TY - JOUR
T1 - A Tunable K-Band Reflector
AU - Kohlberger, Christoph
AU - Kearns, Andrew
AU - Stelzer, Andreas
PY - 2022/1/1
Y1 - 2022/1/1
N2 - This letter presents a concept for a surface exhibiting tunable reflectivity that operates within the K-band using varactor diodes. Thereby, the impedance of a two-layer metasurface is controlled through lumped components at its back side and not at the front, where discrete elements would scatter the incident wave. A reflector's design, verification, and modelling through an equivalent circuit as well as full-wave simulations are presented in detail. Finally, the tunable reflection parameters of the surface as well as its reflection beam pattern under different biasing conditions are shown.
AB - This letter presents a concept for a surface exhibiting tunable reflectivity that operates within the K-band using varactor diodes. Thereby, the impedance of a two-layer metasurface is controlled through lumped components at its back side and not at the front, where discrete elements would scatter the incident wave. A reflector's design, verification, and modelling through an equivalent circuit as well as full-wave simulations are presented in detail. Finally, the tunable reflection parameters of the surface as well as its reflection beam pattern under different biasing conditions are shown.
KW - Varactors
KW - Reflection
KW - Frequency measurement
KW - Capacitance
KW - Resonant frequency
KW - Metals
KW - Inductance
UR - https://ieeexplore.ieee.org/document/9904827/
U2 - 10.1109/LAWP.2022.3210225
DO - 10.1109/LAWP.2022.3210225
M3 - Article
SN - 1548-5757
VL - PP
SP - 1
EP - 5
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 99
M1 - 9904827
ER -