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
Antena baharu untuk telefon jam tangan dicadangkan. Antena yang dicadangkan ialah gelung segi empat tepat satu panjang gelombang di sepanjang penutup telefon jam tangan. Gelung dipasang di pinggir penutup boleh dibuka yang disambungkan ke bekas jam tangan dengan engsel. Untuk membincangkan keuntungan antena, kami mentakrifkan dua keadaan berbeza seperti berikut. Apabila pengguna membuka penutup dan bercakap melalui telefon jam tangan, pergelangan tangannya dipegang di hadapan mukanya, yang dipanggil "kedudukan bercakap" dalam kertas ini. Apabila pengguna menutup penutup dan menunggu panggilan, pergelangan tangannya diletakkan di sisi, yang dipanggil "kedudukan siap sedia." Kami mengukur corak sinaran dan mengira corak purata keuntungan (PAG) antena yang dicadangkan untuk kedua-dua jawatan itu. Di samping itu, kami membandingkan antena yang dicadangkan dengan antena lain: antena F terbalik planar (PIFA) yang dipasang pada tali dan antena heliks mod biasa (NMHA) yang dipasang pada kes itu. Akibatnya, PAG bagi antena yang dicadangkan adalah kira-kira -5.5 dBd, yang sama dengan PAG bagi antena lain untuk kedudukan bercakap. Dalam kes kedudukan siap sedia, PAG bagi antena yang dicadangkan adalah kira-kira -3 dBd, iaitu 7 dB lebih tinggi daripada antena lain. Keuntungan antena yang dicadangkan mencapai matlamat, iaitu PAG bagi antena cambuk telefon berguna yang dipegang berhampiran kepala. Keputusan menunjukkan bahawa antena yang dicadangkan sesuai dengan telefon jam tangan.
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Salinan
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
Salinan
@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},}
Salinan
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 -