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Double-frequency filtering power divider for WLAN (wireless local area network)

A power divider and filter technology, which is applied in waveguide devices, connection devices, electrical components, etc., can solve problems such as the inability to design filter power dividers, and achieve miniaturization design, broadband performance, and space reduction The effect of occupation

Inactive Publication Date: 2017-06-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that it is impossible to design a smaller-sized filter power splitter while satisfying ultra-wideband power division, and proposes a dual-frequency filter power splitter applied to WLAN

Method used

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  • Double-frequency filtering power divider for WLAN (wireless local area network)
  • Double-frequency filtering power divider for WLAN (wireless local area network)
  • Double-frequency filtering power divider for WLAN (wireless local area network)

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Embodiment Construction

[0027] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] The present invention provides a dual-frequency filter power divider applied to WLAN, such as figure 1 As shown, it includes a substrate 1 , a broadband power divider 2 and a dual-band filter 3 . The wideband power splitter 2 and the dual-band filter 3 are respectively fixed (such as welding, sticking, etc.) on the substrate 1 . The dual-frequency filter 3 includes two identical double-stage SIR filters arranged mirror-symmetrically on the substrate 1 , and the output terminals of the two double-stage SIR filters are the output terminals of the dual-frequency filter power splitter. The broadband power splitter 2 is arranged between two double-order SIR filters, which reduces space occupation to a certain extent, and is beneficial to the miniaturization design of the entire dual-frequency filter power splitter. The input end of the broadband powe...

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Abstract

The invention discloses a double-frequency filtering power divider for WLAN (wireless local area network). The double-frequency filtering power divider comprises a substrate (1), a broadband power divider (2) and a double-frequency filter (3). The double-frequency filtering power divider has the advantages that the filtering and power distribution functions are integrated, two resonance points are produced at the working frequency band of the WLAN, and the miniature design is favorably realized in a WLAN communication system; the broadband power divider (2) is of a T-shaped node structure, the broadband property is realized, and the insertion loss is less than the insertion loss of the traditional Wilkinson power divider; the basic type of the double-frequency filter (3) adopts a two-order SIR (step impedance resonator), and two different resonance points can be obtained by adjusting the widths and lengths of two micro band lines of the SIR.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave technology, and in particular relates to the design of a dual-frequency filter power divider applied to WLAN. Background technique [0002] The rapid development of science and technology has brought human society into the information age, and one of the main symbols of the information age is the rapid and extensive transmission of information. In order to meet people's requirements for convenience and real-time information transmission, the main mode of information transmission has gradually evolved from wired transmission to wireless transmission. With the development of the wireless transmission mode, a series of communication systems have been developed, among which WLAN (Wireless Local Area Network, indoor wireless local area network) is occupying its place in the communication system with a rapid momentum. [0003] In addition, the rapid development of modern wireless communicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203H01P5/12
CPCH01P1/20381H01P5/12
Inventor 王志刚王同同吕俊杰周运强徐锐敏延波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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