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Portable electronic device electromagnetic interference aircraft coupling path loss test method

A portable electronic equipment, electromagnetic interference technology, applied in the direction of measuring resistance/reactance/impedance, measuring electricity, measuring devices, etc., can solve the problem of not giving test methods, test steps, calculation formulas, etc.

Inactive Publication Date: 2018-03-30
SHANGHAI RADIO EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the paper "Research on Electromagnetic Protection Design and Verification Technology for Portable Electronic Equipment of Commercial Airliners" published by Dai Jigang and Chen Zhili on Information Communication in 2013, from the mechanism of electromagnetic interference caused by PED, the control of PED radiation emission, the electromagnetic protection of newly developed aircraft PED The design requirements and airworthiness certification test are explained in several aspects, and the verification method of the aircraft front door coupling and rear door coupling test is mentioned, but the specific test method, test procedure, calculation formula, etc. are not given

Method used

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  • Portable electronic device electromagnetic interference aircraft coupling path loss test method
  • Portable electronic device electromagnetic interference aircraft coupling path loss test method
  • Portable electronic device electromagnetic interference aircraft coupling path loss test method

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Embodiment Construction

[0039] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, in order to realize the inventive method, the portable electronic equipment electromagnetic interference aircraft coupling path loss test system used in the present embodiment comprises the following components:

[0041] Frequency tracking source 1, used to provide radio frequency signals;

[0042] Amplifier 2 is used to amplify the power of the radio frequency signal provided by the frequency tracking source, and the amplified radio frequency signal is connected to the transmitting antenna 3;

[0043] The transmitting antenna 3 is arranged in the aircraft cabin, and is connected to the frequency tracking source 1 through the first test cable and the amplifier 2, so that the radio frequency signal from the frequency tracking source 1 and the amplifier 2 is emitted to simulate th...

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Abstract

The invention discloses a portable electronic device electromagnetic interference aircraft coupling path loss test method, which comprises the following steps: S1) determining electromagnetic interference paths of PEDs and simulating placement locations of a transmitting antenna in the test; S2) according to working frequency bands of airplane airborne equipment and antennas thereof, determining airplane interference path loss test frequency band; S3) establishing an airplane path loss test system; S4) carrying out calibration before path loss test to determine whether having extra losses besides the airplane antenna cable losses, and determining direct losses of a first test cable used in a transmitting channel, a second test cable used in a receiving channel and an airplane antenna cable; S5) carrying out aircraft coupling path loss test to obtain trajectory of the transmitting antenna at each position to be tested in an aircraft cabin and the power of a coupling interference signalreceived by a spectrum analyzer; and S6) carrying out airplane path loss calculation.

Description

technical field [0001] The invention relates to a method for testing electromagnetic interference aircraft coupling path loss of portable electronic equipment. Background technique [0002] Wireless handsets are ubiquitous in today's society and have become a necessity as their expanded network coverage, reliability, capacity and ability to provide services grow. Most airlines now prohibit the use of mobile phones during flight. However, with the gradual increase of passengers' demand for portable electronic devices (PED) such as mobile phones, laptops, and handheld computers, accidental unintentional or unauthorized use Deliberate use is possible. Relatively expensive seat-back satellite phones, airlines and communications providers alike are increasingly turning to nano-cell technology, and are increasingly interested in providing cell phone service on planes. Flight examples in recent years have shown that it is technically feasible to use mobile phones on aircraft, tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R27/26
Inventor 武亚君陈奇平
Owner SHANGHAI RADIO EQUIP RES INST
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