A5003223861- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Microwave Engineering and Waveguides
- Energy Harvesting in Wireless Networks
- Antenna Design and Optimization
- Metamaterials and Metasurfaces Applications
- Advanced Image Fusion Techniques
- Image and Signal Denoising Methods
- Advanced Image Processing Techniques
- Millimeter-Wave Propagation and Modeling
- Full-Duplex Wireless Communications
- RFID technology advancements
- Image Enhancement Techniques
- Remote-Sensing Image Classification
- Photoacoustic and Ultrasonic Imaging
- Industrial Technology and Control Systems
- Electromagnetic Simulation and Numerical Methods
- Underwater Vehicles and Communication Systems
- Electromagnetic Scattering and Analysis
- Wireless Body Area Networks
- Photonic and Optical Devices
- Elevator Systems and Control
- Microwave Imaging and Scattering Analysis
- Plasmonic and Surface Plasmon Research
- Lightning and Electromagnetic Phenomena
Dalian University of Technology
2019-2025
Nanchang University
2023-2024
Southeast University
2023-2024
State Key Laboratory of Millimeter Waves
2024
Dalian University
2021-2022
ORCID
2022
Harbin Institute of Technology
2012-2021
University of Hong Kong
2015-2018
Shandong Jiaotong University
2018
Heilongjiang Institute of Technology
2014
Miniaturized mobile electronic system is an effective candidate for in situ exploration of confined spaces. However, realizing such still faces challenges powering issue, untethered mobility, wireless data acquisition, sensing versatility, and integration small scales. Here, we report a battery-free, wireless, miniaturized soft electromagnetic swimmer (SES) that achieves multiple monitoring capability water environments. Through radio frequency powering, the battery-free SES demonstrates...
A low-profile dual-polarized dipole antenna using wideband artificial magnetic conductor (AMC) reflector with stable radiation pattern for use in 2G/3G/4G base stations operating from 1.7 to 2.7 GHz is presented. The consists of a pair crossed-dipoles and AMC which an surface, metallic ground plane, the air substrate between them. designed operate 90° reflection-phase bandwidth 1.64-2.88 (54.8%). Compared perfect electric reflector, profile height reduced by half 36 18 mm, resulting...
A novel miniaturized dual-band dipole array antenna consisting of two parallel $1 \times 4$ subarrays for use in base stations operating the digital cellular system (DCS) and wideband code division multiple access (WCDMA) bands is presented. Size miniaturization realized by utilizing band notch dipoles (BNDs) as elements artificial magnetic conductors reflectors reductions width profile height antenna, respectively. Using BNDs high radiation suppression at desired frequencies, from DCS...
Detection of breast cancer in its early stage is critical for reducing the death rate. In this paper, a compact and flexible tumor sensing system designed using dual-polarized UWB antenna arrays. Each unit composed two orthogonally placed circular monopoles, which are printed on low-profile Kapton polyimide. The antennas fed by single-side coplanar waveguides size reduction. A wide band from 3.9 GHz to 19 obtained, with an isolation above 16 dB over operating band. High fidelity factors...
This paper proposes a dual-band co-aperture antenna, which covers 2.09–11.61 GHz (9.52 GHz, 138.9%) and 21.6–29.6 (8 31%). The overall size of the proposed antenna is 0.76 × 0.37 λ03, where λ0 free space wavelength lowest operating frequency 2.09 GHz. By removing internal metal monopole adding Vivaldi at bottom bowl radiation characteristics can be achieved. A medium polarization converter used to achieve circular improve broadside gain in high-frequency band. simulation results show that...
In this article, a systematic and generally applicable method to synthesize patterns for single antennas is proposed based on characteristic mode analysis (CMA). Both the theoretical real implementations are taken into consideration. To obtain desired pattern, we first calculate weighting coefficient of each using correlation between field pattern. Afterward, synthesized current feeding vector solved CMA, providing information, such as numbers, locations, amplitude, phase. The nonsparse,...
This communication proposes to use the 1-λ resonant mode of slot radiator with single feeding for bandwidth enhancement. The impedance a simple is studied using computer simulation. Since operating in requires longer length, large square used at both ends reduce required length. results study are subsequently design wideband circularly polarized (CP) crossed antenna (CSA) feeding. CSA consists two radiators having same length and placed shape, i.e., orthogonal positions. A microstrip line...
In this communication, a novel dipole configuration with reactive loadings is proposed for the design of low-profile dual-band dual-polarized stacked antenna arrays. For lower band (LB1, 3.3-3.6 GHz) dipole, its inductive are implemented at end each arm to suppress basic resonant mode rejection higher frequencies. (HB2, 4.8-5.0 LC beginning arm, where inductor and capacitor, respectively, increase Q-factor improving out-of-band balance impedance matching. Hence, LB1 HB2 dipoles can be...
The performance of a low-profile dielectric resonator (DR) antenna (DRA) is hardly maintained across wide frequency range due to the multiple higher-order modes. In this letter, and broadband DRA proposed with stable broadside radiation over frequencies. A detailed analysis excited modes conducted identify proper for operation. Different air regions are then introduced in top layer DRA. This allows excitation DR while suppressing unwanted off-boresight To validate design, developed cover...
A novel broadband low-profile circularly polarized (CP) magneto-electric (ME) dipole antenna is proposed in the letter. Sharing same aperture, a pair of electric dipoles (E-dipoles) and magnetic (M-dipoles) are combined through four bulges corners ring. The arms ring work as antennas, i.e., E-dipoles, whereas slots formed by with central patch slot M-dipoles. To realize CP radiation, vacant-quarter printed rings short-end microstrip lines utilized to excite antennas simultaneously....
To avoid being detected by radar, it is necessary to reduce stealthy military platforms' radar cross section (RCS). The operation of overlaying the metasurface (MS) on targets a good solution. A simple chessboard MS structure that can achieve low RCS over large bandwidth proposed. Only one unit cell used construct MS. First, working in 0.5 and 1−λ modes designed stable phase difference 180° for y- x-polarized waves. Then, cells rotated ones are form with different distributions. compared...
A low-profile dual-polarized patch antenna with stable radiation pattern for use in base stations operating from 1.7 to 2.7 GHz is presented. The consists of a square radiator placed at 20 mm (0.14λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> the center frequency 2.2 GHz) above ground plane. For bandwidth enhancement, dual fed using four probes, each having U-shape. Two wideband 180° baluns are designed composite right/left handed...
A wideband metasurfaced (MS) slot antenna is proposed for circularly polarized (CP) operation. The consists of a crossed (CSA) and MS placed at short distance above the CSA. CSA has two slots in orthogonal positions with distributed elements to generate E-fields 90°-phase difference CP radiation. microstrip line used single feed center. Simulations measurements are study design antenna. measured results show that, use MS, impedance bandwidth can be increased from 4.24–6.78 GHz (2.54 GHz,...
The fusion of dipole and patch antennas is proposed to achieve a wide band low profile. By loading parasitic elements, the hybrid modes are excited simultaneously with same feeding shared aperture. Employing double-layer-metal artificial magnetic conductor (AMC) replace PEC as reflector, height reduced from 22.5 mm (0.165 <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">λ</i> at 2.2 GHz) 17.5 (0.128 ). Two shorting pins loaded between radiator...
A simple compact circularly polarized (CP) cross slot antenna with a wide frequency tuning range has been presented in this letter. Four identical varactors are loaded at the ends of for varying operating frequency, and only one voltage is adopted to control varactors. Distributed inductors capacitors employed realize CP radiation. By value varactors, 41% (1.65-2.5 GHz) achieved. Stable radiation patterns obtained all frequencies across entire bandwidth. The proposed good radiator that can...
Chipless RFID tag is a promising technique for future systems due to its low cost and high reliability. In this paper, three chipless tags are designed based on retro-reflective structures, in order increase the reading range enhance tag's robustness direction of interrogating signals. The include two linearly polarized with non-symmetric symmetric filters circularly tag. Before introducing antennas, design guidelines how arrange higher detection accuracy provided standing wave analysis....
In this communication, leaky-wave antennas (LWAs) at mm-wave bands are designed on the metal rims of mobile handsets for communications. Two different LWAs, constructed from rectangular slits and stepped slits, respectively, same frequency band, with their main lobes pointing to directions. Since LWAs narrow, two layers can be accommodated along height frame. Hence, frames around chassis built by twelve in total, four each longer edge shorter chassis. Unlike traditional handset, phased array...
A dual-polarized dual-band antenna with a simple bifunctional metasurface (MS) is proposed. Previous studies often require various elements to design MSs, and most monofunctional MSs are designed control one intrinsic property of electromagnetic wave. In contrast, the proposed MS uses only type element realize dual functions. lower frequency band, helps excite TM leaky-wave mode together slot obtain wide bandwidth 25.8%. higher functions as selective surface enhance gain by 6 dB decreases...
A compact dual-band 4×4 butler matrix is presented for multi-beam antenna consisting of coupler and phase shifter. The network realized on a single substrate without any crossovers. Within the working frequency range, exhibits good couplings between −7.6 −6.2 dB, progressive ports can create four radiation beams at 2.45GHz 5.8GHz.
This letter presents a wideband cross-slot antenna (CSA) with inductor loadings for dual polarization. The effects of the ground size on impedance are investigated. To achieve compact size, very small having same hypotenuse length as slot is used. used at both ends to reduce further. Simulated results show that loaded inductors contribute more constant frequency response 1-λ mode, and moves toward lower inductors. Based inductor-end dual-polarized CSA using two orthogonal radiators designed....
This article presents a novel method to design multiple-input–multiple-output (MIMO) antennas based on characteristic mode analysis (CMA), which is different from using individual excitation of each for high isolation. The CMA performed pair symmetric slots two connected dipole (an MIMO pair), so that desired modes can be generated at the same frequency, one in common and other differential mode. Hence, when antenna element excited, combine cancel element, leading port designed applied use...