Polarization insensitivity characterization of dual-band perfect metamaterial absorber for K band sensing applications. [PDF]
Sci Rep, 2021 Polarization insensitive metamaterial absorbers (MA) are currently very attractive due to their unique absorption properties at different polarization angles.
Hakim ML +4 more
europepmc +2 more sources
A high gain multiband offset MIMO antenna based on a planar log-periodic array for Ku/K-band applications. [PDF]
Sci Rep, 2022 An offset quad-element, two-port, high-gain, and multiband multiple-input multiple-output (MIMO) planar antenna based on a log-periodic dipole array (LPDA) for Ku/K-band wireless communications is proposed, in this paper.
Fakharian MM +3 more
europepmc +2 more sources
Triangular Sierpinski Microwave Band-Stop Resonators for K-Band Filtering [PDF]
Sensors, 2023 Triangular resonators re-shaped with Sierpinski geometry were designed, manufactured, and tested for potential applications in the K-Band. Prototypes of band-stop filters working around 20 GHz and 26 GHz, interesting for RADAR and satellite ...
Romolo Marcelli +6 more
doaj +2 more sources
Radar micro-Doppler signatures of drones and birds at K-band and W-band. [PDF]
Sci Rep, 2018 Due to the substantial increase in the number of affordable drones in the consumer market and their regrettable misuse, there is a need for efficient technology to detect drones in airspace.
Rahman S, Robertson DA.
europepmc +2 more sources
Hybrid‐fed shared aperture antenna array for X/K‐band airborne synthetic aperture radar applications
IET Microwaves, Antennas & Propagation, 2021 The design of X/K‐band shared aperture antenna (SAA) single‐linear polarized K‐band, dual‐polarized (linear/circular) X‐band 36‐elements (6×6) planar array antenna with high gain, and low cost for airborne synthetic aperture radar systems is presented ...
Venkata Kishore Kothapudi, Vijay Kumar
doaj +2 more sources
MEMS-Switched Triangular and U-Shaped Band-Stop Resonators for K-Band Operation [PDF]
Sensors, 2023 Triangular resonators re-shaped into Sierpinski geometry and U-shaped resonators were designed, linking them with single-pole-double-through (SPDT) RF MEMS switches to provide frequency tuning for potential applications in the K-Band.
Romolo Marcelli +6 more
doaj +2 more sources
Ultrabroadband Design for Linear Polarization Conversion and Asymmetric Transmission Crossing X- and K- Band. [PDF]
Sci Rep, 2016 In this work, a high-efficiency and broadband reflective converter using ultrathin planar metamaterial (MM) composed of single-layered SRR is firstly realized.
Zhang L +8 more
europepmc +2 more sources
Spin polarized first principles study of electro-magnetic and optical properties of K2NaXI6 (X :Cr Fe) double halide perovskites [PDF]
Scientific ReportsSpin-polarized first-principles calculations were performed to investigate the physical properties of K₂NaXI₆ (X = Cr, Fe) halide double perovskites. Accurate electronic band gaps were obtained using the TB-mBJ exchange potential.
Danish Abdullah +4 more
doaj +2 more sources
IEEE Photonics Journal, 2021 In this paper, a rectifier integrated Luneburg lens is designed at K band for wireless power transfer (WPT) applications. The lens consists of two metallic layers with a gap of 0.3 mm between them and has been made by employing the glide symmetry ...
Sarath Sankar Vinnakota +3 more
doaj +1 more source
Design and Realization of Band Pass Filter in K-Band Frequency for Short Range Radar Application
Jurnal Elektronika dan Telekomunikasi, 2021 Short range radar (SRR) uses the K-band frequency range in its application. The radar requires high-resolution, so the applied frequency is 1 GHz wide.
Arie Setiawan +10 more
doaj +1 more source