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Magnetic core type 3dB bridge

A technology of magnetic core and electric bridge, applied in the field of magnetic core type 3dB electric bridge, can solve the problems of large size and complex structure of electric bridge

Active Publication Date: 2020-10-23
武汉博畅通信设备有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a magnetic core type 3dB electric bridge to solve the problems of large size and complex structure of the traditional distributed parameter 3dB electric bridge

Method used

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  • Magnetic core type 3dB bridge
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  • Magnetic core type 3dB bridge

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0024] Such as figure 1 As shown, the magnetic core type 3dB electric bridge of the present embodiment includes magnetic core inductances T1~T7 and a plurality of capacitors, and each magnetic core inductance all comprises magnetic rings and tightly glued double-strand enameled wires wound on the magnetic rings, and the magnetic core inductances T1, T2, T3, T6 and T7 are distributed sequentially along a straight line, the core axes of the magnetic ...

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Abstract

The invention provides a magnetic core type 3dB bridge, which comprises magnetic core inductors T1-T7 and a plurality of capacitors, and each magnetic core inductor comprises a magnetic ring and a tightly glued double-stranded enameled wire wound on the magnetic ring. According to the invention, the inductance coil realized by the enameled wire replaces the inductance of distribution parameters inthe traditional 3dB bridge, a traditional distributed capacitor is replaced with the capacitor, the size of the 3dB bridge is reduced, the structure is simplified, after parameter selection is conducted on the magnetic core inductor and the capacitor, the magnetic core type 3dB bridge with the frequency ranging from 1 MHz to 30 MHz is achieved, the isolation degree of the bridge is high, the insertion loss is small, the power capacity is large, and an excellent intermodulation index is achieved.

Description

technical field [0001] The invention relates to the technical field of 3dB electric bridges, in particular to a magnetic core type 3dB electric bridge. Background technique [0002] The directional coupler is a basic and universal microwave / millimeter wave signal separation device, which can be divided into single-directional and double-directional. It is widely used in various fields of microwave technology, and is generally used for signal isolation, separation and mixing, such as power monitoring, source output power stabilization, signal source isolation and transmission, etc. The 3dB bridge is a special directional coupler with a coupling degree of 3dB. The output power of the coupling arm and the through arm are equal, the phase difference of the output signal is 90°, and there is sufficient isolation between the input end and the isolation end. [0003] There are many types of 3dB bridges. In the microwave segment, stripline or microstrip directional couplers are gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/01
CPCH03H7/0115Y02B70/10
Inventor 刘泽雨蔡楚才
Owner 武汉博畅通信设备有限责任公司