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A Broadband Amplitude Equalization Compensation Device

A compensation device and amplitude equalization technology, applied in the direction of frequency selection two-terminal pair network, multi-terminal pair network, etc., can solve the problems of calibration time increase, measurement uncertainty, etc., achieve low cost, save measurement time, and ensure accuracy Effect

Active Publication Date: 2015-08-19
TRANSCOM INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] These two compensation methods require an external calibration source and calibration cable, and in the case of high measurement accuracy, it is necessary to connect the calibration source multiple times for calibration. If the frequency band is wide, the calibration time will be doubled; at the same time, because often need Connecting the calibration source and the test device through the connector also brings uncertainty in the measurement
However, if the test device needs to work outdoors, it is necessary to carry an additional calibration source, which also brings a lot of inconvenience

Method used

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  • A Broadband Amplitude Equalization Compensation Device
  • A Broadband Amplitude Equalization Compensation Device
  • A Broadband Amplitude Equalization Compensation Device

Examples

Experimental program
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Embodiment

[0026] Such as figure 1 As shown, a broadband amplitude equalization compensation device includes a signal input terminal 1, a phasing coupler 2, a detection module 3, a clock source 4, an A / D circuit 5, an FPGA6, a test module 7 and a constant temperature bath 8; The signal input terminal 1 is connected with the phasing coupler 2, and one end of the phasing coupler 2 is connected with the test module 7, and the other end is connected with the detection module 3, and the detection module 3, the A / D circuit 5, and the FPGA6 are sequentially Connect, described FPGA6 is connected with test module 7, and described clock source 4 is connected with A / D circuit 5; Described phasing coupler 2, detection module 3, clock source 4, A / D circuit 5, FPGA6 Put it into the constant temperature tank 8, keep the constant temperature state, and eliminate the measurement uncertainty caused by the external temperature change.

[0027] Phasing coupler 2: Coupling and outputting the measured signal...

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Abstract

The invention relates to a broadband amplitude isostatic-compensation device comprising a signal input end, a phasing coupler, a detection module, a clock source, an A / D (analog / digital) circuit, an FPGA (field programmable gate array) and a test module. The signal input end is connected with the phasing coupler, one end of the phasing coupler is connected with the test module, the other end of the phasing coupler is connected with the detection module, the detection module, the A / D circuit and the FPGA are sequentially connected, the FPGA is connected with the test module, and the clock source is connected with the A / D circuit. Compared with the prior art, the broadband amplitude isostatic-compensation device has the advantages of simplicity and feasibility in design, low cost, good stability and the like.

Description

technical field [0001] The invention relates to a broadband related technology, in particular to a broadband amplitude equalization compensation device. Background technique [0002] In the current general broadband test device, the amplitude measurement value of the signal under test will change with the change of the external environment or the increase of the use time, thereby affecting the accuracy of the amplitude measurement. Broadband test device amplitude compensation generally adopts the following two methods: [0003] 1. Connect the calibration cable, the calibration source and the test device, manually adjust the frequency step value, set the corresponding frequency point for the test device, and save the measured difference between the calibration source and the test device as compensation data; [0004] 2. Connect the calibration cable, the calibration source and the test device, and connect the network port or GPIB port of the calibration source to the network...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H11/06
Inventor 李成陈爽白皓
Owner TRANSCOM INSTR
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