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Transformer-based differential coupling circuit and dielectric-integrated suspension line differential coupler

A differential circuit and differential coupling technology, applied in logic circuit coupling devices, logic circuit connection/interface layout, instruments, etc., can solve the problems of poor cross-mode signal conversion suppression function and large volume of differential couplers, and achieve light weight, Low cost and small size

Active Publication Date: 2019-03-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a transformer-based differential coupling circuit and a dielectric-integrated suspension line differential coupler to solve the problem of common-mode signal suppression and cross-mode signal conversion when the current differential coupler is large in size and works on differential-mode signals The problem of poor suppression

Method used

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  • Transformer-based differential coupling circuit and dielectric-integrated suspension line differential coupler
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  • Transformer-based differential coupling circuit and dielectric-integrated suspension line differential coupler

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Embodiment 1

[0034] This embodiment discloses a transformer-based differential coupling circuit, such as figure 1 as shown, figure 1 A schematic diagram of a transformer-based differential coupling circuit provided by Embodiment 1 of the present invention.

[0035]In this embodiment, the transformer-based differential coupling circuit includes four differential ports, the first differential port includes the first single port port1 and the fifth single port port5, the second differential port includes the second single port port2 and the sixth single port Port port6, the third differential port includes the third single port port3 and the seventh single port port7, the fourth differential port includes the fifth single port port5 and the eighth single port port8; wherein, between the first differential port and the second differential port A first differential circuit is provided, and the first differential circuit specifically includes a first inductance coil L1, a second inductance coil...

Embodiment 2

[0068] This embodiment discloses a dielectric-integrated suspension line differential coupler comprising the transformer-based differential coupling circuit described in Embodiment 1, and the transformer-based differential coupling circuit is arranged on a suspension line circuit board.

[0069] Such as figure 2 , image 3 as shown, figure 2 A cross-sectional view of the dielectric-integrated suspension line differential coupler provided for Embodiment 2 of the present invention, image 3 A three-dimensional perspective view of the dielectric-integrated suspension line differential coupler provided by Embodiment 2 of the present invention.

[0070] In this embodiment, the dielectric-integrated suspension line differential coupler includes the transformer-based differential coupling circuit described in Embodiment 1 and a dielectric-integrated suspension line platform, and the dielectric-integrated suspension line platform includes five layers from top to bottom The lamina...

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PUM

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Abstract

The invention discloses a transformer-based differential coupling circuit and a medium-integrated suspension line differential coupler. Eight single-ended ports are provided to form four differential ports. A differential circuit is arranged between every two differential ports. Each differential The circuit includes two coils and four capacitors, two capacitors are connected in parallel between the two coils, and a capacitor is connected in parallel at both ends of each coil, so as to ensure that the differential coupler can achieve differential mode operation, common mode rejection and crossover in a certain frequency band Mode conversion suppression. At the same time, the differential coupler also has the characteristics of small size, light weight, low power consumption, self-encapsulation, integrated integration, electromagnetic shielding, and low cost, which further improves the performance of the differential coupler.

Description

technical field [0001] The invention relates to the technical field of radio frequency microwave circuits, in particular to a transformer-based differential coupling circuit and a dielectric integrated suspension line differential coupler. Background technique [0002] With the rapid development of modern wireless communication technology, radio frequency integrated circuits are developing in the direction of high integration and small volume, which also puts forward higher requirements for electromagnetic anti-interference ability. Differential circuit, also called balanced circuit, has better common-mode rejection function and higher environmental noise suppression ability than single-ended circuit. As a power combining or distributing network, the coupler provides a certain output phase difference between ports. It is widely used in radio frequency microwave circuits and systems, and can be used in mixers, amplifiers, antenna feed networks, etc. In the existing different...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/0175G06F17/50
CPCG06F30/20H03K19/017545
Inventor 马凯学王勇强牟首先
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA