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Small unequal Wilkinson power divider

A technology of power divider and underlying metal, applied in waveguide-type devices, electrical components, connecting devices, etc., can solve problems such as large size, and achieve the effects of size reduction, size controllability, miniaturization, and small circuit loss

Inactive Publication Date: 2016-02-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the document "Anovelpower-dividerdesignwithunequalpower-dividingratioandsimplelayout", an unequal Wilkinson power divider with a simple structure is proposed, but the size is too large

Method used

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  • Small unequal Wilkinson power divider
  • Small unequal Wilkinson power divider
  • Small unequal Wilkinson power divider

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Embodiment

[0021] Such as figure 1 As shown, a miniaturized unequal Wilkinson power divider includes an upper microstrip structure, an isolation resistor, a compensation capacitor, an intermediate dielectric substrate and a bottom metal floor, and the upper microstrip structure is printed on the intermediate dielectric substrate On the upper surface, the underlying metal floor is located on the lower surface of the intermediate dielectric substrate. By redesigning the two different arms between the input terminal and the isolation resistor, their electrical lengths are greatly reduced, and the compensation capacitor is used to ensure circuit performance. ; The upper microstrip structure is a miniaturized unequal Wilkinson power divider, including a first path and a second path, the first path and the second path share the input port 1, and the first path is composed of The first microstrip line 2, the second microstrip line 4, the third microstrip line 6 and the first output port 8 are c...

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Abstract

The invention discloses a small unequal Wilkinson power divider which comprises an upper layer micro-strip structure, a compensation capacitor, an isolation resistor, an intermediate medium substrate and a bottom layer metal floor. The upper layer micro-strip structure is printed on the upper surface of the intermediate medium substrate, the bottom layer metal floor is located on the lower surface of the intermediate medium substrate, and the upper layer micro-strip structure serves as a small unequal Wilkinson power divider body composed of four arms. The compensation capacitor is connected between two arms in a bridging mode, and the isolation resistor is connected between the other two arms in a bridging mode. Compared with a traditional Wilkinson power divider, and the electrical length of the arm between the input end and the isolation resistor can be greatly reduced so as to achieve the function of reducing the size of a circuit. As a whole, the size of the whole unequal Wilkinson power divider can be reduced by nearly 50%, and the power divider has excellent performance.

Description

technical field [0001] The invention relates to a power divider, in particular to a miniaturized unequal Wilkinson power divider. Background technique [0002] Power splitters play an important part in modern wireless systems, especially in antenna arrays and power combining networks. Today, in wireless systems, compact size has more demands. Therefore, one of its components, the power divider, needs to be miniaturized accordingly. At present, many scholars at home and abroad have carried out many studies based on this aspect. [0003] A traditional Wilkinson power divider consists of multiple quarter-wavelength lines (based on the design frequency) with different characteristic impedances. However, this area needs to be reduced for many applications. Generally, the following two ways are used to reduce the area: 1. Based on new manufacturing technologies and new materials, such as low-temperature co-fired ceramics and multilayer liquid crystal polymer substrates; 2. Usi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 章秀银杜志侠林跃龙赵小兰
Owner SOUTH CHINA UNIV OF TECH
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