In this paper a new electromagnetic (EM) interference analysis is proposed using the total harmonic distortion (THD) measurement of the audio signal by the 900 MHz cordless telephones. The cordless telephone network in 900 MHz was built up to be weak in EM interference. 400 and 800 Hz of the sine-wave signal were used in transmitter (TX) system, and the receiver (RX) system was exposed to the EM interference. The THD value varies as the level of the exposed EM interference changes. The model of the cordless telephone also affects the THD value. By using fluctuation of the THD value depending on the amount of the exposure, the threshold value of the interference electric field strength was derived. Based on the derived threshold value of the electric field strength, validity of the regulation value for low power radio devices by CISPR 22 [CLASS B] and FCC is discussed.
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Jeung geun PARK, Che young KIM, "Electromagnetic Interference Analysis Based on Total Harmonic Distortion Measurement in 900 MHz Cordless Telephones" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 9, pp. 2348-2353, September 2010, doi: 10.1587/transcom.E93.B.2348.
Abstract: In this paper a new electromagnetic (EM) interference analysis is proposed using the total harmonic distortion (THD) measurement of the audio signal by the 900 MHz cordless telephones. The cordless telephone network in 900 MHz was built up to be weak in EM interference. 400 and 800 Hz of the sine-wave signal were used in transmitter (TX) system, and the receiver (RX) system was exposed to the EM interference. The THD value varies as the level of the exposed EM interference changes. The model of the cordless telephone also affects the THD value. By using fluctuation of the THD value depending on the amount of the exposure, the threshold value of the interference electric field strength was derived. Based on the derived threshold value of the electric field strength, validity of the regulation value for low power radio devices by CISPR 22 [CLASS B] and FCC is discussed.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.2348/_p
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@ARTICLE{e93-b_9_2348,
author={Jeung geun PARK, Che young KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Electromagnetic Interference Analysis Based on Total Harmonic Distortion Measurement in 900 MHz Cordless Telephones},
year={2010},
volume={E93-B},
number={9},
pages={2348-2353},
abstract={In this paper a new electromagnetic (EM) interference analysis is proposed using the total harmonic distortion (THD) measurement of the audio signal by the 900 MHz cordless telephones. The cordless telephone network in 900 MHz was built up to be weak in EM interference. 400 and 800 Hz of the sine-wave signal were used in transmitter (TX) system, and the receiver (RX) system was exposed to the EM interference. The THD value varies as the level of the exposed EM interference changes. The model of the cordless telephone also affects the THD value. By using fluctuation of the THD value depending on the amount of the exposure, the threshold value of the interference electric field strength was derived. Based on the derived threshold value of the electric field strength, validity of the regulation value for low power radio devices by CISPR 22 [CLASS B] and FCC is discussed.},
keywords={},
doi={10.1587/transcom.E93.B.2348},
ISSN={1745-1345},
month={September},}
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TY - JOUR
TI - Electromagnetic Interference Analysis Based on Total Harmonic Distortion Measurement in 900 MHz Cordless Telephones
T2 - IEICE TRANSACTIONS on Communications
SP - 2348
EP - 2353
AU - Jeung geun PARK
AU - Che young KIM
PY - 2010
DO - 10.1587/transcom.E93.B.2348
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2010
AB - In this paper a new electromagnetic (EM) interference analysis is proposed using the total harmonic distortion (THD) measurement of the audio signal by the 900 MHz cordless telephones. The cordless telephone network in 900 MHz was built up to be weak in EM interference. 400 and 800 Hz of the sine-wave signal were used in transmitter (TX) system, and the receiver (RX) system was exposed to the EM interference. The THD value varies as the level of the exposed EM interference changes. The model of the cordless telephone also affects the THD value. By using fluctuation of the THD value depending on the amount of the exposure, the threshold value of the interference electric field strength was derived. Based on the derived threshold value of the electric field strength, validity of the regulation value for low power radio devices by CISPR 22 [CLASS B] and FCC is discussed.
ER -