A5053092191- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Optimization
- Plasmonic and Surface Plasmon Research
- Metamaterials and Metasurfaces Applications
- Energy Harvesting in Wireless Networks
- Advanced SAR Imaging Techniques
- Advanced biosensing and bioanalysis techniques
- RFID technology advancements
- Bacteriophages and microbial interactions
- DNA and Biological Computing
- Near-Field Optical Microscopy
- Millimeter-Wave Propagation and Modeling
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic Crystals and Applications
- Engineering Technology and Methodologies
- Bluetooth and Wireless Communication Technologies
- Advanced Control and Stabilization in Aerospace Systems
- Indoor and Outdoor Localization Technologies
- Optical Systems and Laser Technology
- Facial Trauma and Fracture Management
- Photonic and Optical Devices
- Infrared Target Detection Methodologies
- Radio Frequency Integrated Circuit Design
Shanghai Jiao Tong University
2021-2024
Wuhan Ship Development & Design Institute
2022
In this article, a long-range underwater electromagnetic (EM) communication system is proposed based on an ultracompact extremely low-frequency (ELF) magnetomechanical transmission antenna (UEMTA). The transmitter mainly includes waveform generator, variable frequency drive (VFD), and three-phase induction motor. receiver consists of 200-turn coil signal analyzer. Based the equivalent model rotating magnetic dipole, principles EM across interface water air are analyzed. ELF wave propagating...
A novel low-profile phased antenna with dual-port and its two types of 1-D linear array to 2-D space wide-angle beam scanning are proposed. The unit is composed fishbone structure rhombus parasitic patch, which folded into n-shaped low profile <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$0.08\lambda $ </tex-math></inline-formula> . By adjusting the phase difference ( notation="LaTeX">$\Delta \varphi$ )...
In this paper, a novel circularly polarized (CP) leaky-wave antenna with wide bandwidth is presented. The proposed has structure based on microstrip line loaded X-shaped slots. To generate waves, the feeding position of shifted from center X-slot to edge. Then straight feed can form phase difference between two arms without meandering line, increasing radiation efficiency. When 90degrees, radiate orthogonal field within required phases, thus synthesizing circular polarization. have no...
A wideband circularly polarized periodic leaky-wave antenna (PLWA) using a novel unit cell with X-shaped slot is proposed. The fed by 50- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\Omega $ </tex-math></inline-formula> microstrip line an stub closely on top of it. Furthermore, equivalent circuit the proposed established and verified. Approaches are introduced to enhance impedance circular polarization...
A design approach of triband conformal monopolar antenna combining cavity mode and equivalent circuit (Ec) is proposed. First, based on analysis, two lower closer resonant frequencies in the VHF-band are generated by introducing slot rings circles short vias to a circular parallel-plate structure. Second, its Ec extracted modified. Then, geometry structure improved accordingly. An inverted truncate cone introduced modify characteristic impedance monolithic radial transmission line obtain an...
A novel compact wideband load-bearing planar inverted-F fishbone antenna (PIFFA) element and a circularly polarized (CP) unit based on PIFFA are proposed. The main radiator of the is folded structure with dimensions <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$0.14\lambda _{0} \times 0.19\lambda 0.15\lambda _{0}$ </tex-math></inline-formula> , which excited by monopole. It works in hybrid mode dominated...
This paper proposes a low-profile magneto-electric (ME) dipole antenna based on comb structure as well its application in frequency-scanning array with ground. Both the magnetic and electric of ME consist structure. Owing to subwavelength characteristics structure, profile proposed is reduced by 72% 0.065λc (λc, wavelength at center frequency), compared conventional antenna. The measured results show single has an impedance bandwidth 14.65% (2.34 - 2.71GHz), high gain (∼ 8 dBi),...
<p>The generalized principle of pattern multiplication (GPPM) and its application to wide-angle scanning array are investigated. It includes the element factor (GEF), (GAF), their beam match condition. The GEF model based on phase mode currents in an aperture is given. A phase-mode antenna (PMA) with dual ports designed realize function unit aperture. prototype PMA exhibits a main lobe range -43.9° 43.9° at 2.4 GHz. 1-D four-element phased using spacing 0.7λ GPPM verify GPPM. can scan...
We demonstrate analytically the technique and arrangement of nanoparticle antenna arrays with enhancement optical characteristics at an frequency regime. The array are enhanced by introducing inverse active spherical coated (I-CNP). This is designed combined already demonstrated CNPs. Consequently, three types CNPs their inverse-based plasmonic nano-antenna configurations have been studied: two CNP configurations, (I-CNP) a I-CNP configuration in presence passive elements. Detailed...
A long range dipole with omnidirectional pattern based on spoof surface plasmon polaritons (SSPPs) structure is presented in this paper. The consists of an SSPPs and two monopoles reversed phase. Although the length twice wavelength center frequency, it can have stable high gain beam non-bifurcation characteristics at same time. realized 4.6-6.3 dB within band 4.4-4.55 GHz 5.45-5.55 GHz.
In this paper, a new design of reconfigurable antenna based on spoof surface plasmon polaritons (SSPPs) parity mode switching is proposed. The just uses one PIN diode realize the between omnidirectional radiation pattern and directional pattern. For simplicity, metal block added in simulation to simulate conduction diode, removed disconnection diode. simulated results show that works within 5.52GHz-5.62GHz by off. When on, endfire can be obtained its operating frequency 5.46GHz-5.6GHz with...
The transmission loss of EM wave under water is very large and only the VLF/ELF may be available with huge antenna. system based on miniaturized mechanical antenna investigated in short distance. Multiple sets experiments underwater across interface air-water distance were carried out. And terminal received clear signals despite differences between those cases.
A novel dual-port antenna with reconfigurable meta-surface is proposed. When the excited through single-port, its pattern end-fire. same phase, bidirectional broadside. To achieve directional radiation, a metasurface introduced to realize two states including equivalent PEC and PMC. With different excitation modes of metasurface, reflector can obtain five typical patterns. The main lobe deflect 49° hign gain over 9 dBi. In addition, has small size 0.23λ × 0.32λ. It be predicted that proposed...
The general model of a dual-port phased antenna with reflector is investigated. And novel monopole corrugated structure above HIS size 0.30λ×0.39λ×0.16λ proposed. can work in single-port excitation mode main lobe deflecting to ±39° and scanning from 0° 55°. An eight-element array 0.5λ spacing constructed based on the proposed which scan two modes too. It achieve wide-angle up ±82° measured gain range 12.6-9.6 dBi mode. Moreover, mode, internal phase difference between ports one element shift...
A novel triport phase mode antenna is proposed for wide-angle and polarization scanning, along with a 1-D linear generalized phased array (LGPA) 2-D space (xo z, yo xoy planes) scanning scanning. To produce continuous beam characteristics, the difference ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\Delta \varphi $ </tex-math></inline-formula> ) between feed ports can be adjusted from 0° to 180°,...
Aperture radiation control method based on the reflection theorem is proposed. It understanding of theorem, starting from infinite PEC floor illuminated by plane waves, and extending it to finite floor. By changing size adjusting incidence angle an approximate correspondence between discovered. Finally, Radiation pattern reconstructed simulating induced current with distribution elements aperture.
A dual-port pattern reconfigurable antenna based on SSPPs is proposed. The consists of a monopole, tapered coplanar waveguide, the symmetric slot transmission line and two leaf-shaped metal patches. By changing feeding port to generate odd mode or even SSPPs, different radiation patterns were realized. simulated results show that works omnidirectional within 5.59GHz-6.04GHz when port1 fed. endfire can be obtained with port2 fed its operating frequency band 5.63GHz-6.14GHz.