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Wilkinson power divider with Chebyshev filter characteristic based on multi-segment coupling line cascading and optimization establishing method of Wilkinson power divider

A power divider, Chebyshev's technology, used in waveguide-type devices, design optimization/simulation, instrumentation, etc.

Active Publication Date: 2019-04-26
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention designs and develops a Wilkinson power divider with Chebyshev filter characteristics based on the cascading of multi-section coupled lines. One of the invention objectives of the present invention is to replace traditional transmission lines with coupled lines to solve the line to achieve the same Chebyshev equi-ripple problem

Method used

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  • Wilkinson power divider with Chebyshev filter characteristic based on multi-segment coupling line cascading and optimization establishing method of Wilkinson power divider
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  • Wilkinson power divider with Chebyshev filter characteristic based on multi-segment coupling line cascading and optimization establishing method of Wilkinson power divider

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Experimental program
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Embodiment

[0143] First find out the specific parameters of the corresponding model

[0144] Such as image 3 As shown, the model established by the cascading of four coupled lines is established by even-mode analysis. In this embodiment, the even-mode of the Wilkinson power divider is equivalent to an impedance converter with 100 Ω at the source end and 50 Ω at the load end. The ABCD matrix method analyzes the even mode, and the ABCD matrix of a coupled line is:

[0145]

[0146] The overall ABCD matrix is:

[0147]

[0148] in,

[0149]

[0150]

[0151]

[0152]

[0153]

[0154]

[0155]

[0156]

[0157]

[0158]

[0159]

[0160]

[0161] The transfer function S of the model 21 Expressed by the following formula:

[0162]

[0163] where k=Z l / Z s , can be derived from the above formula:

[0164]

[0165] Among them, X m =(a m -k·d m ), Y n =(b n -k·c n );

[0166] Among them, the transfer function of the 4th-order Che...

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Abstract

The invention discloses a Wilkinson power divider with a Chebyshev filter characteristic based on multi-segment coupling line cascading. The Wilkinson power divider comprises a source terminal impedance unit and two sets of load terminal impedance units, and is characterized in that the source terminal impedance unit and the two sets of load terminal impedance units are connected by two sets of power distribution units which are connected in series through a plurality of even-number-segment coupling lines and then connected in parallel; one ends of the power distribution units are separately and simultaneously connected to the source terminal impedance unit, and the other ends of the power distribution units are separately and simultaneously connected to the load terminal impedance units through at least one of equal number of transmission lines; and both ends of coupling lines connected to the transmission lines are connected by a resistor. The invention further discloses an optimization establishing method of the Wilkinson power divider with the Chebyshev filter characteristic based on multi-segment coupling line cascading.

Description

technical field [0001] The invention relates to the technical field of radio frequency circuit microstrip line device manufacturing, in particular to a Wilkinson power divider with Chebyshev filtering characteristics based on multi-segment coupled line cascading and an optimization establishment method thereof. Background technique [0002] With the development of society, people demand more and more elements for information. Whether it is a civilian communication system or a military radar system, the demand for stability in the process of information transmission is also getting higher and higher. In communication system, radar system and electronic countermeasure system, microwave power divider is a crucial passive device. Its function is to divide the signal at the input end into multiple channels according to the demand, equally or unequally, to transmit information, so as to achieve the purpose of power distribution. When high power is needed to transmit information, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/16H01P11/00G06F17/50
CPCG06F30/20G06F30/39H01P5/16H01P11/00
Inventor 王小龙张楠吴斌王庆凤卢革宇
Owner JILIN UNIV
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