The simulation and experiment results show that the electromagnetic shielding effectiveness is better than 23 dB in the 10–18 GHz band while its maximum normalised high-order diffraction optical energy is decreased to 0.
Experimental verification of the dual-polarization modulator-based linearized fiber-optic link shows that a high SFDR of more than 124 dB⋅Hz4/5 is obtained at different input RF signal frequencies over a 2-18 GHz bandwidth.
The primary features of the coupler include operating frequency from 2 GHz to 18 GHz to cover S, C, X, Ka and Ku bands; coupling coefficient below −18 dB; return loss of −20 dB for all the ports; minimum directivity of 25 dB; small size and low losses, which make it appropriate for applications, where the available space is limited.
The electromagnetic interference (EMI) shielding effectiveness (SE) of Ultra-High Performance Concrete (UHPC) mixed with carbon nanotubes (CNTs) (UHPC/CNT composites) having a thickness of 200 mm in the frequency range of 10 kHz to 18 GHz was investigated according to IEEE-STD-299 for the first time.
This work presents ultra wideband dielectric properties of three renal calculi types between 500 MHz to 18 GHz to pave the way for possible application of microwave technologies for diagnosis, treatment, and prevention of urolithiasis.
We have employed spectroscopic techniques over a very broad range spanning from microwave (2-18 GHz), through infrared (2600-4000 cm-1) and ultraviolet (350-250 nm) region, studying therotational, vibrational and electronic properties,respectively.
We present the first direct imaging of what may be the thick torus in the active galactic nucleus (AGN) of the archetype powerful radio galaxy Cygnus A, using the Jansky Very Large Array (VLA) at 18 GHz to 48 GHz, with a resolution down to 45 mas.
The Microsized Microwave Atmospheric Satellite Version 2a (MicroMAS-2a), launched on January 11, 2018 and has successfully demonstrated temperature sounding using channels near 118 GHz and humidity sounding using channels near 183 GHz.
The receiver is suitable for deployment on ALMA in the coming years and it is capable of dual-polarisation, sideband-separating observations in intermediate frequency bands spanning 4-18 GHz for a total of 28 GHz on-sky bandwidth per polarisation channel.
In this paper, wideband dielectric characterization of triethylene glycol dimethacrylate ester (TrEGDMA) organic plastic material is presented using the transmission line technique with a coaxial airline in the frequency range of 1–18 GHz.
An electrically controlled tunable interference based microwave sensor is demonstrated to perform time domain detection of single particles and measure complex permittivity of cell culture mediums within the broadband range of 12–18 GHz.
We present a catalog of 510 radio-loud active galactic nuclei (AGN, primarily blazars) and 287 dusty star-forming galaxies (DSFGs) detected by the Atacama Cosmology Telescope at $> 5 \sigma$ significance in frequency bands centered on 148 GHz (2 mm), 218 GHz (1.
The temperature profile can be obtained with a precision of < 2 K for a single scan from 10 to 60 km by using the 118 GHz radiometer, and the 240 and 643 GHz radiometers can provide temperature information in the upper troposphere.
In this paper, we solve these issues via combining the Huygens metasurface and three-layers slab impedance metasurface, with the former satisfying the novel impedance matching theory and the latter exhibiting multi-resonant property and optimized conductivities, which achieve high-efficiency absorption at lower frequency range (1–3 GHz) and higher frequency region (3–18 GHz), respectively.