Downsized Bow-Tie Antenna with Folded Elements

Mio NAGATOSHI; Shingo TANAKA; Satoru HORIUCHI; Hisashi MORISHITA

doi:10.1587/transele.E93.C.1098

Downsized Bow-Tie Antenna with Folded Elements

Mio NAGATOSHI, Shingo TANAKA, Satoru HORIUCHI, Hisashi MORISHITA

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It has been reported that by adding two folded elements, bow-tie antenna can be miniaturized, but the antenna has VSWR degradation problem. In this paper, the details of the VSWR degradation are investigated and the physical mechanism of the degradation is clarified. The best position for folded element is also shown. Moreover, the bow-tie antenna is bent in half in order to realize more size reduction. When the two folded elements are added to the half bent bow-tie antenna, the lowest operation frequency goes down and the proposed antenna can be more downsized than the previous proposed antenna. The gain is slightly lower than that of the previous model, however, the antenna area is reduced from 31%, which is the antenna area ratio of privious proposed antenna and conventional bow-tie antenna, to 19%. The bandwidth of 92% is obtained for VSWR≤2.

Publication: IEICE TRANSACTIONS on Electronics Vol.E93-C No.7 pp.1098-1104

Publication Date: 2010/07/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E93.C.1098

Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)

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Mio NAGATOSHI, Shingo TANAKA, Satoru HORIUCHI, Hisashi MORISHITA, "Downsized Bow-Tie Antenna with Folded Elements" in IEICE TRANSACTIONS on Electronics, vol. E93-C, no. 7, pp. 1098-1104, July 2010, doi: 10.1587/transele.E93.C.1098.
Abstract: It has been reported that by adding two folded elements, bow-tie antenna can be miniaturized, but the antenna has VSWR degradation problem. In this paper, the details of the VSWR degradation are investigated and the physical mechanism of the degradation is clarified. The best position for folded element is also shown. Moreover, the bow-tie antenna is bent in half in order to realize more size reduction. When the two folded elements are added to the half bent bow-tie antenna, the lowest operation frequency goes down and the proposed antenna can be more downsized than the previous proposed antenna. The gain is slightly lower than that of the previous model, however, the antenna area is reduced from 31%, which is the antenna area ratio of privious proposed antenna and conventional bow-tie antenna, to 19%. The bandwidth of 92% is obtained for VSWR≤2.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.1098/_p

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@ARTICLE{e93-c_7_1098,
author={Mio NAGATOSHI, Shingo TANAKA, Satoru HORIUCHI, Hisashi MORISHITA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Downsized Bow-Tie Antenna with Folded Elements},
year={2010},
volume={E93-C},
number={7},
pages={1098-1104},
abstract={It has been reported that by adding two folded elements, bow-tie antenna can be miniaturized, but the antenna has VSWR degradation problem. In this paper, the details of the VSWR degradation are investigated and the physical mechanism of the degradation is clarified. The best position for folded element is also shown. Moreover, the bow-tie antenna is bent in half in order to realize more size reduction. When the two folded elements are added to the half bent bow-tie antenna, the lowest operation frequency goes down and the proposed antenna can be more downsized than the previous proposed antenna. The gain is slightly lower than that of the previous model, however, the antenna area is reduced from 31%, which is the antenna area ratio of privious proposed antenna and conventional bow-tie antenna, to 19%. The bandwidth of 92% is obtained for VSWR≤2.},
keywords={},
doi={10.1587/transele.E93.C.1098},
ISSN={1745-1353},
month={July},}

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TY - JOUR
TI - Downsized Bow-Tie Antenna with Folded Elements
T2 - IEICE TRANSACTIONS on Electronics
SP - 1098
EP - 1104
AU - Mio NAGATOSHI
AU - Shingo TANAKA
AU - Satoru HORIUCHI
AU - Hisashi MORISHITA
PY - 2010
DO - 10.1587/transele.E93.C.1098
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2010
AB - It has been reported that by adding two folded elements, bow-tie antenna can be miniaturized, but the antenna has VSWR degradation problem. In this paper, the details of the VSWR degradation are investigated and the physical mechanism of the degradation is clarified. The best position for folded element is also shown. Moreover, the bow-tie antenna is bent in half in order to realize more size reduction. When the two folded elements are added to the half bent bow-tie antenna, the lowest operation frequency goes down and the proposed antenna can be more downsized than the previous proposed antenna. The gain is slightly lower than that of the previous model, however, the antenna area is reduced from 31%, which is the antenna area ratio of privious proposed antenna and conventional bow-tie antenna, to 19%. The bandwidth of 92% is obtained for VSWR≤2.
ER -