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Method for detecting loss of transmission paths

A technology of transmission path and detection method, which is applied in the direction of transmission system, transmission monitoring, measurement device, etc., can solve the problems of test result error, detection structure cannot provide transmission path loss, etc., and achieve the effect of accurate test

Active Publication Date: 2013-06-12
UNIVERSAL SCIENTIFIC INDUSTRIAL (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional detection architecture cannot provide accurate transmission path loss to the test system 1, which will cause errors in test results

Method used

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  • Method for detecting loss of transmission paths
  • Method for detecting loss of transmission paths
  • Method for detecting loss of transmission paths

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Embodiment Construction

[0052] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0053] The detection method of the transmission path loss of the present invention is suitable for detecting the loss of multiple transmission paths, and then providing the detected loss of the transmission path to a test system, so that the test system will accurately test a plurality of transmission path losses according to the transmission path loss. Receive / transmit power of the port wireless radio device.

[0054] In the detection method of the transmission path loss of the present invention, a calibration plate needs to be set first. image 3 Shown is a schematic diagram of the structure of the calibration plate in a preferred embodiment of the present invention. image 3 In , the calibration board for detecting three transmission paths is taken as an example, therefore, the follo...

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Abstract

The invention discloses a method for detecting loss of transmission paths, which is suitable for a plurality of transmission paths. The method comprises the following steps of: firstly, configuring a correcting plate, wherein the correcting plate is provided with a plurality of selective switches, and the selective switches are correspondingly coupled to the plurality of transmission paths; then sequentially controlling the selective switches so that the transmission paths are sequentially connected in pairs; sequentially measuring the loss of the transmission paths which are connected in pairs to obtain the loss of a plurality of total paths; and finally, calculating the loss of the total paths to respectively obtain the loss of each transmission path. The invention enables a test system to accurately test the receiving / transmitting power of a multiport radio frequency device.

Description

technical field [0001] The invention relates to a detection method of transmission path loss, in particular to a detection method which can be used to correct the transmission path loss of a multi-port wireless radio frequency device testing system. Background technique [0002] Nowadays, multi-port wireless radio frequency devices (MIMO devices) are more and more widely used, such as 802.11n wireless network cards or wireless modules. If the multi-port radio frequency device has more than three radio frequency input / output ports, the calibration of the transmission path of the test system will be more complicated. [0003] figure 1 Shown is a schematic diagram of a conventional multi-port wireless RF device test system with three RF input / output ports. In the test system 1, the multi-port radio frequency device 10 meets the requirement of miniaturization, and the three radio frequency input / output ports a', b', c' on it all use non-standard transmission connectors (non-st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00G01R21/01H04B17/309
Inventor 李冠兴高合助
Owner UNIVERSAL SCIENTIFIC INDUSTRIAL (SHANGHAI) CO LTD