This paper proposes a novel quad-band branched monopole antenna with a filter. The proposed antenna has a simple configuration in which branch-elements are added to a basic configuration consisting of a mast and dielectric wires. The antenna is characterized by performances such as wideband impedance matching, gain stabilization, and gain enhancement. Wideband impedance characteristics satisfying the voltage standing ratio of less than 2 are obtained by exciting a parallel resonance at the lowest band and multi-resonance at high bands. The filter suppressing higher order modes is used for gain stabilization, so that averaged gains above 5dBi are obtained at the quad-band. The antenna has a high gain of 11.1dBi because the branch-elements work as an end-fire array antenna at the highest band. Furthermore, it is clarified that an operating frequency is switched by using a variable bandpass filter at the lowest band. Last, a scale model of the antenna is fabricated and measured, then the effectiveness of the proposed antenna is demonstrated.
Shingo YAMAURA
Mitsubishi Electric Corporation
Kengo NISHIMOTO
Mitsubishi Electric Corporation
Yasuhiro NISHIOKA
Mitsubishi Electric Corporation
Ryosuke KOBAYASHI
Mitsubishi Electric Engineering Company Limited
Takahiro INO
Mitsubishi Electric Engineering Company Limited
Yoshio INASAWA
Mitsubishi Electric Corporation
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Shingo YAMAURA, Kengo NISHIMOTO, Yasuhiro NISHIOKA, Ryosuke KOBAYASHI, Takahiro INO, Yoshio INASAWA, "A Novel Quad-Band Branched Monopole Antenna with a Filter Suppressing Higher Order Modes" in IEICE TRANSACTIONS on Communications,
vol. E106-B, no. 10, pp. 938-948, October 2023, doi: 10.1587/transcom.2022EBP3192.
Abstract: This paper proposes a novel quad-band branched monopole antenna with a filter. The proposed antenna has a simple configuration in which branch-elements are added to a basic configuration consisting of a mast and dielectric wires. The antenna is characterized by performances such as wideband impedance matching, gain stabilization, and gain enhancement. Wideband impedance characteristics satisfying the voltage standing ratio of less than 2 are obtained by exciting a parallel resonance at the lowest band and multi-resonance at high bands. The filter suppressing higher order modes is used for gain stabilization, so that averaged gains above 5dBi are obtained at the quad-band. The antenna has a high gain of 11.1dBi because the branch-elements work as an end-fire array antenna at the highest band. Furthermore, it is clarified that an operating frequency is switched by using a variable bandpass filter at the lowest band. Last, a scale model of the antenna is fabricated and measured, then the effectiveness of the proposed antenna is demonstrated.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2022EBP3192/_p
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@ARTICLE{e106-b_10_938,
author={Shingo YAMAURA, Kengo NISHIMOTO, Yasuhiro NISHIOKA, Ryosuke KOBAYASHI, Takahiro INO, Yoshio INASAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Novel Quad-Band Branched Monopole Antenna with a Filter Suppressing Higher Order Modes},
year={2023},
volume={E106-B},
number={10},
pages={938-948},
abstract={This paper proposes a novel quad-band branched monopole antenna with a filter. The proposed antenna has a simple configuration in which branch-elements are added to a basic configuration consisting of a mast and dielectric wires. The antenna is characterized by performances such as wideband impedance matching, gain stabilization, and gain enhancement. Wideband impedance characteristics satisfying the voltage standing ratio of less than 2 are obtained by exciting a parallel resonance at the lowest band and multi-resonance at high bands. The filter suppressing higher order modes is used for gain stabilization, so that averaged gains above 5dBi are obtained at the quad-band. The antenna has a high gain of 11.1dBi because the branch-elements work as an end-fire array antenna at the highest band. Furthermore, it is clarified that an operating frequency is switched by using a variable bandpass filter at the lowest band. Last, a scale model of the antenna is fabricated and measured, then the effectiveness of the proposed antenna is demonstrated.},
keywords={},
doi={10.1587/transcom.2022EBP3192},
ISSN={1745-1345},
month={October},}
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TY - JOUR
TI - A Novel Quad-Band Branched Monopole Antenna with a Filter Suppressing Higher Order Modes
T2 - IEICE TRANSACTIONS on Communications
SP - 938
EP - 948
AU - Shingo YAMAURA
AU - Kengo NISHIMOTO
AU - Yasuhiro NISHIOKA
AU - Ryosuke KOBAYASHI
AU - Takahiro INO
AU - Yoshio INASAWA
PY - 2023
DO - 10.1587/transcom.2022EBP3192
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E106-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2023
AB - This paper proposes a novel quad-band branched monopole antenna with a filter. The proposed antenna has a simple configuration in which branch-elements are added to a basic configuration consisting of a mast and dielectric wires. The antenna is characterized by performances such as wideband impedance matching, gain stabilization, and gain enhancement. Wideband impedance characteristics satisfying the voltage standing ratio of less than 2 are obtained by exciting a parallel resonance at the lowest band and multi-resonance at high bands. The filter suppressing higher order modes is used for gain stabilization, so that averaged gains above 5dBi are obtained at the quad-band. The antenna has a high gain of 11.1dBi because the branch-elements work as an end-fire array antenna at the highest band. Furthermore, it is clarified that an operating frequency is switched by using a variable bandpass filter at the lowest band. Last, a scale model of the antenna is fabricated and measured, then the effectiveness of the proposed antenna is demonstrated.
ER -