A5101534066- Advanced Antenna and Metasurface Technologies
- Plasmonic and Surface Plasmon Research
- Microwave Engineering and Waveguides
- Mechanical and Optical Resonators
- Carbon Nanotubes in Composites
- Graphene research and applications
- Electromagnetic Compatibility and Noise Suppression
- Metamaterials and Metasurfaces Applications
- Advanced MEMS and NEMS Technologies
- Antenna Design and Analysis
- Dielectric materials and actuators
- Acoustic Wave Resonator Technologies
- Wireless Body Area Networks
- Semiconductor materials and devices
- Synthesis and properties of polymers
- Photonic and Optical Devices
- Orbital Angular Momentum in Optics
- Bluetooth and Wireless Communication Technologies
- Semiconductor Lasers and Optical Devices
- Silicon Nanostructures and Photoluminescence
- Advanced Fiber Optic Sensors
- Nanowire Synthesis and Applications
- Molecular Junctions and Nanostructures
Case Western Reserve University
2018-2019
University of Electronic Science and Technology of China
2015-2018
Nanyang Technological University
2006-2009
A triple band‐notched UWB monopole antennas is presented for flexible electronics. To enhance the flexibility, ultra‐thin liquid crystal polymer with 50 μm thickness used as substrate. The are constituted by swallow tail radiation patch and trapezoid ground. Moreover, characteristic realised etching different sized elliptic single complementary split‐ring resonators on patch. An improved antenna notched‐frequency bands at 3.7–4.2 GHz, 5.15–5.35 5.725–5.825 GHz designed a novel capacitance...
The performance of an X-band flexible band-filter on ultra-thin liquid crystal polymer (LCP) substrate is investigated. 50 µm-thick LCP adopted to enhance the flexibility circuits. For purpose fabrication by conventional printed circuit board process, copper-clad laminate with 18 µm thickness selected. Excellent microwave transmission characterisation demonstrated measuring microstrip line at flat and bending conditions. An interdigital bandpass filter based a half-wavelength resonator...
In this article, we report on a comprehensive modeling study of frequency tuning graphene resonant nanoelectromechanical systems (NEMS) via electrostatic coupling forces induced by controlling the voltage capacitive gate. The model applies to both doubly clamped membranes and circumference-clamped circular drumhead device structures. Frequency these devices can be predicted considering softening elastic stiffening. It is shown that built-in strain in strongly dictates behavior range. We also...
In this paper, investigations about the applications of ultra thin Liquid Crystal Polymer (LCP) in flexible microwave filters are carried out. The LCP substrate 50μm thickness was offered as a double copper clad laminate with 18μm thickness. First, microstrip line fabricated and measured to show transmission characterization at flat bending condition. Then, for demonstration purpose, X band band-pass filter stepped impedance low pass were designed tested overall dimensions 5.4 × 3.2 mm <sup...
Polymer refractive microstructures are fabricated on metallic thin films and employed to modulate surface plasmons (SPs) propagations in a manner. SP waves converging with different focal lengths diverging effects realized by the structures. Authors investigated modulation effect as function of thicknesses shapes polymer micro-structures based effective index model, where imaging properties SPs observed experimentally detecting leaky radiation intensity SPs.
We report on the first experimental demonstration of a reconfigurable self-sustained MEMS oscillator that can generate either stable single oscillation frequency output or comb consisting set equally spaced lines. The is built upon integrating single-crystal (SC) silicon-on-insulator (SOI) comb-drive resonator with programmable sustaining amplifier enabled by an application-specific integrated circuit (ASIC) in CMOS. has displacement stopper; and its in-plane resonance mode (26.26 kHz) be...
In this report, we theoretically and experimentally demonstrates that multipole modes could be excited effectively in dark plasmonic resonators without introducing any other bright at microwave range based on a two-dimensional frequency selective surface (FSS) structure. These resonances are closely related to the coupling strength between adjacent S-LSPs (the periodicity of FSS). The splitting effects resonance frequencies regulated by changing numbers grooves inner disk radius, both which...
In this paper, a ultra wide-band microwave band pass filter suitable for planar and three-dimension integration is presented. Taking the advantage of mechanical flexibility, thin Liquid Crystal Polymer (LCP) with 50 μm thickness used as substrate. Firstly, to estimate bending effects devices based on LCP substrate, set Ohm microstrip lines fabricated tested. And performances mcirostrip at range radius from 1.5 mm 0.75 are demonstrated. The show little deterioration under radii 1.5mm 1mm, but...
This paper presents a compact small signal equivalent circuit model of graphene resonant channel transistors (G-RCTs) suitable for different bias conditions. The combines dependent GFET with continuum mechanics 2-D membrane. has been validated by resonators fabricated mechanical exfoliation techniques and transfer techniques. characterization G-RCT at very wide gate range Vgs from −20 to 20V is predicted the first time using model, which proves validation proposed model. With RCTs can be...
This paper presents a physical-based high-frequency nonlinear model of graphene resonant channel transistors (G-RCTs), including electromechanical doubled clamped mechanical resonators. To accurately describe the temperature-dependent modal dispersion, both bias- and effects are considered. The built-in strain, bias-based electrostatic force, spring restoring term upon deformation, used to motion suspended beam. is validated by measured results G-RCTs, which indicate that our can predict...
In this paper, a novel microwave band-pass frequency selective surface based on the concept of spoof localized plasmons (S-LSPs) resonators is demonstrated, whose center 11.35 GHz with two null points located at 8.8 and 11.75 GHz. The new organized by replacing conventional unit cells, using S-LSPs which support multipolar resonance modes. modes are controlled taking advantage symmetry electromagnetic band-gap property periodic structures; providing an interesting phenomenon: bands (located...