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Miniaturized broadband high-balance-degree distributor

A technology of balance and distributor, applied in the direction of waveguide devices, electrical components, connection devices, etc., can solve the problems of oversized distributor, shortened physical size, and small occupied space, so as to improve power amplifier efficiency and compact circuit system , the effect of compact structure

Inactive Publication Date: 2018-11-23
杭州维慕德科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that the size of the multi-section orthogonal bridge distributor is too large, and propose a compact broadband high-balance distributor, which is characterized in that it uses a semi-lumped parameter circuit to realize multi-section bridge The weak coupling part effectively shortens its physical size, occupies a small space, has high balance, and is easy to use in RF systems

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Embodiment Construction

[0038] The miniaturized broadband high-balance distributor designed by the present invention is described in detail in conjunction with the accompanying drawings and embodiments as follows:

[0039] A miniaturized broadband high-balance distributor designed by the present invention, the principle is as follows Figure 4 As shown, it includes three orthogonal bridges connected in series. Among them, 41 and 42 are weak coupling bridges with a coupling degree of -19dB realized by using semi-lumped parameters, and 43 is a strong coupling bridge with a coupling degree of -2dB formed by a quarter-wavelength broadside coupled strip line. If port 411 is used as an input port, port 431 is a straight-through output port, port 412 is a coupling output port, and port 432 is an isolation port. When used, a matching load must be connected. The parameters and principles of the weak coupling sections 43 and 41 are exactly the same, and only the principle and implementation method of 41 are d...

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Abstract

The invention relates to a miniaturized broadband high-balance-degree distributor and belongs to the technical field of radio-frequency circuits. The miniaturized broadband high-balance-degree distributor adopts a multi-section quadrature bridge design and comprises a plurality of sections of weak coupling bridge, the coupling degree of which is smaller than -20 dB and a plurality of sections of strong coupling bridges, the coupling degree of which is greater than -20dB. The miniaturized broadband high-balance-degree distributor is characterized in that the multi-section coupling design schemeimproves the amplitude balance characteristic of the distributor significantly. The miniaturized broadband high-balance-degree distributor is further characterized in that the weak coupling circuit adopts the achievement manner of lumped capacity and distribution parameter, thereby effectively reducing the circuit volume. The miniaturized broadband high-balance-degree distributor in the inventionis compact in structure and good in replication performance; and excellent amplitude balance is achieved within a wide frequency band.

Description

Technical field [0001] The invention belongs to the technical field of radio frequency circuits, and in particular relates to an improved design of a broadband high-balance distributor. The invention can realize highly balanced power distribution in the whole frequency band of 300MHz-500MHz, the typical amplitude balance degree is within ±0.12dB, and the structure is compact. On the one hand, a good amplitude balance can reduce the synthesis loss and improve the power amplifier efficiency; on the other hand, it will also ensure that the synthesis power amplifier has a good pre-correction effect and improve the linearity index of the power amplifier. The unique semi-lumped parameter design of the present invention greatly reduces the size of the circuit so as to design a power amplifier unit with a smaller volume and make the whole circuit system small and compact. Background technique [0002] The quadrature bridge is a power distribution and synthesis device commonly used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 姚海祥
Owner 杭州维慕德科技有限公司
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