万顺年夫顺
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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