A planar circularly-polarized (CP) small antenna is proposed. To obtain a low profile configuration, a co-planar waveguide (CPW) structure is employed. Circular polarization is achieved using a curved stub that generates current distribution in a direction orthogonal to the current distribution from the patch. Using meander lines and a series gap capacitance, a 70% size reduction is achieved compared to a half-wavelength resonant antenna. To the best of the authors' knowledge, the proposed antenna is the smallest CP antenna using CPW technology. The measured 3 dB axial ratio bandwidth is 8.3% from 3.83 GHz to 4.16 GHz, and a 1.6 dBic gain and 89% efficiency are achieved.
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Jaehyurk CHOI, Sungjoon LIM, "Novel Co-planar Waveguide (CPW)-Fed Small Antenna with Circular Polarization" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 7, pp. 2141-2144, July 2011, doi: 10.1587/transcom.E94.B.2141.
Abstract: A planar circularly-polarized (CP) small antenna is proposed. To obtain a low profile configuration, a co-planar waveguide (CPW) structure is employed. Circular polarization is achieved using a curved stub that generates current distribution in a direction orthogonal to the current distribution from the patch. Using meander lines and a series gap capacitance, a 70% size reduction is achieved compared to a half-wavelength resonant antenna. To the best of the authors' knowledge, the proposed antenna is the smallest CP antenna using CPW technology. The measured 3 dB axial ratio bandwidth is 8.3% from 3.83 GHz to 4.16 GHz, and a 1.6 dBic gain and 89% efficiency are achieved.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.2141/_p
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@ARTICLE{e94-b_7_2141,
author={Jaehyurk CHOI, Sungjoon LIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Novel Co-planar Waveguide (CPW)-Fed Small Antenna with Circular Polarization},
year={2011},
volume={E94-B},
number={7},
pages={2141-2144},
abstract={A planar circularly-polarized (CP) small antenna is proposed. To obtain a low profile configuration, a co-planar waveguide (CPW) structure is employed. Circular polarization is achieved using a curved stub that generates current distribution in a direction orthogonal to the current distribution from the patch. Using meander lines and a series gap capacitance, a 70% size reduction is achieved compared to a half-wavelength resonant antenna. To the best of the authors' knowledge, the proposed antenna is the smallest CP antenna using CPW technology. The measured 3 dB axial ratio bandwidth is 8.3% from 3.83 GHz to 4.16 GHz, and a 1.6 dBic gain and 89% efficiency are achieved.},
keywords={},
doi={10.1587/transcom.E94.B.2141},
ISSN={1745-1345},
month={July},}
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TY - JOUR
TI - Novel Co-planar Waveguide (CPW)-Fed Small Antenna with Circular Polarization
T2 - IEICE TRANSACTIONS on Communications
SP - 2141
EP - 2144
AU - Jaehyurk CHOI
AU - Sungjoon LIM
PY - 2011
DO - 10.1587/transcom.E94.B.2141
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2011
AB - A planar circularly-polarized (CP) small antenna is proposed. To obtain a low profile configuration, a co-planar waveguide (CPW) structure is employed. Circular polarization is achieved using a curved stub that generates current distribution in a direction orthogonal to the current distribution from the patch. Using meander lines and a series gap capacitance, a 70% size reduction is achieved compared to a half-wavelength resonant antenna. To the best of the authors' knowledge, the proposed antenna is the smallest CP antenna using CPW technology. The measured 3 dB axial ratio bandwidth is 8.3% from 3.83 GHz to 4.16 GHz, and a 1.6 dBic gain and 89% efficiency are achieved.
ER -