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Millimeter wave band-used low-loss high-vacuum sealing heat-insulation transfer window

A technology of millimeter-wave frequency band and transmission window, which is applied in the direction of waveguide devices, electrical components, antenna parts, etc., can solve the problem of limited use of sealed wave-transmissive windows, achieve improved vacuum sealing performance, high vacuum sealing performance, and solve Effects of Using Restricted Questions

Active Publication Date: 2017-05-31
CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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Problems solved by technology

[0005] The purpose of the present invention is to provide a low-loss high-vacuum sealed heat-insulated transmission window for the millimeter wave frequency band, which can not only effectively reduce the transmission reflection loss of electromagnetic wave signals, improve the problem of a large number of interference bands in the existing window, but also greatly improve the Vacuum sealing performance, solves the problem of limited use of sealed wave-transparent windows of traditional cryogenic receivers / superconducting receivers, and has good heat insulation effect, effectively reducing heat radiation

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  • Millimeter wave band-used low-loss high-vacuum sealing heat-insulation transfer window
  • Millimeter wave band-used low-loss high-vacuum sealing heat-insulation transfer window
  • Millimeter wave band-used low-loss high-vacuum sealing heat-insulation transfer window

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing:

[0026] Such as figure 1 A schematic diagram of the structure of a low-loss high-vacuum sealed heat-insulated transmission window for the millimeter-wave frequency band is shown. The transmission window includes a multilayer dielectric window 1 , a sealing upper flange 2 and a sealing lower flange 3 . The sealing flange is usually used in conjunction with a metal sealing ring, and is tightened by crimping to achieve a metal airtight seal. The invention is used as a signal input port of a cryogenic receiver and a superconducting receiver, and plays the role of wave penetration and vacuum sealing. The invention is used to solve the problem of large return loss (especially in the millimeter wave band), easy introduction of interference signals, poor vacuum sealing performance and limited use due to the window structure of the existing cryogenic / superconducting receiver sealed ...

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Abstract

The invention relates to a millimeter wave band-used low-loss high-vacuum sealing heat-insulation transfer window, which comprises a multilayer dielectric window and a sealing upper flange and a sealing lower flange arranged at the upper side and the lower side of a multilayer dielectric window edge respectively, wherein the multilayer dielectric window comprises a first tetrafluoride layer, a quartz layer, a second tetrafluoride layer and a heat insulation layer. Transmission reflection loss of electromagnetic wave signals can be effectively reduced, the problem of a large amount of interference fringes existing in the existing window can be solved, the vacuum sealing performance can be greatly enhanced, the problem that the use of the sealing wave-transmitting window of the traditional low-temperature receiver / superconducting receiver is limited can be solved, good heat insulation effects are achieved, and the heat radiation can be reduced effectively.

Description

technical field [0001] The invention relates to the technical field of microwave signal transmission window components, in particular to a low-loss, high-vacuum, heat-insulated transmission window for millimeter wave frequency bands. Background technique [0002] The sealing window is mainly used for the transmission of light and the transmission of microwave signals, and also has the ability of vacuum sealing. At present, the sealing window technology is mainly used in infrared detectors, cryogenic receivers, and superconducting receivers. [0003] In infrared applications, the sealing window is mainly made of sapphire material, which requires good light transmission and maintains a good vacuum degree. However, the dielectric constant of the sealing window is relatively large, which is usually not suitable for the transmission of microwave signals. [0004] For microwave transmission windows used in cryogenic receivers / superconducting receivers, there are three commonly ...

Claims

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Application Information

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IPC IPC(8): H01P1/08H01Q1/00H01Q19/19
CPCH01P1/08H01Q1/00H01Q19/19
Inventor 宾峰王自力倪津津傅斌李娇娇陆勤龙阮晓明杨时红
Owner CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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