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Isolator

A technology of isolators and cavities, which is applied in the direction of waveguide devices, circuits, electrical components, etc., can solve the problems of isolator performance deterioration, easy grounding, reference layer coordination, etc., and achieve the effect of avoiding performance deterioration

Active Publication Date: 2015-09-16
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the surface mount isolator is a separate device, when using the surface mount isolator, it needs to be connected to the PCB by surface mount technology (Surface Mount Technology, SMT) soldering, which is prone to grounding, reference layer coordination, etc. problems that can degrade the performance of the isolator

Method used

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] The embodiment of the present invention provides an isolator, which can avoid welding while satisfying a small volume, so as to avoid performance deterioration of the isolator caused by welding.

[0020] see figure 2 , the isolator of this embodiment includes a cavity 1, a PCB with a transmission microstrip line 2 etched with a transmission microstrip line 2 is placed in the cavity 1, and a main circuit (not shown in the figure) is also arranged on the PCB, and the...

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Abstract

The invention discloses an isolator. The isolator comprises a cavity, a PCB is placed in the cavity, transmission microstrip lines are formed on the PCB via corrosion, and the PCB includes a main loop. The isolator transmits forward signals of the main loop and isolates backward signals, the cavity is covered with a shielding cover, the shielding cover includes a protruded cylindrical hole, the cylindrical hole is placed above the transmission microstrip lines, and the transmission microstrip lines include a ferrite, a permanent magnet and a threaded plug which are successively placed via the cylindrical hole. The isolator can avoid welding while the isolator can be small in size.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an isolator. Background technique [0002] With the continuous development of microwave communication technology, microwave outdoor units are more and more widely used. Faced with the pressure of production costs and labor costs, the volume of microwave outdoor units is increasingly demanding. The isolator is an indispensable part of the microwave outdoor unit. The isolator plays the role of inter-stage isolation, crosstalk prevention, impedance matching, etc. The isolator also needs to face the requirement of small size. Through research on different schemes such as waveguide isolator, drop-in isolator, microstrip filter, and surface-mount isolator, it is found that the isolator in the form of surface-mount isolator is the optimal solution for the small size of the microwave outdoor unit, but similar The surface-mount isolator needs to be soldered and connected ...

Claims

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Application Information

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IPC IPC(8): H01P1/36
CPCH01P1/36H01P1/38
Inventor 王辉曹国祥赵青杨竹溪
Owner SHANGHAI HUAWEI TECH CO LTD
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