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Broadband filtering power divider capable of realizing high power dividing ratio

A technology of power divider and power divider ratio, which is applied to waveguide devices, circuits, connection devices, etc., and can solve problems such as low power divider ratio and narrow bandwidth of power divider

Active Publication Date: 2020-10-27
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a broadband filter power divider capable of achieving a high power division ratio, so as to solve the problems of narrow bandwidth and low power division ratio of the existing power divider

Method used

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  • Broadband filtering power divider capable of realizing high power dividing ratio
  • Broadband filtering power divider capable of realizing high power dividing ratio
  • Broadband filtering power divider capable of realizing high power dividing ratio

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Embodiment Construction

[0021] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second" and so on in the embodiments of the present invention, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not be interpreted as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realizat...

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Abstract

The invention discloses a broadband filtering power divider capable of realizing a high power dividing ratio. The broadband filtering power divider comprises a lambda / 4 impedance converter arranged infront of a power dividing node and a plurality of broadband impedance conversion networks arranged behind the power dividing node and connected in parallel, the lambda / 4 impedance converter is used for reducing the input impedance value at the power division node and an in-band pole is introduced to improve the power division ratio and bandwidth of the power divider at the same time; and the broadband impedance conversion networks are used for forming each filtering power branch together with the lambda / 4 impedance converter so as to jointly realize filtering and power distribution in a broadband range. Compared with the prior art, the power divider has the remarkable advantages of being high in power division ratio, wide in bandwidth and capable of achieving filtering power division implantation. The power divider can be expanded into a multi-path high-power-dividing-ratio filtering power divider, and can be used in a feed network of an array antenna.

Description

technical field [0001] The invention relates to the technical field of power splitters, in particular to a broadband filter power splitter capable of realizing a high power division ratio. Background technique [0002] The feed network is an integral part of most antenna arrays and is used to transfer and distribute energy from the feed port to each antenna element with the desired power and phase distribution. In the design of the feed network, unequal power splitters are often used to improve the performance of the antenna array, such as reducing sidelobes and controlling beams. [0003] Currently, there are three main methods for designing unequal power splitters. The first method is to design λ / 4 impedance converters in each power branch to achieve unequal power distribution. This method can improve the power division ratio to a certain extent, but the power division ratio is limited by the actual line width that can be processed. limit, and the bandwidth decreases wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12H01P1/20
CPCH01P5/12H01P1/20
Inventor 郭欣王迪吴文
Owner NANJING UNIV OF SCI & TECH
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