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 compacta de aparelho embutida para sistema de múltiplas entradas e saídas múltiplas (MIMO) a 2 GHz, compreendendo um conjunto de dois elementos da recém-proposta antena monopolo dobrada em forma de L (LFMA), é avaliada nos ambientes de propagação de ondas de rádio multipercurso. Ao analisar as características fundamentais, ganho médio efetivo (MEG), correlação e capacidade do canal, foi confirmado o aumento significativo na capacidade, como antena MIMO de aparelho em condições práticas de uso. Os desempenhos também foram comparados aos de um conjunto de antenas composto por dois elementos de antena planar F invertido (PIFA), a fim de verificar a eficácia da antena proposta. Os resultados mostram que desempenhos equivalentes ou melhorados podem ser obtidos, usando o arranjo LFMA proposto com tamanho compacto, ocupando apenas o volume de 44% de um arranjo PIFA. A matriz LFMA fornece quase a mesma largura de banda e isolamento aprimorado em comparação com uma matriz PIFA, e a correlação suficientemente baixa e o ganho efetivo aceitável são obtidos nos ambientes de propagação de ondas de rádio multipercurso. Além disso, uma capacidade de canal maior do que uma matriz PIFA é alcançada especialmente quando a matriz LFMA proposta é inclinada para o modo de visualização de exibição e, além disso, um aumento quase duplicado na capacidade do canal é obtido usando a transmissão MIMO em comparação com a transmissão de entrada única. saída única (SISO). Este estudo também mostra que o MEG tem muitos efeitos na capacidade do canal, e não nas correlações, para a antena proposta.
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Yongho KIM, Toshiteru HAYASHI, Yoshio KOYANAGI, Hisashi MORISHITA, "Compact Built-In Handset MIMO Antenna Using L-Shaped Folded Monopole Antennas" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 6, pp. 1743-1751, June 2008, doi: 10.1093/ietcom/e91-b.6.1743.
Abstract: A compact built-in handset antenna for multiple-input multiple-output (MIMO) system at 2 GHz, comprising two elements array of newly proposed L-shaped folded monopole antenna (LFMA), is evaluated under the multipath radio wave propagation environments. By analyzing the fundamental characteristics, mean effective gain (MEG), correlation, and channel capacity, the significant enhancement in the capability, as a handset MIMO antenna under practical use conditions, was confirmed. The performances were also compared to those of an array antenna comprising two planar inversed-F antenna (PIFA) elements in order to verify the effectiveness of the proposed antenna. The results show that the equivalent or improved performances can be realized, by using the proposed LFMA array with a compact size, taking only the volume of 44% of a PIFA array. The LFMA array provides almost the same bandwidth and enhanced isolation compared with a PIFA array, and the sufficiently low correlation and acceptable effective gain are obtained under the multipath radio wave propagation environments. In addition, a greater channel capacity than a PIFA array is achieved especially when the proposed LFMA array is inclined for the display-viewing mode, and moreover, an almost doubled increase in the channel capacity is obtained by using MIMO transmission compared with single-input single-output (SISO). This study also show that the MEG has much effects on the channel capacity, rather than the correlations, for the proposed antenna.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.6.1743/_p
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@ARTICLE{e91-b_6_1743,
author={Yongho KIM, Toshiteru HAYASHI, Yoshio KOYANAGI, Hisashi MORISHITA, },
journal={IEICE TRANSACTIONS on Communications},
title={Compact Built-In Handset MIMO Antenna Using L-Shaped Folded Monopole Antennas},
year={2008},
volume={E91-B},
number={6},
pages={1743-1751},
abstract={A compact built-in handset antenna for multiple-input multiple-output (MIMO) system at 2 GHz, comprising two elements array of newly proposed L-shaped folded monopole antenna (LFMA), is evaluated under the multipath radio wave propagation environments. By analyzing the fundamental characteristics, mean effective gain (MEG), correlation, and channel capacity, the significant enhancement in the capability, as a handset MIMO antenna under practical use conditions, was confirmed. The performances were also compared to those of an array antenna comprising two planar inversed-F antenna (PIFA) elements in order to verify the effectiveness of the proposed antenna. The results show that the equivalent or improved performances can be realized, by using the proposed LFMA array with a compact size, taking only the volume of 44% of a PIFA array. The LFMA array provides almost the same bandwidth and enhanced isolation compared with a PIFA array, and the sufficiently low correlation and acceptable effective gain are obtained under the multipath radio wave propagation environments. In addition, a greater channel capacity than a PIFA array is achieved especially when the proposed LFMA array is inclined for the display-viewing mode, and moreover, an almost doubled increase in the channel capacity is obtained by using MIMO transmission compared with single-input single-output (SISO). This study also show that the MEG has much effects on the channel capacity, rather than the correlations, for the proposed antenna.},
keywords={},
doi={10.1093/ietcom/e91-b.6.1743},
ISSN={1745-1345},
month={June},}
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TY - JOUR
TI - Compact Built-In Handset MIMO Antenna Using L-Shaped Folded Monopole Antennas
T2 - IEICE TRANSACTIONS on Communications
SP - 1743
EP - 1751
AU - Yongho KIM
AU - Toshiteru HAYASHI
AU - Yoshio KOYANAGI
AU - Hisashi MORISHITA
PY - 2008
DO - 10.1093/ietcom/e91-b.6.1743
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2008
AB - A compact built-in handset antenna for multiple-input multiple-output (MIMO) system at 2 GHz, comprising two elements array of newly proposed L-shaped folded monopole antenna (LFMA), is evaluated under the multipath radio wave propagation environments. By analyzing the fundamental characteristics, mean effective gain (MEG), correlation, and channel capacity, the significant enhancement in the capability, as a handset MIMO antenna under practical use conditions, was confirmed. The performances were also compared to those of an array antenna comprising two planar inversed-F antenna (PIFA) elements in order to verify the effectiveness of the proposed antenna. The results show that the equivalent or improved performances can be realized, by using the proposed LFMA array with a compact size, taking only the volume of 44% of a PIFA array. The LFMA array provides almost the same bandwidth and enhanced isolation compared with a PIFA array, and the sufficiently low correlation and acceptable effective gain are obtained under the multipath radio wave propagation environments. In addition, a greater channel capacity than a PIFA array is achieved especially when the proposed LFMA array is inclined for the display-viewing mode, and moreover, an almost doubled increase in the channel capacity is obtained by using MIMO transmission compared with single-input single-output (SISO). This study also show that the MEG has much effects on the channel capacity, rather than the correlations, for the proposed antenna.
ER -