The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Uma antena planar F invertido de diversidade de polarização (PIFA) em telefone portátil no uso prático próximo ao corpo do operador é investigada em 1,800 MHz em ambiente urbano multipercurso. A estrutura da antena compreende um patch quadrado alimentado centralmente com um pino curto permanente e dois interruptores RF em três cantos. Os interruptores RF funcionam como interruptores de ramificação de polarização para modos de polarização dominantemente vertical (VP) ou polarização dominantemente horizontal (HP). A eficiência de radiação da diversidade de polarização PIFA é de 58% e 53% para os modos VP e HP, respectivamente, o que é superior à eficiência de 52% da antena monopolo de referência λ/4 sob a mesma condição. O ganho efetivo médio (MEG) dos modos VP e HP diminui em relação ao aumento da relação de potência de polarização cruzada (XPR). O coeficiente de correlação de dois ramos de diversidade está entre 0.66 em todos os XPR possíveis variando de -10 dB a +10 dB. O ganho de diversidade é calculado a partir do MEG e do coeficiente de correlação para determinar o ganho de diversidade da antena (DAG). O ganho de diversidade, com base em 10-3 BER para combinação seletiva é de 7.5 dB na recepção sem diversidade. O DAG é -1.2
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Komsak MEKSAMOOT, Monai KRAIRIKSH, Jun-ichi TAKADA, "A Polarization Diversity PIFA on Portable Telephone and the Human Body Effects on Its Performance" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 9, pp. 2460-2467, September 2001, doi: .
Abstract: A polarization diversity planar inverted-F antenna (PIFA) on portable telephone in the practical use near the operator's body is investigated at 1,800 MHz under multipath urban environment. The antenna structure comprises a center-fed square patch with one permanent short-pin and two RF-switches on three corners. The RF-switches perform as the polarization branch switches for dominantly vertical polarization (VP) or dominantly horizontal polarization (HP) modes. The radiation efficiency of the polarization diversity PIFA is 58% and 53% for VP and HP modes, respectively, which is higher than the 52% efficiency of the reference λ/4 monopole antenna under the same condition. The mean effective gain (MEG) of VP and HP modes decrease with respect to the increasing cross-polarization power ratio (XPR). The correlation coefficient of two diversity branches is between 0.66 through all the possible XPR ranging from -10 dB to +10 dB. The diversity gain is computed from the MEG and correlation coefficient to determine the diversity antenna gain (DAG). The diversity gain, based on 10-3 BER for selective combining, is 7.5 dB over non-diversity reception. The DAG is -1.2
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_9_2460/_p
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@ARTICLE{e84-b_9_2460,
author={Komsak MEKSAMOOT, Monai KRAIRIKSH, Jun-ichi TAKADA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Polarization Diversity PIFA on Portable Telephone and the Human Body Effects on Its Performance},
year={2001},
volume={E84-B},
number={9},
pages={2460-2467},
abstract={A polarization diversity planar inverted-F antenna (PIFA) on portable telephone in the practical use near the operator's body is investigated at 1,800 MHz under multipath urban environment. The antenna structure comprises a center-fed square patch with one permanent short-pin and two RF-switches on three corners. The RF-switches perform as the polarization branch switches for dominantly vertical polarization (VP) or dominantly horizontal polarization (HP) modes. The radiation efficiency of the polarization diversity PIFA is 58% and 53% for VP and HP modes, respectively, which is higher than the 52% efficiency of the reference λ/4 monopole antenna under the same condition. The mean effective gain (MEG) of VP and HP modes decrease with respect to the increasing cross-polarization power ratio (XPR). The correlation coefficient of two diversity branches is between 0.66 through all the possible XPR ranging from -10 dB to +10 dB. The diversity gain is computed from the MEG and correlation coefficient to determine the diversity antenna gain (DAG). The diversity gain, based on 10-3 BER for selective combining, is 7.5 dB over non-diversity reception. The DAG is -1.2
keywords={},
doi={},
ISSN={},
month={September},}
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TY - JOUR
TI - A Polarization Diversity PIFA on Portable Telephone and the Human Body Effects on Its Performance
T2 - IEICE TRANSACTIONS on Communications
SP - 2460
EP - 2467
AU - Komsak MEKSAMOOT
AU - Monai KRAIRIKSH
AU - Jun-ichi TAKADA
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2001
AB - A polarization diversity planar inverted-F antenna (PIFA) on portable telephone in the practical use near the operator's body is investigated at 1,800 MHz under multipath urban environment. The antenna structure comprises a center-fed square patch with one permanent short-pin and two RF-switches on three corners. The RF-switches perform as the polarization branch switches for dominantly vertical polarization (VP) or dominantly horizontal polarization (HP) modes. The radiation efficiency of the polarization diversity PIFA is 58% and 53% for VP and HP modes, respectively, which is higher than the 52% efficiency of the reference λ/4 monopole antenna under the same condition. The mean effective gain (MEG) of VP and HP modes decrease with respect to the increasing cross-polarization power ratio (XPR). The correlation coefficient of two diversity branches is between 0.66 through all the possible XPR ranging from -10 dB to +10 dB. The diversity gain is computed from the MEG and correlation coefficient to determine the diversity antenna gain (DAG). The diversity gain, based on 10-3 BER for selective combining, is 7.5 dB over non-diversity reception. The DAG is -1.2
ER -