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High temperature superconductive plane type group delay equalizer for radio communication

A high-temperature superconducting, planar technology, applied in waveguide devices, resonators, electrical components, etc., can solve the problems of low signal sensitivity, large loss, unfavorable system follow-up analysis, etc., achieve small size, small insertion loss, maintain The effect of sharpness

Inactive Publication Date: 2006-11-08
海泰超导通讯科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These group delay equalizers made of traditional materials have the disadvantage of high loss, so the signal sensitivity is low, which is not conducive to the subsequent analysis of the system

Method used

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  • High temperature superconductive plane type group delay equalizer for radio communication
  • High temperature superconductive plane type group delay equalizer for radio communication
  • High temperature superconductive plane type group delay equalizer for radio communication

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Embodiment 1: A high-temperature superconducting planar group delay equalizer for wireless communication (see Figure 4 ), which is characterized in that it is composed of a branch line coupler and two identical reflection filters, the number of zigzag resonators in the reflection filter is 4 and the length is half a wavelength. The input and output ends of the group delay equalizer are the input and output ends of the branch line coupler, and the tapped microstrips 11 and 12 are used. The third port 13 of the branch line coupler is connected to the input adjustment plate of the first reflection filter 50. 51 is connected to the first resonator 52 of the first reflection filter, and the fourth port 14 of the branch line coupler is connected to the input adjustment plate 61 of the second reflection filter 60 and the first one of the second reflection filter The resonator 62 is connected.

[0035] The above-mentioned branch line coupler, the length and shape of each port...

Embodiment 2

[0042] Embodiment 2: this example is to use the high temperature superconducting group delay equalizer that the high temperature superconducting 15MHz bandwidth filter of 3GTD-SCDMA base station uses Sonnet software simulation simulation to design; This high temperature superconducting filter is 14 poles (by 14 composed of resonators), the group delay frequency response of the simulated filter ( Image 6 ), and the group delay frequency response of the group delay equalizer ( Figure 5 ) to get the group delay frequency response at the output of the group delay equalizer ( Figure 7 ). The result shows that the HTS group delay equalizer of the present invention can reduce the group delay difference of the TD-SCDMA 15MHz bandwidth filter from 140 nanoseconds (ns) to less than 35 nanoseconds (ns).

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Abstract

This invention relates to a high temperature superconduction plane group time delay equalizer characterizing in including a high temperature superconduction microstrip line branch line coupler and two high temperature superconduction microstrip line reflection filters, in which, the coupler includes four ports, the first one is a signal input end and an output end connecting to the filter, the second is a signal output end, the third is connected with the first reflection filter and the fourth is connected with the second reflection filter, which can greatly reduce the group time delay difference when signals pass through the filters and reduce the loss of signals.

Description

(1) Technical field: [0001] The invention relates to a group time delay equalizer suitable for wireless communication, in particular to a high temperature superconducting planar group time delay equalizer for wireless communication. (two) background technology: [0002] At present, the use of wireless communication to transmit information has different frequency bands. For example, GSM and CDMA in the second generation of mobile communication, WCDMA in the third generation of mobile communication, TD-SCDMA, and CDMA-2000 all have their specific frequency bands. After these wireless signals pass through the filter of the system, the group delay of different frequency signals in a specific frequency band will change, which will cause the internal signal of the system to be blurred and lose accuracy. In general, the group delay in a specific frequency band will show a smooth concave upward trend; that is, the group delay slopes upward as it goes to the low frequency end, and sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/12H01P1/20H01P5/12H01P7/08
Inventor 陈国鋕徐凤换
Owner 海泰超导通讯科技(天津)有限公司
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