TY - GEN
T1 - A Concept of Pattern-Reconfigurable Single-Element Antenna Based on Half-Mode Substrate-Integrated Cavity
AU - Liu, Feng-Xue
AU - Dou, Wen-Bin
AU - Cui, Jie
AU - Chen, Shengjian Jammy
AU - Fumeaux, Christophe
PY - 2020/3
Y1 - 2020/3
N2 - A concept of pattern-reconfigurable singleelement antenna operating at 2.45 GHz is proposed in this paper. The antenna consists of two back-to-back half-mode substrate-integrated cavities with switchable shortings at both radiation apertures. One of the cavities is fed by an SMA probe while the other cavity is excited by the coupling through an aperture on the shared sidewall. This leads to the excitation of an even and an odd mode in the coupled cavities. Changing the states of the two switchable shortings leads to the switching between the even and odd coupled modes, which reconfigures the radiation pattern, and changes the main beam direction. The measured results on a fabricated prototype where the switches are mimicked by retractable screws validate the concept and illustrate that the main beam can be steered in the direction of either θ =12° or 36°.
AB - A concept of pattern-reconfigurable singleelement antenna operating at 2.45 GHz is proposed in this paper. The antenna consists of two back-to-back half-mode substrate-integrated cavities with switchable shortings at both radiation apertures. One of the cavities is fed by an SMA probe while the other cavity is excited by the coupling through an aperture on the shared sidewall. This leads to the excitation of an even and an odd mode in the coupled cavities. Changing the states of the two switchable shortings leads to the switching between the even and odd coupled modes, which reconfigures the radiation pattern, and changes the main beam direction. The measured results on a fabricated prototype where the switches are mimicked by retractable screws validate the concept and illustrate that the main beam can be steered in the direction of either θ =12° or 36°.
KW - coupled modes
KW - half-mode substrate-integrated cavity antenna
KW - pattern reconfiguration
KW - shorting pin
UR - http://www.scopus.com/inward/record.url?scp=85088660207&partnerID=8YFLogxK
U2 - 10.23919/eucap48036.2020.9135358
DO - 10.23919/eucap48036.2020.9135358
M3 - Conference contribution
T3 - 14th European Conference on Antennas and Propagation, EuCAP 2020
BT - 14th European Conference on Antennas and Propagation, EuCAP 2020
PB - Institute of Electrical and Electronics Engineers Inc.
ER -