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Double balanced mixer device

A technology of double-balanced mixers and mixers, which is applied in the direction of modulation conversion balance devices, etc., can solve the problems of low isolation, easy generation of high-order modes, and poor broadband performance, so as to improve isolation and reduce dispersion effects , strong directional effect

Inactive Publication Date: 2014-06-25
XIAN UNIV OF POSTS & TELECOMM
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the embodiments of the present invention is to provide a double-balanced mixer device, which aims to solve the problems of poor broadband performance, low isolation, and high-order modes that exist in existing mixers

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, the device of the double-balanced mixer in the embodiment of the present invention is mainly composed of a mixer cavity 9, a mixer circuit 10, and a K-type connector 11;

[0029] The mixer circuit 10 is arranged inside the mixer cavity 9, and the K-type connector 11 is arranged on the left side of the mixer circuit 10;

[0030] Such as figure 2 As shown, the mixer circuit 10 of the embodiment of the present invention also inc...

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Abstract

The invention discloses a double balanced mixer device which comprises a mixer chamber body, a mixer circuit, and a K type joint; the mixer circuit further comprises a mixer tube, a gold belt, gold wires, 50 omega coplanar waveguide, a coupling slot line, a 60 omega slot line, a dielectric substrate, and a lambada / 8 short-circuit wire. According to the double balanced mixer device, the K type joint is adopted, the 50 omega coplanar waveguide is selected as the signal end and is transited to the coupling slot line, the coupling slot line is gradually changed to the 60 omega slot line and is added to the mixer tube, the 50 omega coplanar waveguide is coupled to the slot line by the adoption of a gold belt coupling mode, and capacitive quality of mixer diodes is counteracted; the broadband barron is achieved by the adoption of a magic T network which is composed of the coplanar waveguide, the coupling slot line and the slot line, crisscross of transmission lines is not needed and strong directivity is achieved, and isolation is improved; color dispersion effect of the coplanar waveguide is relieved; a golden wire bridge joint mode is adopted, so that the occurrence of a higher order mode is inhibited, and the higher order mode of the coupling slot line stimulated by radio frequency in the coplanar waveguide is prevented.

Description

technical field [0001] The invention belongs to the technical field of mixers, in particular to a double-balanced mixer device. Background technique [0002] A double-balanced mixer is usually composed of a mixing diode bridge, a signal balun and a local oscillator balun. The balun is a kind of balanced-unbalanced converter. Surface microstrip structure, coupled line structure, slot line structure and other forms. The mixer tube bridge is composed of four mixing diodes, and there are usually three structures: ring, star, and cross, and the choice should be combined with the design of the balun. Due to the multi-octave bandwidth of the broadband balun, coupled with the inherent advantages of the double-balanced mixer, it has the advantages of wide frequency band, high isolation and high-medium frequency compared with the single-balanced mixer. [0003] In the millimeter wave frequency band, due to the serious dispersion effect of microstrip and other planar transmission lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D7/14
Inventor 杨怿菲尚建荣张亚婷樊宏张薇薇高敏徐静萍巩艳华弓楠刘智芳
Owner XIAN UNIV OF POSTS & TELECOMM
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