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Coupling device for coaxial waveguide wideband orthogonal mode

A technology of orthogonal mode coupling and coaxial waveguide, which is applied to connecting devices, waveguide-type devices, electrical components, etc., can solve the problem of insufficient design of coaxial waveguide orthogonal mode coupling device, weaken the excitation of high-order modes in the common waveguide, and reduce the positive It can solve the problems of AC broadband signal isolation, etc., to achieve the effect of excellent impedance characteristics and port isolation, low processing cost, and widening working bandwidth.

Inactive Publication Date: 2015-02-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem of insufficient design of the existing coaxial waveguide orthogonal mode coupling device, the present invention further proposes a coaxial waveguide broadband orthogonal mode coupling device
[0005] The beneficial effects of the present invention are: the present invention greatly weakens the excitation of high-order modes in the public waveguide by adopting the symmetrical structure of the turnstile connector, significantly widens the working bandwidth of the coupler, and successfully solves the problem of satellite communication based on the coaxial structure. Problems of Feed Antenna in Realizing Orthogonal Broadband Signal Isolation in Coaxial Waveguide in Low Frequency Band

Method used

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  • Coupling device for coaxial waveguide wideband orthogonal mode
  • Coupling device for coaxial waveguide wideband orthogonal mode
  • Coupling device for coaxial waveguide wideband orthogonal mode

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 Of Figure 4 Describe this embodiment, a coaxial waveguide broadband orthogonal mode coupling device described in this embodiment includes a common waveguide 1, a metal cone 2, a turnstile connector 3, two power combiners 4, and two impedance matchers 5 and two standard rectangular waveguides 6, the lower end of the common waveguide 1 is connected to the upper surface of the turnstile connector 3 through the metal cone 2, and the short-circuit surface in the common waveguide 1 is connected to the metal cone 2, and the turnstile is connected The first arm 3-1 and the third arm 3-3 of the device 3 are connected to the power combiner 4, each power combiner 4 is respectively connected to a standard rectangular waveguide 6 through an impedance matching device 5, and the turnstile is connected to The second branch 3-2 and the fourth branch 3-4 of the device 3 are connected to a power combiner 4, and each power combiner 4 is ...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination Figure 1 to Figure 4 To describe this embodiment, four rectangular coupling windows 8 are evenly distributed on the lower part of the common waveguide 1 of the coaxial waveguide broadband orthogonal mode coupling device described in this embodiment. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination Figure 1 to Figure 4 Describe this embodiment, the first arm 3-1, the second arm 3-2, and the third arm 3 of the turnstile connector 3 of a coaxial waveguide broadband orthogonal mode coupling device described in this embodiment -3. The curved waveguides in the fourth arm 3-4 are all E-plane curved waveguides. Other components and connections are the same as those in the first embodiment.

[0010] working principle

[0011] The coaxial waveguide broadband orthogonal mode coupler of the present invention includes a common waveguide, a turnstile connector, a power combiner, an impedance matcher and a standard rectangular waveguide, wherein the power combiner is connected to the common waveguide through the turnstile connector , the common waveguide is a coaxial waveguide, which is used as a shared channel for sending and receiving signals. The arms are respectively connected with two power combiners, and then connected w...

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Abstract

The invention discloses a coupling device for a coaxial waveguide wideband orthogonal mode and relates to the coupling device, in particular to the coupling device for the coaxial waveguide wideband orthogonal mode. According to the coupling device disclosed by the invention, the problem that the existing coupling device for the coaxial waveguide wideband orthogonal mode is insufficient in design is solved. The coupling device comprises a common wavewide, a metal cone, a turnstile junction, two power combiners, two impedance matchers and two standard rectangular waveguides, wherein the lower end of the common waveguide is connected with the upper surface of the turnstile junction through the metal cone; a short road surface in the common waveguide is connected with the metal cone; a first support arm and a third support arm of the turnstile junction are connected with the power combiners; each power combiner is connected with one standard rectangular waveguide through one impedance matcher; a second support arm and a fourth support arm of the turnstile junction are connected with one power combiner; each power combiner is connected with one standard waveguide through one impedance matcher. The coupling device disclosed by the invention is applied to the field of wireless communication.

Description

technical field [0001] The invention relates to a coupling device, in particular to a coaxial waveguide broadband orthogonal mode coupling device, which belongs to the field of wireless communication. Background technique [0002] Due to the advantages of cost and structure, the common feed antenna for transmitting and receiving is widely used in the field of satellite communication. It is required to work in separate frequency bands, and at the same time, it is required to achieve high polarization isolation. With the development of satellite communication technology, multi-band integrated feed antenna is expected to be realized, so as to use one satellite communication antenna terminal to complete the function of multi-band signal transmission and reception. The difficulty of this design lies in how to realize the ideal impedance characteristics and radiation characteristics in multiple frequency bands at the same time. A novel satellite communication feed antenna that ca...

Claims

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Application Information

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IPC IPC(8): H01P5/16
Inventor 邱景辉褚红军张鹏宇
Owner HARBIN INST OF TECH
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