Abstract
This paper reviews some of our contributions to reconfigurable metamaterials, where dynamic control is enabled by microelectromechanical systems (MEMS) technology. First, we show reconfigurable composite right-/left-handed transmission lines (CRLH-TLs) having state of the art phase velocity variation and loss, thereby enabling efficient reconfigurable phase shifters and leaky-wave antennas (LWA). Second, we present very low loss metasurface designs with reconfigurable reflection properties, applicable in reflectarrays and partially reflective surface (PRS) antennas. All the presented devices have been fabricated and experimentally validated. They operate in X- and Ku-bands.
Highlights
Metamaterials [1,2,3,4,5] allow efficient manipulation of guided and free-space electromagnetic waves, thereby potentially improving existing and enabling novel microwave component and antenna designs [6,7,8,9,10,11]
This paper reviews some of our contributions to reconfigurable metamaterials, where dynamic control is enabled by microelectromechanical systems (MEMS) technology
The implementation of reconfigurable metamaterials [18, 19] for antenna applications has become a topic of intense practical relevance
Summary
Metamaterials [1,2,3,4,5] allow efficient manipulation of guided and free-space electromagnetic waves, thereby potentially improving existing and enabling novel microwave component and antenna designs [6,7,8,9,10,11]. Dynamic reconfiguration [12,13,14,15,16,17] has become a prime need in modern communication and sensing systems, for instance, to scan space and polarization, to dynamically compensate for varying system conditions thereby guaranteeing optimal performance in real time, or to support a higher number of functionalities through a single and compact device In this context, the implementation of reconfigurable metamaterials [18, 19] for antenna applications has become a topic of intense practical relevance.
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