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Multiplex filter coupling system and method

A coupling system and filter technology, applied in the field of electromagnetism, can solve the problems of unresolved reactance and channel interference.

Active Publication Date: 2017-06-13
FUJIAN XINGHAI COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this has a disadvantage: when some of the channels are to be removed due to frequency collisions, etc., the reactance cannot be canceled, resulting in mutual interference between channels

Method used

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  • Multiplex filter coupling system and method

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Embodiment Construction

[0033] In order to describe the technical content, achieved goals and effects of the present invention in detail, the following descriptions will be made in conjunction with the embodiments and accompanying drawings.

[0034] The most critical idea of ​​the present invention is: first increase the reactance value of each channel, and then match the load resistance.

[0035] Please refer to figure 1 , a coupling system of a multi-channel filter provided by the present invention includes: more than two filters 1, a coupling device 2 and a load 3; the coupling device 2 includes a coupler 22, a coupling output terminal 23 and more than two The input terminal 21 of;

[0036] The filter 1 of one road is connected to one of the input terminals 21; more than two input terminals 21 are respectively connected to the coupler 22; the coupler 22 includes a first admittance converter 221 and a second admittance converter device 222;

[0037] The input end 21 is connected with one end of ...

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Abstract

The invention relates to the field of electromagnetism, in particular to a multiplex filter coupling system and method. The multiplex filter coupling system comprises two or more filters, a coupling device and a load. The coupling device comprises a coupler, a coupling output end and two or more input ends, the two or more input ends are connected with the coupler, the coupler comprises a first admittance convertor and a second admittance convertor, the input end is connected with one end of the first admittance convertor, the other end of the first admittance convertor is connected with one end of the second admittance convertor, and the other end of the second admittance convertor is connected with the coupling output end. The coupler composed of the first admittance convertor and the second admittance convertor is adopted, the attenuation band reactance value of each channel is increased and is large, all channels are independent and are not used as matching minor matters of the other channels, and the channels can be disassembled and additionally arranged at any time without affecting any other channel.

Description

technical field [0001] The invention relates to the field of electromagnetism, in particular to a coupling system of a multi-channel filter and a coupling method thereof. Background technique [0002] The current multi-channel coupler equipment, because the frequency must meet the collision rules (that is, there is a certain frequency interval between the passbands of the filter channels, to avoid channel interference caused by the passband frequencies of the channels being too close), the passband of each channel The frequencies must be separated by a certain distance. For example, when some special frequencies are used, there will be originally a multi-channel coupler with 8 channels. In the range, only 7 channels can be put down, so that one channel must be removed. [0003] In order to facilitate the design and expansion of multi-channel couplers, it is necessary to remove or add some channels for other systems at will. At this time, it is necessary to redesign the coup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12H01P5/16
CPCH01P5/12H01P5/16
Inventor 李雷刘开进曾万里王中锋赵浩翰
Owner FUJIAN XINGHAI COMM TECH