TY - JOUR
T1 - Wideband Circularly Polarized 3-D Printed Dielectric Rod Antenna
AU - Huang, Jin
AU - Chen, Shengjian Jammy
AU - Xue, Zhenghui
AU - Withayachumnankul, Withawat
AU - Fumeaux, Christophe
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2020/2
Y1 - 2020/2
N2 - This article presents a 3-D-printed dielectric rod antenna with wideband circular polarization. The proposed dielectric device comprises two main components: a launching part and a radiating part. The launching part consists of three cylindrical sections with stepped permittivity for wideband impedance matching to the rectangular waveguide feed. The radiating part is a tapered dielectric rod with two helical grooves that generate circular polarization. The experimental results verify that the proposed antenna exhibits a wide impedance bandwidth of 60.3% from 4.05 to 7.55 GHz, a wide 3 dB axial ratio bandwidth of 57.0% from 4.20 to 7.55 GHz, a high realized gain varying within 8.3 and 11.5 dBiC over the whole band, and the desired stable endfire radiation patterns. The 3-D printing technology provides a viable approach to realization of the proposed complicated geometry in a single piece with high accuracy and great flexibility.
AB - This article presents a 3-D-printed dielectric rod antenna with wideband circular polarization. The proposed dielectric device comprises two main components: a launching part and a radiating part. The launching part consists of three cylindrical sections with stepped permittivity for wideband impedance matching to the rectangular waveguide feed. The radiating part is a tapered dielectric rod with two helical grooves that generate circular polarization. The experimental results verify that the proposed antenna exhibits a wide impedance bandwidth of 60.3% from 4.05 to 7.55 GHz, a wide 3 dB axial ratio bandwidth of 57.0% from 4.20 to 7.55 GHz, a high realized gain varying within 8.3 and 11.5 dBiC over the whole band, and the desired stable endfire radiation patterns. The 3-D printing technology provides a viable approach to realization of the proposed complicated geometry in a single piece with high accuracy and great flexibility.
KW - 3-D printing
KW - circular polarization (CP)
KW - dielectric rod antenna
KW - wideband
UR - http://www.scopus.com/inward/record.url?scp=85079277437&partnerID=8YFLogxK
U2 - 10.1109/TAP.2019.2943325
DO - 10.1109/TAP.2019.2943325
M3 - Article
AN - SCOPUS:85079277437
SN - 0018-926X
VL - 68
SP - 745
EP - 753
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 2
M1 - 8852817
ER -
