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
Dalam kertas ini, kaedah analisis untuk mengira mod seimbang dan tidak seimbang bagi antena kecil diringkaskan. Kondatansi modal yang mengaitkan kuasa lesap antena diperoleh secara langsung daripada parameter S standard yang boleh kita ukur dengan penganalisis rangkaian 2-port. Kami menunjukkan kesahihan dan keberkesanan kaedah yang dicadangkan melalui simulasi dan pengukuran untuk antena dipol dengan suapan tidak seimbang. Nisbah kuasa mod tidak seimbang kepada jumlah kuasa (nisbah kuasa mod tidak seimbang) yang dikira oleh kaedah yang dicadangkan bersetuju dengan tepat dengan yang dihasilkan oleh kaedah konvensional menggunakan corak sinaran terukur. Tambahan pula, kami menganalisis antena gelung kecil dengan suapan tidak seimbang dengan kaedah yang dicadangkan dan menunjukkan bahawa ciri pengimbangan diri muncul apabila gelung ditetapkan dalam keadaan resonan dengan memuatkan kapasiti atau keseluruhan panjang gelung kurang daripada 1/20 panjang gelombang .
Takashi YANAGI
Mitsubishi Electric Corporation
Yasuhiro NISHIOKA
Mitsubishi Electric Corporation
Toru FUKASAWA
Mitsubishi Electric Corporation
Naofumi YONEDA
Mitsubishi Electric Corporation
Hiroaki MIYASHITA
Mitsubishi Electric Corporation
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Salinan
Takashi YANAGI, Yasuhiro NISHIOKA, Toru FUKASAWA, Naofumi YONEDA, Hiroaki MIYASHITA, "S-Parameter Analysis for Balanced and Unbalanced Modes Corresponding Dissipated Power of a Small Antenna" in IEICE TRANSACTIONS on Communications,
vol. E103-B, no. 7, pp. 780-786, July 2020, doi: 10.1587/transcom.2019EBP3112.
Abstract: In this paper, an analysis method for calculating balanced and unbalanced modes of a small antenna is summarized. Modal condactances which relate dissipated power of the antenna are directly obtained from standard S-parameters that we can measure by a 2-port network analyzer. We demonstrate the validity and effectiveness of the proposed method by simulation and measurement for a dipole antenna with unbalaned feed. The ratio of unbalanced-mode power to the total power (unbalanced-mode power ratio) calculated by the proposed method agrees precisely with that yielded by the conventional method using measured radiation patterns. Furthermore, we analyze a small loop antenna with unbalanced feed by the proposed method and show that the self-balancing characteristic appears when the loop is set in resonant state by loading capacitances or the whole length of the loop is less than 1/20th the wavelength.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019EBP3112/_p
Salinan
@ARTICLE{e103-b_7_780,
author={Takashi YANAGI, Yasuhiro NISHIOKA, Toru FUKASAWA, Naofumi YONEDA, Hiroaki MIYASHITA, },
journal={IEICE TRANSACTIONS on Communications},
title={S-Parameter Analysis for Balanced and Unbalanced Modes Corresponding Dissipated Power of a Small Antenna},
year={2020},
volume={E103-B},
number={7},
pages={780-786},
abstract={In this paper, an analysis method for calculating balanced and unbalanced modes of a small antenna is summarized. Modal condactances which relate dissipated power of the antenna are directly obtained from standard S-parameters that we can measure by a 2-port network analyzer. We demonstrate the validity and effectiveness of the proposed method by simulation and measurement for a dipole antenna with unbalaned feed. The ratio of unbalanced-mode power to the total power (unbalanced-mode power ratio) calculated by the proposed method agrees precisely with that yielded by the conventional method using measured radiation patterns. Furthermore, we analyze a small loop antenna with unbalanced feed by the proposed method and show that the self-balancing characteristic appears when the loop is set in resonant state by loading capacitances or the whole length of the loop is less than 1/20th the wavelength.},
keywords={},
doi={10.1587/transcom.2019EBP3112},
ISSN={1745-1345},
month={July},}
Salinan
TY - JOUR
TI - S-Parameter Analysis for Balanced and Unbalanced Modes Corresponding Dissipated Power of a Small Antenna
T2 - IEICE TRANSACTIONS on Communications
SP - 780
EP - 786
AU - Takashi YANAGI
AU - Yasuhiro NISHIOKA
AU - Toru FUKASAWA
AU - Naofumi YONEDA
AU - Hiroaki MIYASHITA
PY - 2020
DO - 10.1587/transcom.2019EBP3112
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E103-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2020
AB - In this paper, an analysis method for calculating balanced and unbalanced modes of a small antenna is summarized. Modal condactances which relate dissipated power of the antenna are directly obtained from standard S-parameters that we can measure by a 2-port network analyzer. We demonstrate the validity and effectiveness of the proposed method by simulation and measurement for a dipole antenna with unbalaned feed. The ratio of unbalanced-mode power to the total power (unbalanced-mode power ratio) calculated by the proposed method agrees precisely with that yielded by the conventional method using measured radiation patterns. Furthermore, we analyze a small loop antenna with unbalanced feed by the proposed method and show that the self-balancing characteristic appears when the loop is set in resonant state by loading capacitances or the whole length of the loop is less than 1/20th the wavelength.
ER -