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
É proposta uma nova antena para um telefone relógio de pulso. A antena proposta é um laço retangular de comprimento de onda único ao longo da tampa do telefone relógio de pulso. O laço é colocado na periferia da tampa que pode ser aberta, conectada à caixa do relógio de pulso por uma dobradiça. Para discutir o ganho da antena, definimos as duas condições diferentes como segue. Quando o usuário abre a tampa e fala pelo telefone com relógio de pulso, seu pulso é colocado na frente do rosto, o que é chamado de "posição de conversa" neste artigo. Quando o usuário fecha a tampa e aguarda uma ligação, seu pulso fica apoiado na lateral, o que é chamado de "posição stand-by". Medimos os padrões de radiação e calculamos o ganho médio do padrão (PAG) da antena proposta para as duas posições. Além disso, comparamos a antena proposta com as demais antenas: uma antena plana F invertida (PIFA) fixada na cinta e uma antena helicoidal de modo normal (NMHA) instalada no gabinete. Como resultado, o PAG da antena proposta foi de cerca de -5.5 dBd, que era o mesmo que o PAG das outras antenas para a posição de conversação. No caso da posição stand-by, o PAG da antena proposta foi de cerca de -3 dBd, que foi 7 dB maior que o das demais antenas. Os ganhos da antena proposta atingiram o objetivo, que era o PAG de uma antena chicote de um prático telefone segurado próximo à cabeça. Os resultados demonstram que a antena proposta é adequada para um telefone relógio de pulso.
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Yutaka SAITO, Isamu NAGANO, Hiroshi HARUKI, "A Novel Loop Antenna for a Wristwatch Phone" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 5, pp. 1423-1430, May 2001, doi: .
Abstract: A new antenna for a wristwatch phone is proposed. The proposed antenna is a one-wavelength rectangular loop along the cap of the wristwatch phone. The loop is fitted at the periphery of the openable cap connected to the wristwatch case by a hinge. In order to discuss the antenna gain, we define the two different conditions as follows. When the user opens the cap and talks over the wristwatch phone, his wrist is held in front of his face, which is called the "talk position" in this paper. When the user closes the cap and waits for a call, his wrist rests down at the side, which is called the "stand-by position. " We measured the radiation patterns and calculated the pattern averaging gain (PAG) of the proposed antenna for the two positions. In addition, we compared the proposed antenna with the other antennas: a planar inverted F antenna (PIFA) fixed on the strap and a normal mode helical antenna (NMHA) installed on the case. As a result, the PAG of the proposed antenna was about -5.5 dBd, which was the same as the PAG of the other antennas for the talk position. In the case of the stand-by position, the PAG of the proposed antenna was about -3 dBd, which was 7 dB higher than that of the other antennas. The gains of the proposed antenna reached the goal, which was the PAG of a whip antenna of a handy phone held near the head. The results demonstrate that the proposed antenna is suited to a wristwatch phone.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_5_1423/_p
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@ARTICLE{e84-b_5_1423,
author={Yutaka SAITO, Isamu NAGANO, Hiroshi HARUKI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Novel Loop Antenna for a Wristwatch Phone},
year={2001},
volume={E84-B},
number={5},
pages={1423-1430},
abstract={A new antenna for a wristwatch phone is proposed. The proposed antenna is a one-wavelength rectangular loop along the cap of the wristwatch phone. The loop is fitted at the periphery of the openable cap connected to the wristwatch case by a hinge. In order to discuss the antenna gain, we define the two different conditions as follows. When the user opens the cap and talks over the wristwatch phone, his wrist is held in front of his face, which is called the "talk position" in this paper. When the user closes the cap and waits for a call, his wrist rests down at the side, which is called the "stand-by position. " We measured the radiation patterns and calculated the pattern averaging gain (PAG) of the proposed antenna for the two positions. In addition, we compared the proposed antenna with the other antennas: a planar inverted F antenna (PIFA) fixed on the strap and a normal mode helical antenna (NMHA) installed on the case. As a result, the PAG of the proposed antenna was about -5.5 dBd, which was the same as the PAG of the other antennas for the talk position. In the case of the stand-by position, the PAG of the proposed antenna was about -3 dBd, which was 7 dB higher than that of the other antennas. The gains of the proposed antenna reached the goal, which was the PAG of a whip antenna of a handy phone held near the head. The results demonstrate that the proposed antenna is suited to a wristwatch phone.},
keywords={},
doi={},
ISSN={},
month={May},}
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TY - JOUR
TI - A Novel Loop Antenna for a Wristwatch Phone
T2 - IEICE TRANSACTIONS on Communications
SP - 1423
EP - 1430
AU - Yutaka SAITO
AU - Isamu NAGANO
AU - Hiroshi HARUKI
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2001
AB - A new antenna for a wristwatch phone is proposed. The proposed antenna is a one-wavelength rectangular loop along the cap of the wristwatch phone. The loop is fitted at the periphery of the openable cap connected to the wristwatch case by a hinge. In order to discuss the antenna gain, we define the two different conditions as follows. When the user opens the cap and talks over the wristwatch phone, his wrist is held in front of his face, which is called the "talk position" in this paper. When the user closes the cap and waits for a call, his wrist rests down at the side, which is called the "stand-by position. " We measured the radiation patterns and calculated the pattern averaging gain (PAG) of the proposed antenna for the two positions. In addition, we compared the proposed antenna with the other antennas: a planar inverted F antenna (PIFA) fixed on the strap and a normal mode helical antenna (NMHA) installed on the case. As a result, the PAG of the proposed antenna was about -5.5 dBd, which was the same as the PAG of the other antennas for the talk position. In the case of the stand-by position, the PAG of the proposed antenna was about -3 dBd, which was 7 dB higher than that of the other antennas. The gains of the proposed antenna reached the goal, which was the PAG of a whip antenna of a handy phone held near the head. The results demonstrate that the proposed antenna is suited to a wristwatch phone.
ER -