Quanyuan Feng
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View article: Hybrid Femtosecond Laser Fabrication of Surface Y-Branch Waveguides in LiTaO<sub>3</sub> via Etching and Refractive Index Engineering
Hybrid Femtosecond Laser Fabrication of Surface Y-Branch Waveguides in LiTaO<sub>3</sub> via Etching and Refractive Index Engineering Open
In this study, we present the development of a Y-branch superficial waveguide splitter that was fabricated using a combination of femtosecond laser writing and ablating techniques in a z-cut lithium tantalate (LiTaO3) wafer. By strategical…
View article: Quarter-Wave Plate Meta-Atom Metasurfaces for Continuous Longitudinal Polarization Modulation of Hybrid Poincaré Sphere Beams
Quarter-Wave Plate Meta-Atom Metasurfaces for Continuous Longitudinal Polarization Modulation of Hybrid Poincaré Sphere Beams Open
Quarter-wave plate (QWP) metasurfaces provide a novel approach for generating three-dimensional (3D) hybrid-order Poincaré sphere (HyOPS) beams and enabling longitudinal polarization modulation, owing to their unique spin-decoupling proper…
View article: Effects of low-level laser therapy (LLLT) on skeletal muscle fatigue and damage
Effects of low-level laser therapy (LLLT) on skeletal muscle fatigue and damage Open
The present study aimed to evaluate the effects of low-level laser therapy (LLLT) on exercise performance and skeletal muscle damage. A randomized, double-blind, placebo-controlled study involved 24 male college swimming athletes. LLLT was…
View article: Analysis of passive intermodulation in cascaded connectors with transmit‐receive systems
Analysis of passive intermodulation in cascaded connectors with transmit‐receive systems Open
Passive intermodulation (PIM) is usually expressed by the third‐order intermodulation power excited by two‐tone signal, which has limitations in characterising nonlinear distortion of signal in actual communication system. The effect of PI…
View article: Design of a Novel Circularly Polarized MIMO Antenna with Enhanced Isolation for Ultra-wideband Communication
Design of a Novel Circularly Polarized MIMO Antenna with Enhanced Isolation for Ultra-wideband Communication Open
In this paper, we propose a circularly polarized (CP) ultra-wideband (UWB) MIMO antenna. Compared with common linearly polarized (LP) UWB antenna, the proposed antenna can excite circular polarization (CP) mode for WLAN communication and i…
View article: Design Validation of UWB MIMO Antenna with Enhanced Isolation and Novel Strips for Stop-Band Characteristics
Design Validation of UWB MIMO Antenna with Enhanced Isolation and Novel Strips for Stop-Band Characteristics Open
This article introduces a novel Ultra Wide Band (UWB) Multiple Input Multiple Output (MIMO) antenna with Triple-band notched characteristics. The overall dimensions of the antenna are 18 × 34 mm2. The designed antenna has two similar flowe…
View article: A Compact Dual-band Planar Antenna Loaded with Magneto Dielectric Ferrite
A Compact Dual-band Planar Antenna Loaded with Magneto Dielectric Ferrite Open
In this paper, a compact dual-band planar antenna loaded with magnetodielectric ferrite is proposed for ISM/GSM/UMTS. Slot and ring structures are dual-resonant mode generators of the antenna. And the characteristic mode analysis is used f…
View article: Effect of second harmonic and second‐order intermodulation on third‐order passive intermodulation
Effect of second harmonic and second‐order intermodulation on third‐order passive intermodulation Open
Third‐order intermodulation (IM3) is considered as a typical metric to evaluate passive intermodulation (PIM) in electrical connectors, which may be affected by the second‐order effect in the circuit with cascaded non‐linearities. In this …
View article: Novel Broadband Circularly Polarized Monopole Antenna for Multi-communication Systems
Novel Broadband Circularly Polarized Monopole Antenna for Multi-communication Systems Open
This paper proposes a novel coplanar waveguide (CPW) fed broadband circularly polarized (CP) monopole antenna, which applies to C-band and various wireless communication systems. The antenna consists of the double circular-shaped patch (DC…
View article: Broadband CPW-Fed Circularly Polarized Square Slot Antenna for Universal UHF RFID Handheld Reader
Broadband CPW-Fed Circularly Polarized Square Slot Antenna for Universal UHF RFID Handheld Reader Open
This paper presents a new coplanar waveguide (CPW)-fed circularly polarized square slot antenna (CPSSA). The proposed antenna uses an inverted Z-shaped feedline protruded from the signal line of the feeding CPW. Circularly polarized (CP) r…
View article: A Compact Broadband Circularly Polarized Slot Antenna for Universal UHF RFID Reader and GPS
A Compact Broadband Circularly Polarized Slot Antenna for Universal UHF RFID Reader and GPS Open
A novel compact printed broadband circularly polarized slot antenna is proposed in this paper. The antenna consists of an inverted L-shaped coplanar waveguide feed structure and a square ground plate loaded with three rectangular slots. Th…
View article: Side-Frame Dual-Band MIMO Antennas for 5G Smartphone Applications
Side-Frame Dual-Band MIMO Antennas for 5G Smartphone Applications Open
A side-frame dual-band multi-input multi-output (MIMO) antenna system for fifth-generation (5G) mobile communication in smartphone applications is presented, operating in 3.5 GHz band (3400-3600 MHz) and 5 GHz band (4800-5000 MHz). The pro…
View article: DESIGN AND OPTIMIZATION OF CPW-FED BROADBAND CIRCULARLY POLARIZED ANTENNA FOR MULTIPLE COMMUNICATION SYSTEMS
DESIGN AND OPTIMIZATION OF CPW-FED BROADBAND CIRCULARLY POLARIZED ANTENNA FOR MULTIPLE COMMUNICATION SYSTEMS Open
A novel coplanar waveguide (CPW) fed wide slot antenna for broadband circular polarization (CP) operation is proposed in this letter.Utilizing an asymmetrical ground plane and an open slot, broadband axial ratio and good impedance characte…
View article: Detection techniques of biological and chemical Hall sensors
Detection techniques of biological and chemical Hall sensors Open
Integrated magnetic Hall effect sensors have been widely used in people's lives over the past decades. They are still gaining enormous attention from researchers to establish novel applications, especially in biochemistry and biomedical he…