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Compact Wilkinson power divider

A power divider, a compact technology, applied in waveguide-type devices, electrical components, connecting devices, etc., can solve the problem of large area of ​​Wilkinson power divider, achieve good phase consistency and standing wave characteristics, reduce Small area and simple structure

Inactive Publication Date: 2018-01-26
TIANJIN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a compact Wilkinson power divider, which solves the problem of large area of ​​the traditional Wilkinson power divider, and at the same time realizes the function of power distribution, which is more efficient. Suitable for IC applications

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  • Compact Wilkinson power divider
  • Compact Wilkinson power divider
  • Compact Wilkinson power divider

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Embodiment Construction

[0027] In order to illustrate the technical solution of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

[0028] For a traditional Wilkinson power splitter, there is a transmission line with an electrical length of 90 degrees between the input port and the two output ports, such as figure 1 As shown, its actual physical size is long, and it is difficult to realize in PCB, especially in integrated circuit. The present invention effectively utilizes the equivalent principle of the transmission line, and the 90-degree transmission line is equivalent to the structure of a section of shorter transmission line and two parallel capacitors, such as figure 2 As shown, the area of ​​the traditional Wilkinson power divider is effectively reduced, and the structure is simple and easy to...

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Abstract

The invention discloses a compact Wilkinson power divider, which comprises an input port, a first output port and a second output port, wherein the input port is connected with the first output port through an input line, a first transmission line and a first output line which are sequentially connected in series; the input port is connected with the second output port through the input line, a second transmission line and a second output line which are sequentially connected in series; the intersected common end of the first transmission line and the second transmission line is connected witha grounded first capacitor in parallel, the other end of the first transmission line is connected with a grounded second capacitor in parallel and the other end of the second transmission line is connected with a grounded third capacitor in parallel; and a direct isolation resistor is connected between the first transmission line and the second transmission line. The problem of relatively large area of a traditional Wilkinson power divider is solved, meanwhile, the function of equal power distribution is achieved, and the compact Wilkinson power divider is suitable for PCB-level applicationsand integrated circuit applications.

Description

technical field [0001] The invention belongs to the field of microwave engineering, and more specifically relates to a compact Wilkinson power divider. Background technique [0002] A power divider (referred to as a power divider) refers to a device that can divide one input signal into two or more output signals that are the same or different. It can realize the distribution and combination of multiple electromagnetic signals and is an indispensable part of radio frequency circuits. functional unit. The most commonly used power splitter is a two-way power splitter, which is widely used in antenna array feed networks and power combining circuits. In occasions that do not require high power capacity, power splitters designed using microstrip lines have been widely used in mobile communications, aerospace, radar detection and other fields due to their light weight, low cost, and simple structure [1]. [0003] According to different circuits, the power divider can be divided ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/16
Inventor 马建国王彩霞傅海鹏
Owner TIANJIN UNIV
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