Abstract
Abstract : Recent development in military and civilian applications requires switchable or tunable radar absorbers, which are very useful in electromagnetic compatibility test facilities, radar camouflage and deception roles, and tagging and asset tracking systems. There are a number of designs for tunable or switchable absorbers available in the literature. Almost all the designs use either liquid crystal materials or diodes to realize the tunability. Unfortunately, the operation bandwidth of most existing tunable absorbers is narrow and the achieved tunable frequency range is very small. Unlike existing tunable absorbers, we realize the tunable absorber through electronically changing its equivalent thickness of the absorber for different frequency bands. The operating principle is verified by theoretical analysis and experiment results. Both simulated and measured results show that this absorber can realize a wide bandwidth and its thickness is less than one-tenth free-space wavelength at the lowest frequency.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
