A directional bridge based on three-dimensional assembly and its assembly process

A technology of three-dimensional assembly and assembly process, which is applied in the direction of circuits, measuring devices, electrical components, etc., can solve the problems of unsatisfactory high-frequency characteristics and insufficient ultra-broadband working ability, and achieve the improvement of directivity and high-frequency end working ability. Efficient tonality design and good adjustability

Inactive Publication Date: 2017-12-05
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the balun characteristics, the commonly used planar circuit implementation schemes have unsatisfactory high-frequency characteristics and insufficient ultra-wideband working capabilities

Method used

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  • A directional bridge based on three-dimensional assembly and its assembly process
  • A directional bridge based on three-dimensional assembly and its assembly process

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Embodiment Construction

[0040] The present invention is described in detail below in conjunction with accompanying drawing:

[0041] The invention is based on the directional bridge of the coaxial balun and the lumped parameter resistance power dividing circuit, figure 1 Shown is the schematic diagram of a combined directional bridge based on a coaxial balun and resistive power divider, P1 port 2 and P2 port 1 are through ports, and P3 port 3 is a coupling / isolation port. Resistors and capacitors form a resistive power dividing circuit. When the signal is transmitted in the forward direction, P1 port 2 is the input port. After the resistance power is divided, part of the power is coupled to the output of the P3 port, and part of the power is output directly through the P2 port 1; when the signal is transmitted in the reverse direction, Port 1 of P2 is the input port, and the signal is converted from unbalanced to balanced by the balun. The power dividing circuit cancels at P3 port 3, realizes signal...

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Abstract

The invention discloses a three-dimensional assembly based directional bridge and an assembly process thereof. The bridge comprises a cavity, a coaxial cable and two microstrips. The cavity is internally provided with a U-slot absorber. One end of the coaxial cable is fixed to the cavity through a connector; inner and outer conductors of the other end of the coaxial cable are jointed to the two microstrips, respectively; with one end of the coaxial cable as an origin, the inner and outer conductors of the coaxial cable serve as the two output ends of a coaxial BALUN; output signals from the two output ends arrive at a coupling port through different paths; equal length of two transmission paths is ensured, for constant amplitude cancellation. The sling structural design, the coaxial design of ultra-wideband BALUNs in the combination of cores different in magnetic conductivity, and the U-slot absorber wave-absorbing and structural support design are added to the three-dimensional assembly design, equal path control of external transmission is effectively achieved for the balance end of the coaxial BALUN, and directionality of the bridge and high-frequency end operating performance thereof are improved.

Description

technical field [0001] The invention relates to a directional electric bridge based on three-dimensional assembly and an assembly process. Background technique [0002] The directional bridge is a key component of microwave systems and microwave measuring instruments, which can conveniently complete signal directional separation, power synthesis or distribution, power sampling, etc. in a wide frequency band. Compared with the gradient coupling line broadband directional coupler, the directional bridge based on the balun and resistor power division technology performs power distribution and phase superposition on the output signal of the balun balanced end through the power division circuit to realize power coupling and directional transmission, and has a more Low operating frequency and wider octave range, more ideal directivity in the low frequency band, flatter coupling frequency response, widely used in various instruments and equipment. [0003] There are many implement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/18H01P11/00G01R17/00
Inventor 葛新灵王飞李红伟
Owner CHINA ELECTRONIS TECH INSTR CO LTD
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