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Self-matching ultra-wideband microwave insulator

An ultra-wideband, self-matching technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems of large size, deteriorated transmission performance, virtual welding, etc., to improve interconnection density and assembly reliability, improve ultra-wideband Transmission performance, avoid the effect of welding

Active Publication Date: 2019-07-12
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen from the above description that the existing high-frequency insulator has a relatively simple structure. In the ultra-broadband vertical interconnection system, an additional matching circuit needs to be assembled. The size of the additional matching circuit is generally large, and its assembly error when welding with the insulator It will deteriorate the transmission performance; and it is prone to reliability problems such as virtual welding and short circuit during the welding process
It is difficult to adapt to the development needs of high-density ultra-wideband transmission and microsystem integration of electronic equipment

Method used

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Embodiment 1

[0032] (1) The casing 1 is processed by 4J29 Kovar alloy, so that the outer diameter of the casing 1 is Ra=2mm, the inner diameter Rb=1.6mm, and the height H2=1.5mm, which is used for airtight welding with the metal box body of the microwave component.

[0033] (2) Select the dielectric constant ε r = 4 and low loss factor δ = 0.0002 glass powder as the raw material of the glass column 2, used to support the inner conductor 3 and airtight, insulating, and use beryllium bronze to process the inner conductor 3 of a cylinder with a diameter of Rd = 0.3mm , to ensure that the characteristic impedance of the insulator is 50Ω.

[0034] (3) The glass column 2 is arranged in the shell 1, the inner conductor 3 is arranged in the glass column 2, and the shell 1, the glass column 2 and the inner conductor 3 are sintered at high temperature to form figure 2 Insulator structure without mating pad 4 is shown. Wherein, the inner conductor 3 has an upper protrusion and a lower protrusion p...

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Abstract

The invention discloses a self-matching ultra-wideband microwave insulator, which comprises a housing, a glass column, an inner conductor and a matching pad, wherein the glass column is arranged in the housing, and the inner conductor is arranged in the glass column; the inner conductor is provided with an upper bulge and a lower bulge which protrude from the glass column; the matching pad includes an upper pad and a lower pad which are plated with a gold layer and used for being bonded with a circuit wafer through a gold wire or gold strip, the upper pad and the lower pad are respectively welded with the upper bulge and the lower bulge, and the dimensions of the upper pad and the lower pad are determined by simulation design according to ultra-wideband microwave transmission requirements.The self-matching ultra-wideband microwave insulator is additionally provided with the matching pad at the end part of the inner conductor so as to improve the ultra-wideband transmission performanceof microwave signals; and the matching pad is plated with the gold layer so as to adapt to the bonding of the gold wire or gold strip, thereby avoiding the welding between the insulator and the circuit wafer, thus greatly reducing the size of the vertical interconnection structure, and improving the interconnection density and assembly reliability.

Description

technical field [0001] The invention relates to the technical field of ultra-wideband microwave interconnection, in particular to a self-matching ultra-wideband microwave insulator. Background technique [0002] With the urgent demand for arraying and miniaturization of military electronic equipment, microwave insulators for interconnection and transmission of microwave signals are also developing in the direction of wider frequency band, higher frequency, smaller size and higher density. Most of the patents related to insulators are concentrated in the field of electrical engineering, and there are few patents on broadband microwave insulators. [0003] Chinese patent CN105304977A discloses a millimeter-wave ceramic insulator and its design method, which is mainly processed into a stripline and microstrip transition structure by high-temperature co-fired ceramic technology, and mainly solves the functions of signal horizontal transmission and device packaging. [0004] Chi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/00
CPCH01P1/00
Inventor 罗明彭文超张继帆肖庆
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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