A5020201904- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Antenna Design and Optimization
- Microwave Engineering and Waveguides
- Bluetooth and Wireless Communication Technologies
- Terahertz technology and applications
- Radio Wave Propagation Studies
- Research studies in Vietnam
- Radio Astronomy Observations and Technology
- Educational Reforms and Innovations
- Regional Development and Environment
- Millimeter-Wave Propagation and Modeling
Vinh University
2016-2023
AGH University of Krakow
2017-2019
Wrocław University of Science and Technology
2016-2019
Abstract A simple design of a broadband multifunctional polarization converter using an anisotropic metasurface for X-band application is proposed. The proposed consists periodic array the two-corner-cut square patch resonators based on FR-4 substrate that achieves both cross-polarization and linear-to-circular conversions. simulated results show displays linear conversion in frequency range from 8 to 12 GHz with efficiency above 90%. kept higher than 80% wide incident angle up 45°....
We report a numerical study on the design of broadband metamaterial absorber (MMA) with single layer metal–dielectric–metal based an FR-4 substrate for X-band applications. The MMA structure consists periodic array split circle ring and lumped resistors coupled within segments. achieves absorption response in frequency range 7.8–12.6 GHz absorptivity above 90% under normal incidence all polarization angles. remains 70% 6.8–11.8 at wide incident angles from 0° to 30° both transverse electric...
We report a wideband and polarization-/wide-angle insensitive metamaterial absorber based on symmetry structure associated with surface mount resistors. The proposed consists of periodic array top metal resonator loading four lumped resistors continuous ground plane separated by dielectric substrate FR-4. A prototype the is fabricated measured, confirming good agreement between measurement simulation results. shows polarization-insensitive behavior absorption response in frequency range from...
Developing a millimeter-wave (mm-wave) antenna that enables wide bandwidth with its operating band covering the entire global 5G spectrum is highly desirable but very challenging for achieving both compact size and high-performance antenna. Herein, mm-wave microstrip patch (MPA) multiple-input multiple-output (MIMO) configuration based on metasurfaces system applications are proposed investigated by simulation method. To improve performance keep low-profile low-cost MPA antenna, square ring...
Abstract A simple design of terahertz polarization converter has attracted great attention owing to the applicability technology in broad fields such as imaging, non-destructive sensing, and communications, but remains a key challenge simultaneously achieve both wide bandwidth high conversion efficiency. Here we report single-layer metasurface-based formed by combination different resonator shapes that realizes cross-polarization achieves an ultra-broadband efficiency with oblique incidence...
In this paper, the design of fractal antenna operating at two frequencies 0, 1.228 and 1.5745 GHz, GPS satellite system is presented. To achieve compact size dual frequency operation Minkowski island shorting pin on radiating element were used. The numerical simulations done by means HFSS software. Antenna was fabricated microwave laminate FR4-epoxy. experimental results agree favorable.
Paper presents a design of (1×4) fractal antenna array for the C-band satellite-TV ground station. The microstrip line feeding network is realized on same board with radiating elements, and combined shorting-pin to reduce elements size. Rogers RT/duroid 5880 microwave laminate permittivity ε=2.2 thickness h=1.57mm was used. Antenna operates at two resonant frequencies, f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> = 4.04...
This paper presents the design of a compact size Sierpinski carpet fractal antenna, operating in C-band with two resonant frequencies TV satellite system, namely (3.625 – 4.2) GHz, and (5.85 6,425) GHz. Antenna is designed on FR4 microwave laminate, return loss S11<−18 dB. Bandwidth antenna BW> 80 MHz, for VSWR<2, at 50 ohm input impedance. To achieve size, despite structure advantage authors used probe feed shorting pins aperture. The optimization was supported by means HFSS computer code....
This study presents an antenna design that operates at the three bands of Global Positioning System (GPS) receiver. The optimised Minkowski island fractal structure combined with central window is used to radiation surface reduce size and adjust resonance frequencies antenna. was designed, simulated by HFSS computer code, fabricated on microwave laminate FR4‐epoxy fast laser prototyping. resulting has been operating GPS‐bands: f L2 = 1.227, L5 1.176, L1 1.575 GHz, return loss S 11 < −15...
In this paper, an antenna design method operating at 3.5 GHz for 5G system is presented to improve its performance. The designed using fractal geometry combined with imperfectly structured ground plane. which, the radiation surface has form of a Minkowski island geometry, and removed part complementary split ring resonator unit cell. design, substrate material FR4-epoxy microwave laminates dielectric constant ϵ = 4.4, loss tangent (tan δ) 0.02, h 1.6 mm thickness used antennas. HFSS software...
The design of fractal antenna covering two-bands WLAN-MIMO system is presented. To achieve compact size and dual frequency operation the Minkowski island were used. numerical simulations done by means HFSS software. operates at 2.443 5.261 GHz WLAN-bands. overall dimension 23×23 mm 2 . Antenna was fabricated on microwave laminate FR4-epoxy. experimental results agree favorable.
Bài báo này trình bày một phương pháp thiết kế ăng ten hoạt động tại hai băng tần 28 GHz và 38 cho các ứng dụng 5G. Cấu hình của bao gồm miếng vá có dạng học fractal được sửa đổi kết hợp với cấu trúc siêu vật liệu là bộ cộng hưởng vòng phân chia sắp xếp quanh thành phần bức xạ như bề mặt. Các khảo sát trên chất nền Rogers RT/duroid 5880 hằng số điện môi 2,2, tiếp tuyến suy hao 0,0009 chiều cao 0,6 mm, chúng cấp nguồn bằng đầu dò đồng trục. Phần mềm HFSS sử để mô phỏng sự ten. So vi dải tròn...