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5G broadband Wilkinson power divider

A power divider and broadband technology, applied in the field of microwave transmission devices, can solve problems such as congestion, achieve high isolation, facilitate PCB circuit integration, and reduce coupling effects

Inactive Publication Date: 2019-10-25
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the division of high-frequency bands is becoming more and more dense and the use is becoming more and more crowded, Wilkinson power splitters that can only work in narrow bands can no longer meet industry requirements

Method used

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  • 5G broadband Wilkinson power divider
  • 5G broadband Wilkinson power divider
  • 5G broadband Wilkinson power divider

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Please combine figure 1 , the 5G broadband Wilkinson power divider is located on the dielectric layer. The dielectric layer in this embodiment is a Rogers plate. Specifically, the dielectric layer is made of alumina ceramics with a dielectric constant of 2.2. The 5G broadband Wilkinson power divider includes input port 1, output port 1 8, output port 2 9, branch line 1, branch line 2, isolation resistor 10, isolation resistor 2 11 and isolation resistor 3, which are set on the medium layer 12.

[0037] Please combine figure 2 , the input port 1 can be a straight microstrip line, the length of the input port 1 in the horizontal direction is 6.79 mm, and the width in the vertical direction is 2 mm.

[0038] The output port one 8 may adopt an L-shaped microstrip line as a whole. The length and width of output port one 8 in the horizontal direction are 6 millimeters and 1 millimeter respectively, and the length of output port one 8 in the vertical direction is 6 milli...

Embodiment 2

[0056] The difference between this embodiment 2 and the embodiment 1 is that this embodiment 2 is a simulation test of the 5G broadband Wilkinson power divider in the embodiment 1.

[0057] Please combine figure 2 , which can reflect the reflection coefficient of the input port. In principle, the smaller the value, the better. It can be seen from the simulation results that the return loss values ​​in the working frequency band are all less than -20dB.

[0058] Please combine image 3 , which reflects the attenuation of the signal after passing through the device. Because it is a power splitter, the loss is expected to be 3dB in principle. From the simulation results, it is basically around -3dB in the working frequency band.

[0059] Please combine Figure 4 , reflects the result of the isolation degree. In principle, it is hoped that the isolation degree is large enough. Here, it can be seen from the simulation results that it is above 20dB within the working frequency b...

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Abstract

The invention discloses a 5G broadband Wilkinson power divider, and relates to the technical field of microwave transmission devices. The 5G broadband Wilkinson power divider positioned on a dielectric layer comprises an input port and first and second output ports arranged in the dielectric layer, an input and output matched first branch line is arranged between the input port and the first output port, an input and output matched second branch line is arranged between the input port and the second output port, and first, second and third isolating resistors are arranged successively along the signal transmission direction between the first and second branch lines. The Wilkinson power divider works in the frequency band of 1.45GHz-5.35GHz, the bandwidth of the Wilkinson power divider canbe broadened effectively, and 5G work frequency band can be covered.

Description

technical field [0001] The invention relates to the technical field of microwave transmission devices, in particular to a 5G broadband Wilkinson power divider. Background technique [0002] Power dividers, also known as power combiners, or power dividers for short, are widely used in microwave radio frequency systems such as mixers, power amplifiers, massive MIMO array antennas, and phased array radar antennas. The power splitter is a device that can divide the power of one input signal into multiple outputs equally or unequally. At the same time, the device can be reversed and used as a power combiner. It is used in base stations, repeaters, and indoor distribution systems. In the field of mobile communication engineering, the average / non-average distribution processing of microwave signals is an indispensable microwave signal distribution device in mobile communication systems. [0003] At present, the common power splitters mainly include: T-shaped power splitter, Gysel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 郑娟顾涓涓
Owner HEFEI UNIV
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