Ultra-wideband or multiband amplifier

An amplifier and amplifying tube technology, applied in the direction of improving the amplifier to expand the bandwidth, etc., can solve the problems of difficult to achieve dual-frequency matching, large topology area, difficult application, etc., and achieve the effect of easy implementation and simple circuit design method.

Inactive Publication Date: 2015-01-21
ZHEJIANG TEXTILE & FASHION COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, multi-frequency amplifier design technologies include composite left-handed technology, π-type matching network, coupled line technology, etc. These technologies are difficult to design or cannot design any multi-frequency matching network, so the application is relatively difficult
[0005] Its specific disadvantages are: 1) It is difficult to achieve dual-frequency matching of different impedances at any frequency; 2) It is difficult to achieve matching of different impedances of circuits above dual frequencies; 3) The circuit calculation is relatively complicated, making its application difficult
[0006] Ultra-broadband amplifiers with bandwidths up to GHz basically use multi-amplification parallel technology, which can achieve broadband, but the application of multiple amplifier tubes in parallel is costly and has a large topology area, which is not conducive to cost savings and product miniaturization.
Its specific disadvantages: 1) The production cost of multi-tube parallel connection is high; 2) The topological area is relatively large

Method used

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  • Ultra-wideband or multiband amplifier

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] An ultra-wideband or multi-frequency amplifier, comprising an input matching network 1, an amplifying tube 2 and an output matching network 3, the output end of the input matching network 1 is connected to the input end of the amplifying tube 2, and the output end of the amplifying tube 2 is connected to the output matching network 3's input connection;

[0018] The input matching network 1 comprises a first power divider 4, a first impedance converter bank 5 and a first filter bank 6, the first power divider 4 has an input port 7 and three output ports 41, and the first impedance converter Group 5 is made up of three first impedance converters 51, the number of first impedance converters 51 is equal to the number of output ports 8 of the first power splitter 4, and the first filter bank 6 is made up of three first filters 61 , th...

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Abstract

The invention discloses an ultra-wideband or multiband amplifier. The ultra-wideband or multiband amplifier comprises an input matching network, an amplifying tube and an output matching network, wherein the output end of the input matching network is connected with the input end of the amplifying tube; the output end of the amplifying tube is connected with the input end of the output matching network. The ultra-wideband or multiband amplifier has the characteristics that the impedance matching of the dual-band or multiband amplifiers can be realized, and is simple in circuit design method, easy to realize, capable of realizing ultra-wideband impedance matching of the single tube of the amplifier, relatively high in working efficiency, and relatively low in production cost.

Description

technical field [0001] The invention relates to an amplifier applied to an ultra-wideband (UWB) system and a multi-frequency wireless communication system, in particular to an amplifier capable of realizing ultra-wideband and multi-frequency impedance matching. Background technique [0002] UWB (ultra-wideband, UWB) radio signals usually use narrow pulses with extremely low power spectral density as the signal carrier, which quickly fades and disappears into the background noise in the space environment, and has good concealment and anti-interception capabilities. , is very suitable for military communication; at the same time, because it occupies a huge bandwidth, generally above 1GHz, it has a huge information capacity, good anti-multipath performance and extremely high time splitting characteristics. attention in the occasion. As the core device of the communication system, the amplifier generally has a bandwidth of tens of MHz, and the design method of the amplifier wit...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H03F1/42
Inventor陈罡张海力张羽
OwnerZHEJIANG TEXTILE & FASHION COLLEGE