A Tunable K-Band Reflector

Christoph Kohlberger; Andrew Kearns; Andreas Stelzer

doi:10.1109/LAWP.2022.3210225

A Tunable K-Band Reflector

Christoph Kohlberger, Andrew Kearns, Andreas Stelzer

Millimeter Wave Technologies (mmW)

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	9904827
Pages (from-to)	1-5
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	PP
Issue number	99
DOIs	https://doi.org/10.1109/LAWP.2022.3210225
Publication status	Published - 1 Jan 2022

Keywords

Varactors
Reflection
Frequency measurement
Capacitance
Resonant frequency
Metals
Inductance

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10.1109/LAWP.2022.3210225

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9904827

Cite this

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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

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JF - IEEE Antennas and Wireless Propagation Letters

IS - 99

M1 - 9904827

ER -

A Tunable K-Band Reflector

Abstract

Keywords

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