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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Une antenne planaire F inversée à diversité de polarisation (PIFA) sur un téléphone portable lors d'une utilisation pratique à proximité du corps de l'opérateur est étudiée à 1,800 58 MHz dans un environnement urbain à trajets multiples. La structure de l'antenne comprend un patch carré alimenté au centre avec une broche courte permanente et deux commutateurs RF sur trois coins. Les commutateurs RF fonctionnent comme des commutateurs de dérivation de polarisation pour les modes de polarisation à dominante verticale (VP) ou à dominante horizontale (HP). L'efficacité de rayonnement de la diversité de polarisation PIFA est respectivement de 53 % et 52 % pour les modes VP et HP, ce qui est supérieur à l'efficacité de 4 % de l'antenne monopôle de référence λ/0.66 dans les mêmes conditions. Le gain effectif moyen (MEG) des modes VP et HP diminue en fonction du rapport de puissance de polarisation croisée (XPR) croissant. Le coefficient de corrélation de deux branches de diversité est compris entre 10 sur tous les XPR possibles allant de -10 dB à +10 dB. Le gain de diversité est calculé à partir du MEG et du coefficient de corrélation pour déterminer le gain d'antenne de diversité (DAG). Le gain de diversité, basé sur XNUMX-3 Le BER pour la combinaison sélective est de 7.5 dB en réception sans diversité. Le DAG est de -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},}
Copier
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 -