Journal of Applied Physics, Journal Year: 2025, Volume and Issue: 137(1)
Published: Jan. 3, 2025
In this paper, we propose a microstrip antenna that incorporates dual-polarization and bidirectional focusing metasurface (MS) for achieving high-gain transmission in circular polarization (CP) reflection linear (LP) radiation, respectively. Initially, design MS enables independent manipulation of the transmitted CP wave at lower frequency 8.2 GHz reflected LP higher 16.2 GHz, The unit-cell comprises combination an outer bilayered split-ring resonator, along with inner arc-shaped disk resonators, all separated by dielectric substrate. Subsequently, coaxial-fed laminated is designed capable realizing radiation gain approximately 4.9 dBic 4.8 dBi, To improve performance, construct integrated MS. This configuration to achieve peak 13.1 14.6 dBi relative bandwidth 6.79% (at GHz) 13.54% reflective wave, evaluate practicality our proposed design, fabricated measured antenna, both without results obtained from these measurements closely align simulations, thereby validating effectiveness antenna. provides practical solution facilitating high-speed information communication systems.
Language: Английский
Citations
7Waveform-Selective Metasurface Absorber With a Single-Patch Structure and Lumped Nonlinear Circuit for a Higher-Order Mode
IEEE Transactions on Antennas and Propagation, Journal Year: 2023, Volume and Issue: 71(11), P. 8677 - 8691
Published: Aug. 30, 2023
Microwave absorbers (MAs) play an important role in protecting sensitive electronic devices from electromagnetic (EM) interference by absorbing the energy of incoming waves and reducing unnecessary reflection or transmission. Here, we numerically experimentally demonstrated two types waveform-selective microwave metasurface (MMAs) with a single square-patch structure lumped nonlinear circuit. Our MMAs were designed to preferentially absorb signals at same frequencies, including higher-order mode. The proposed capacitor-type MMA was comprised connected diode bridge containing capacitor paired resistor parallel, which could effectively short pulses distinct frequencies. Similarly, inductor-type structure, except for internal circuit replaced inductor series, continuous (CWs) effects parameters components (resistor, capacitor, inductor) geometrical on absorptance these normal incident CWs systemically studied. Both simulation experimental results showed selective absorption specific waveforms high-order Thus, can provide wide application range, such as EM shielding, detection, sensing, wireless communications.
Language: Английский
Citations
40High-Gain Dual-Polarization Microstrip Antenna Based on Transmission Focusing Metasurface
Materials, Journal Year: 2024, Volume and Issue: 17(15), P. 3730 - 3730
Published: July 27, 2024
In this paper, a single-feed microstrip antenna (MA) equipped with transmission-mode focusing metasurface (MS) is proposed to achieve dual-polarization capabilities and superior high-gain radiation performance. The original-feed MA comprises two distinct layers of coaxial-fed tangential patches, enabling it emit circular polarization (CP) wave gain 3.5 dBic at 5.6 GHz linear (LP) 4 dBi 13.7 GHz. To improve the performance MA, transmission MS numerically substantiated. By positioning originally designed focal point MS, we create system capable achieving CP LP radiations significantly higher gains 12.9 14.8 GHz, respectively. Measurements conducted on fabricated closely align simulation results, validating effectiveness our approach. This work underscores significant potential high-speed data systems offers practical solution for enhancing in contemporary wireless communication systems.
Language: Английский
Citations
13Low-Profile Wideband Circular Polarization Metasurface Antenna With Characteristic Mode Analysis and Mode Suppression
IEEE Antennas and Wireless Propagation Letters, Journal Year: 2022, Volume and Issue: 22(4), P. 898 - 902
Published: Dec. 16, 2022
In this letter, a wideband circular polarization (CP) metasurface (MS) antenna is proposed, which composed of centrosymmetric structure with mode suppressor and an asymmetric aperture-coupled feed separated by dielectric substrates. Based on the characteristic theory, consisted L-shaped slot microstrip line employed to excite two orthogonal modes, have 90° phase difference obtain CP radiation. Meanwhile, methods been proposed expand bandwidth: one direct suppression decreasing overlap frequency operating nonoperating mode. The other indirect using suppressor. Finally, MS low profile λ 0 × 0.075 at 5 GHz fabricated measured. measured results show that has 3 dB axial ratio bandwidth 45.2% from 4.1 6.5 impedance 41.8% 6.31 GHz, peak gain 7.94 dBic 5.9 GHz.
Language: Английский
Citations
37Broadband and high-efficient reflective linear–circular polarization convertor based on three-dimensional all-metal anisotropic metamaterial at terahertz frequencies
Optics Communications, Journal Year: 2023, Volume and Issue: 541, P. 129544 - 129544
Published: May 4, 2023
Language: Английский
Citations
23Ultrabroadband chiral metasurface for linear polarization conversion and asymmetric transmission based on enhanced interference theory
Chinese Optics Letters, Journal Year: 2023, Volume and Issue: 21(11), P. 113602 - 113602
Published: Jan. 1, 2023
In this paper, we propose an ultrabroadband chiral metasurface (CMS) composed of S-shaped resonator structures situated between two twisted subwavelength gratings and dielectric substrate. This innovative structure enables high-efficiency linear polarization (LP) conversion, as well asymmetric transmission (AT) effect in the microwave region. The enhanced interference Fabry–Perot-like resonance cavity greatly expands bandwidth efficiency LP conversion AT effect. Through numerical simulations, it has been revealed that cross-polarization coefficients for normal forward (-z) backward (+z) incidence exceed 0.8 frequency range 4.13 to 17.34 GHz, accompanied by a ratio over 99%. Furthermore, our experimental results validate consistency among simulation, theory, measurement. Additionally, elucidate distinct characteristics significant through analysis azimuth rotation ellipticity angles, total transmittance, coefficient, electric field distribution. proposed CMS shows excellent properties via potential applications areas such radar, remote sensing, satellite communication.
Language: Английский
Citations
13Modeling an Antenna of a Satellite System for Transmitting and Receiving Digital Signals in the Microwave Range
Lecture notes in networks and systems, Journal Year: 2025, Volume and Issue: unknown, P. 95 - 102
Published: Jan. 1, 2025
Language: Английский
Citations
0Polarisation-Insensitive phase gradient metasurface gain enhanced antenna
AEU - International Journal of Electronics and Communications, Journal Year: 2025, Volume and Issue: unknown, P. 155836 - 155836
Published: April 1, 2025
Citations
0Low cross polarized leaf shaped broadband antenna with metasurface as superstrate for sub 6 GHz 5 G Applications
Optik, Journal Year: 2023, Volume and Issue: 282, P. 170858 - 170858
Published: April 5, 2023
Language: Английский
Citations
8Multifunctional coding metasurface for focusing and beam deflection based on polarization selection
Electromagnetics, Journal Year: 2024, Volume and Issue: 44(1), P. 57 - 71
Published: Jan. 2, 2024
In this paper, a full-space multifunctional coding metasurface (MS) with reflection and transmission integration is proposed to realize the independent manipulation of electromagnetic waves at two different frequencies. The unit consists layers dielectric substrate three metal patch, upper reflective layer composed ring split (URSR), middle groove (MSR), lower (LSR). mode works 13.4 GHz, incoming linear polarization (LP) beam deflection angle 34°. While 17.9 focusing achieved under action circular (CP) waves. order verify feasibility design, circularly polarized antenna placed 80 mm in -Z direction, gain increases from 7.5 dB 22.5 dB. Meanwhile microstrip antennas fabricated measured, results are consistent simulation results. method provides possibility high-rate information devices communication systems.
Language: Английский
Citations
2