Abstract
A switchable absorber/absorptive frequency selective reflector (AFSR) is proposed in this paper. This structure is switchable by enabling an ideal PIN diode or not. When the PIN diode is enabled, the structure works as an absorber with an ultra-wide absorption band. And the structure works as an AFSR when the PIN diode is disenabled. Simulated results show that the achieved absorber has a wide absorption band $(\vert \mathrm{S}_{11}\vert \leq-10\text{dB})$ with a fractional bandwidth of 150.3%, which is from 1.92 GHz to 13.42 GHz. The realized AFSR has two absorption bands, and one reflection band $(\vert \mathrm{S}_{11} \geq-1\text{dB})$ . The lower absorption band is from 1.98 GHz to 4.86 GHz (84.2%) and the upper absorption band is from 8.37 GHz to 13.37 GHz (50%). The simulated reflection band is from 4.86 GHz to 8.37 GHz (46%). The relative thickness of the proposed structure is 0.128.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.