Ultra-compact Wilkinson power splitter

A power divider and bisecting technology, which is applied in the direction of waveguide devices, electrical components, connecting devices, etc., can solve the problem of insufficient size reduction ratio and achieve the effect of meeting performance indicators

Pending Publication Date: 2018-11-06
LIAONING PUTIAN DIGITAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above methods have reduced the size of the Wilkinson power divider to a certain extent, for the lower frequency VHF band, the size reduction ratio is not enough

Method used

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  • Ultra-compact Wilkinson power splitter
  • Ultra-compact Wilkinson power splitter
  • Ultra-compact Wilkinson power splitter

Examples

Experimental program
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Embodiment 1

[0032]According to the principle of impedance transformation, the electrical length and characteristic impedance of each microstrip line in the hybrid transmission line can be calculated, and then the length and width of each microstrip line can be calculated. The value of each capacitance and inductance can also be calculated. And can use ADS simulation software for auxiliary design.

[0033] In this embodiment, the characteristic impedance of the microstrip line of the input port, the first output port, and the second output port is 50Ω; in one embodiment, the dielectric plate 1 is polytetrafluoroethylene, and its dielectric constant is 4.4. The thickness is 1.6mm.

[0034] In this embodiment, the first series microstrip line 311 is arc-shaped, with a radius of 13.7mm, a width of 0.64mm, and a central angle of 49.7°. The first parallel microstrip line 312 is rectangular with a length of 3.81 mm and a width of 1.35 mm. The second series microstrip line 313 is arc-shaped, w...

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Abstract

The invention discloses an ultra-compact Wilkinson power splitter. The splitter comprises a medium board, microstrip lines, mixed transmission lines, an isolated resistor and an isolated capacitor, wherein the microstrip lines comprise an input microstrip line, a first output microstrip line, and a second output microstrip line, the mixed transmission lines comprise a first mixed transmission lineand a second mixed transmission line, one end of the first mixed transmission line is connected with the input microstrip line, the other end of the first mixed transmission line is connected with the first output microstrip line, one end of the second mixed transmission line is connected with the input microstrip line, the other end of the second mixed transmission line is connected with the second output microstrip line, one end of the isolated resistor is connected with the second output microstrip line, the other end of the isolated resistor is connected with one end of the isolated capacitor, and the other end of the isolated capacitor is connected with the first output microstrip line. A new mixed transmission line replaces a traditional 90-degree electric length of microstrip line.The total electric length of the mixed transmission line is only 9 degree, so that the size of the power splitter is reduced greatly.

Description

technical field [0001] The invention relates to the field of power dividers, in particular to an ultra-miniature Wilkinson power divider. Background technique [0002] Wilkinson power divider is an indispensable passive device in microwave receiving and transmitting systems. Whether it is microwave communication, radar, remote sensing, electronic reconnaissance, electronic countermeasures or microwave measurement systems, there is a demand for equal power distribution of signals. . Because of its simple structure and easy fabrication, Wilkinson power splitters are widely used in microwave power amplifiers, mixers, feeding networks of antenna arrays, Doherty amplifiers and other microwave systems. However, the traditional Wilkinson power splitter is composed of two transmission lines with an electrical length of 90°, which leads to the traditional Wilkinson power splitter occupying a large circuit area, especially in the lower frequency band. Therefore, in applications with...

Claims

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Application Information

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IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor房少军李超宋春水李英杰胡永刚
OwnerLIAONING PUTIAN DIGITAL CO LTD