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About 372 papers for “Reflective array antenna”
Meng Li · International Journal of Computer Applications Technology and Research · 2019
With the development of communication technology, people have higher and higher requirements for communication quality. Traditional array antennas require complex feed networks and the necessary phase shifters.
Cited by 0Open access
Anatoly I. Firsenkov, A.B. Guskov, А. С. Смирнов et al. · ITM Web of Conferences · 2019
The results of a constructively simple high-tech small-sized integrated element of the Ka-band electric beam scanning reflective phased array antenna (PAA) development are shown. Beam scanning sector of the phased array antenna is up to 60 by both coordinates. The PAA element is based on the Faraday type waveguide ferrite phase shifter, which works on the circular polarized electromagnetic waves. More than 30000 PAA elements has been produced, 100% control and statistical data processing of their main characteristics has been carried out. Graph for initial phases and steepness of linearized phase characteristics, medium and maximum losses of PAA elements are performed. Average value of the average deviation for parameters which is important for PAA and the beam control system design have been determined. The developed element can be used in PAA which have different sizes, forms and sectors of electrical beam scanning. Small deviations in the characteristics of PAA elements from the linearized characteristics indicate the high quality of the production and their identity, which makes it possible to create PAA without taking into account the real individual parameters of mass-produced PAA elements.
Cited by 0Open access
Yitong Cheng, Yuqi Zhang, Liang Zhou et al. · 2024
Reflective surface antenna based on artificial electromagnetic metasurface manifests itself an innovative technical scheme, which involves combining the advantages of reconfigurable antenna arrays to control electromagnetic reflection dynamically and precisely. In this way, the antenna can adapt to different environments and requirements, provide new ideas for the tailoring and regulation of electromagnetic propagation. Here, a reconfigurable metasurface reflective antenna array which center frequency is in the X-band was designed. When the frequency of the incident electromagnetic wave is 10GHz, the phase-frequency response of the adjacent structural units to the electromagnetic wave differs by 36°, forming a uniform distribution of phase gradient from 0° to 360°. The linearly polarized electromagnetic wave incident perpendicular to the AEM is modulated, and anomalous reflections along 45° and -45°at 10GHz for the single- and dual-polarization, respectively.
Cited by 0
Xinxue Li, Yuhao Zhang · 2022
The traditional analysis method of circularly polarized reflective array antenna is insufficient in analyzing the radiation characteristics of antenna, which leads to low accuracy in full-wave analysis of antenna. Therefore, a high-power full-wave analysis method of circularly polarized reflective array antenna is proposed in this paper. Firstly, the working principle of circularly polarized reflective array antenna is studied, and relevant parameters are collected. Then, according to the parameters, the phase distribution, radiation characteristics, aperture efficiency and unit spacing of reflective array antenna are analyzed. The performance of the designed array antenna is tested by the simulation experiment, and the superiority of this method is verified. The phase difference of this method is 7.7°±4°, and the errors of gain and axial ratio are 0.7dB and 0.5dB, respectively. The test results are in good agreement with the simulation results, which proves that this method can obtain high-precision analysis results of circularly polarized reflective array antenna.
Cited by 0
Xiao Ling He, Yao Zhang · IEEE Antennas and Wireless Propagation Letters · 2023
This letter presents a wideband dual-polarized antenna array decoupling structure based on a polarization convert reflective surface (PCRS). The PCRS unit consists of a rectangular metal patch and a pair of symmetrical bow-shaped metal patches, which are printed on the top and bottom sides of a dielectric substrate, respectively. When a linearly polarized (LP) incident wave, for example, +45° LP wave, transmits through this PCRS, two orthogonal partially reflective (±45° LP) waves are generated concomitantly. These partially reflective dual-polarized waves neutralize the coupling wave between the antenna elements, which can significantly suppress the mutual decoupling between the copolarized and cross-polarized antennas. In order to obtain a wide decoupling band, a two-layer PCRS structure is used to generate more reflective waves and increase their path lengths. For verification, 1 × 4 dual-polarized array antennas with the PCRS are implemented. The results show that the isolations between the copolarized and cross-polarized adjacent antennas are increased from around 13 dB to better than 20 dB within 3.5–5.0 GHz (35.3%). In addition, simulation results reveal that the beam performance of the 1 × 4 array model is almost the same with and without using the PCRS. This indicates that the proposed PCRS has little effect on the antenna radiation performance.
Cited by 6
Lan Ngoc-Nguyen, Văn Đức Nguyễn, Phan Thanh Toan · Communications in computer and information science · 2025
Cited by 0
Yao Zhang, Xiao Ling He, Huan Yang Chen et al. · 2024
This research paper introduces a new decoupling design that utilizes a Polarization Convert reflective surface (PCRS) for a wideband dual-polarized antenna array. When a linearly polarized (LP) incident wave, such as a +45° LP wave, interacts with the PCRS, it generates two orthogonal partially reflective waves (±45° LP) simultaneously. This unique characteristic of the PCRS enhances isolations between co- and cross-polarized ports in dual-polarized antenna. To achieve a broad decoupling bandwidth, a two-layer PCRS structure is utilized to increase reflective wave generation and extend their path lengths. The implementation of 1 × 4 and 2×2 dual-polarized array antennas with the PCRS demonstrates the effectiveness of this design. The results show significant enhancements in isolations between co- and cross-polarized ports within the 3.5–4.9GHz frequency range, with isolations exceeding 20dB, representing a 33.3% increase in bandwidth. Simulation results indicate minimal impact of the PCRS on the beam scanning performance of the 1 × 4 array model, suggesting that the PCRS has little effect on the antenna’s radiation characteristics. This novel decoupling structure using the PCRS shows promising potential for improving the performance of wideband dual-polarized antenna arrays.
Cited by 0
V.M. Seleznev · Radioengineering · 2022
Problem statement.To fully utilize the millimeter wave spectrum in 5G systems, it is planned to adopt a heterogeneous network (HetNet) architecture, in which modern 4G Internet access technologies operating within bands below 6 GHz are integrated with new broadband communication systems of the millimeter wavelength range.However, the deployment of heterogeneous networks in urban conditions that are difficult for the propagation of millimeter-wave radio signals imposes special requirements on antenna systems.Therefore, the development of cheap millimeter-range scanning antennas with a high gain and a working frequency band of several gigahertz is an urgent task.Objective.The main purpose of this work was to develop a scanning antenna system of the 60 GHz band with a planar reflector combined with a compact phased array antenna (PAA) module.Results.The measurement results have shown that the developed reflective array antenna within the band of 57.24-65.88GHz, divided in accordance with IEEE 802.11ad and IEEE 802.11ay standards into four channels with a bandwidth of 2.16 GHz, has a high gain of 20.1-24.5 dBi and is capable of performing electronic beam scanning in the azimuthal plane in the ±15° sector.Moreover, the simulation results have shown that the full coverage sector in the azimuthal plane may potentially amount to ±35°.Practical significance.The use of such antennas at both ends of reconfigurable relay communication lines will allow data to be transmitted over a distance of 100-150 m at a speed of 2.5-4.62Gbps.
Cited by 3Open access
Tomislav Debogović, Juraj Bartolić, Julien Perruisseau‐Carrier · Infoscience (Ecole Polytechnique Fédérale de Lausanne) · 2012
This paper presents an approach to simultaneous beamwidth and beam-steering control using an array-fed reconfigurable partially reflective surface (PRS) antenna. Requirements and trade-offs regarding the design of such antennas are discussed. The antenna operation is confirmed by full-wave simulations.
Cited by 12Open access
Tomislav Debogović, Julien Perruisseau‐Carrier · IEEE Transactions on Antennas and Propagation · 2013
In this communication we present a concept of a partially reflective surface (PRS) antenna capable of independent beam-scanning and beamwidth dynamic control. The beamwidth is controlled by reconfiguring the PRS reflectivity via embedded varactor diodes, while the beam is steered by using a small phased array in the H-plane as a source antenna exciting the Fabry-Pérot cavity. A fully operational prototype is fabricated and measured upon reconfiguration, demonstrating the viability of the concept and good agreement between simulated and measured results. The achieved beamwidth variation is from 18.7° to 22.4°, with the scanning range of 15° and 20° for the narrowest and the widest beamwidth, respectively.
Cited by 132
Huanhuan Yang, Tong Li, Sijia Li et al. · 2022
This paper makes a comparison study of three 1-bit reconfigurable metasurfaces. Aimed at applying in low-cost phased array antenna, the three metasufaces adopt one PIN diode in each element and have a relatively large periodicity. Simulation results suggest that these three metasurfaces achieve 1-bit reflection phase with low loss and one of them has both lowest loss and widest working band.
Cited by 1
Ayan Chatterjee, Abhishek Dutta, Partha Pratim Sarkar · 2024
The development, analysis and application of a single layer Frequency Selective Surface (FSS) showing reflective response at 28 GHz for wireless communication applications such as 5G is proposed in this paper. The single layer structure exhibits an operating band of 26-29.46 GHz with -10 dB transmission coefficient resonating near 27.9 GHz. The FSS exhibits reflection coefficient a close to 0 dB level at the desired frequency which makes it useful as a reflecting surface. The single layer FSS with the -10 dB bandwidth of around 12% exhibits a linearly decreasing reflection phase in the desired band of operation which makes it useful as a reflector for bi-directional and omni-directional high frequency antennas for augmenting the antenna gain in the broadside direction. The FSS is later implemented in a slotted array antenna based on Substrate Integrated Waveguide (SIW) as a reflector. The back radiation level of the antenna is reduced by 5.5 dB with the use of the FSS. The SIW antenna with the FSS is suitable for Ground Surveillance Application due to its Fan beam in the H plane. The proposed FSS is also appropriate for various other wireless communication areas especially 5G in the 28 GHz band.
Cited by 1
Masayuki Oishi, Kosuke Nishimura, S. Akiba · 2013
RoF uplink transmission scheme for remotely beam steerable photonic array-antennas utilizing reflective semiconductor optical amplifiers was proposed. Our proposed scheme would be able to realize cost effective photonic antenna systems with a simple structure.
Cited by 1
Huanhuan Yang, Tong Li, Sijia Li et al. · 2022
This paper makes a comparison study of three 1-bit reconfigurable metasurfaces. Aimed at applying in low-cost phased array antenna, the three metasufaces adopt one PIN diode in each element and have a relatively large periodicity. Simulation results suggest that these three metasurfaces achieve 1-bit reflection phase with low loss and one of them has both lowest loss and widest working band.
Cited by 0
Yifan Zhao, Jing Du, Zhengsen Ruan et al. · Conference on Lasers and Electro-Optics · 2017
A chip-scale reflective metasurface is designed and fabricated for generating 2 μm orbital angular momentum (OAM) mode with topological charge of +1 or −1. We also study the operation performance of fabricated OAM mode generator in experiment.
Cited by 2
Xin Wang, Huaiqing Zhang, Mingyu Lu · IEEE Transactions on Antennas and Propagation · 2024
A novel architecture of retro-reflective beamforming is proposed for wireless power transmission applications. In contrast to a conventional retro-reflective beamformer with a 2-D transmitting antenna array controlled by a 2-D receiving antenna array, the novel retro-reflective beamformer includes a 2-D transmitting antenna array controlled by multiple 1-D receiving antenna arrays. Compared with the conventional architecture of retro-reflective beamforming, the architecture proposed in this communication has better flexibility and lower complexity. Numerical results indicate that the wireless power transmission efficiency of the novel architecture has little difference from that of the conventional architecture when the location of a wireless power receiver with a clear line-of-sight path is not far off the broadside direction of the retro-reflective beamformer. Some preliminary experiments are conducted in an anechoic chamber as well as an indoor environment to verify the numerical studies. The experimental data are in agreement with the numerical results.
Cited by 2
Xin Wang, Huaiqing Zhang, Shiwei Dong et al. · Space Solar Power and Wireless Transmission · 2024
The development of space solar power satellites aims to harvest solar power by artificial satellites over the earth’s geostationary orbit and then deliver the harvested power to the earth wirelessly. The retro-reflective antenna array technique is believed to be a close-to-optimal technical approach to achieve efficient wireless power transmission from a geostationary satellite to the earth, as it is capable of generating a microwave power beam aiming at a ground station on the earth via analyzing a pilot signal broadcasted by the ground station. In this paper, some of our preliminary research outcomes on retro-reflective antenna array for space solar power applications are reported. In the theoretical part of this paper, closed-form formulations with precision better than the classic theory of phased array are derived to analyze the performance of retro-reflective antenna array when the far zone condition is not satisfied between the space solar power satellite and the ground station. In the experimental part of this paper, a bench-scale retro-reflective antenna array with physical dimensions of about 0.6 m by 0.6 m is fabricated and tested. The theoretical and experimental results demonstrate that the microwave beam generated by a satellite-borne retro-reflective antenna array could be adjusted in real time to aim at the location from which the pilot signal stems. Based on the theoretical and experimental studies of this paper, systematic research endeavors are being conducted on the retro-reflective antenna array for space solar power applications.
Cited by 8Open access
Ryusei Yamada, Toru Fukasawa, Shigeru Makino · 2024
Reflector array antenna consists of a horn antenna as the primary radiator and a reflector mirror made of planes. The antenna has the disadvantage of narrow bandwidth due to phase errors on the aperture plane at frequencies other than the design frequency. Various studies have been conducted to improve the narrow-bandwidth characteristics, but the gain reduction due to phase error is a major bottleneck in reflector array design. In this study, we investigate the residual aberration, which is considered to be inevitable in the characteristics of reflective array antennas, for wideband reflective array antennas, focusing on the primary radiator in the reflective array antenna. A method to correct the residual aberration by controlling the phase center position of the primary radiator is proposed, and a wideband reflectarray antenna using this method is described and its effectiveness is verified from measurement results.
Cited by 1
Meng Cao, Zhenghui Xue, Wu Ren et al. · 2013
In recent years, Metamaterials is widely applied in the field of microwave, include in the field of antenna studies, but little of them come down to half wave antenna and antenna array. So a half wave dipole antenna and antenna array are simulated as a benchmark, antennas loading reflector, metal reflective plate and Metamaterials reflective plate are simulated respectively. The simulation results show that the Metamaterials can effectively increase the antenna's and array's gain, especially the side-fire antenna array's gain.
Cited by 0
А.О. Kasyanov · 2005
In this paper design of the measuring set for antennas measurements based on the the reflective type antenna array are considered. Reflectarray is executed on the basis of microstrip dipoles. In structure of each printed dipole of the reflective type antenna array is present controllable microwave element. Changing conductivity of such element, we can effectively operate by length of a printed dipole of the reflective type antenna array. At the same time change of a dipole length results to essential variation of it's radar cross-section. Thus, there is an opportunity in the electric way to change a place of the greatest reflection from the reflective type antenna. This circumstance enables to measure a near fleld of the researched antenna. It is obvious, that the most convenient for such researches appeared aperture aerials. Microstrip reflectarrays because of their high adaptability to manufacture appeared the most convenient tool in such near field antennas measurements.
Cited by 0