3 citations · 3 across the 6 of their papers we have counts for
6 papers
An Experimental Validation of Reconfigurable Intelligent Surfaces Achieving Pulse Width-Modulated Singular Reflection Angles Without External Power Sources
Eisuke Omori, Kairi Takimoto, Atsuko Nagata +3
In this study, we introduce a design concept that leverages pulse width variation to enable a reconfigurable intelligent surface (RIS) and to autonomously switch reflection propert…
Multipath Signal-Selective Metasurface: Passive Time-Varying Interlocking Mechanism to Vary Spatial Impedance for Signals with the Same Frequency
Kaito Tachi, Kota Suzuki, Kairi Takimoto +4
Electromagnetic (EM) multipath interference is difficult to address with passive approaches due to two physical restrictions - the shared frequency of the initial and interfering s…
Passive Time-Varying Waveform-Selective Metasurfaces for Attainment of Magnetic Property Control
Yuki Kunitomo, Kairi Takimoto, Stefano Vellucci +5
We present circuit-loaded metasurfaces that behave differently in a passive manner even at the same frequency in accordance with the incoming waveform, specifically, its pulse widt…
Inkjet printed intelligent reflecting surface (IRS) for indoor applications
Kairi Takimoto, Kazutomo Nakamura, Peter Njogu +7
A passive, low-cost, paper-based intelligent reflecting surface (IRS) is designed to reflect a signal in a desired direction to overcome non-line-of-sight scenarios in indoor envir…
Design guidelines for the SPICE parameters of waveform-selective metasurfaces varying with the incident pulse width at a constant oscillation frequency
Shiori Imai, Haruki Homma, Kairi Takimoto +8
In this study, we numerically demonstrate how the response of recently reported circuit-based metasurfaces is characterized by their circuit parameters. These metasurfaces, which i…
Unsynchronized Reconfigurable Intelligent Surfaces with Pulse-Width-Based Design
Ashif Aminulloh Fathnan, Kairi Takimoto, Mizuki Tanikawa +3
In this correspondence, we present a reconfigurable intelligent surface (RIS) that reflects an incident signal to the desired direction, depending on the pulse width. This unique r…