A High Gain Dual-Polarization Reflectarray Antenna Design Using Modified Mushroom Elements

2021 ◽  
Author(s):  
Luohao Liu ◽  
Fan Yang ◽  
Shenheng Xu ◽  
Maokun Li
Keyword(s):  
High Gain ◽  
Antenna Design ◽  
Dual Polarization ◽  
Reflectarray Antenna

scholarly journals Optimization Environment Definition for Beam Steering Reflectarray Antenna Design

Mathematics ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 33
Author(s):  
Alessandro Niccolai ◽  
Francesco Grimaccia ◽  
Marco Mussetta ◽  
Riccardo Zich ◽  
Alessandro Gandelli
Keyword(s):  
Beam Steering ◽  
Aerospace Industry ◽  
High Gain ◽  
Antenna Design ◽  
Antenna Performance ◽  
Design Variables ◽  
Low Profile ◽  
Evolutionary Optimization Algorithms ◽  
Reflectarray Antenna ◽  
Complete Optimization

Reflectarray antennas are low-profile high-gain systems widely applied in the aerospace industry. The increase in their application is leading to the problem of getting more advanced performance while keeping the system as simple as possible. In these cases, their design cannot be conducted via analytical methods, thus evolutionary optimization algorithms are often implemented. Indeed, the design is characterized by the presence of many local minima, by high number of design variables, and by the high computational burden required to evaluate the antenna performance. The purpose of this paper is to develop, implement, and test a complete Optimization Environment that can be applied to achieve high scanning capabilities with a reflectarray. The design of the optimization environment has been selected to be flexible enough to be applied also with other different algorithms.

High Gain Low-Cost 20 GHz Antenna Design Based on the Utilization of Diffracted Fields from Dielectric Edges

2021 ◽  
Author(s):  
Yazan Al-Alem ◽  
Syed M. Sifat ◽  
Yahia M. M. Antar ◽  
Ahmed A. Kishk
Keyword(s):  
Low Cost ◽  
High Gain ◽  
Antenna Design

scholarly journals Design of Zipper Antenna for Women Safety

2020 ◽  
Vol 9 (8) ◽  
pp. 1-4
Keyword(s):  
Embedded System ◽  
Ground Plane ◽  
High Gain ◽  
Antenna Design ◽  
Suggested Model ◽  
Radiation Properties ◽  
Affected Person

The suggested system utilizes an inverted F metal zipper to act as an antenna. Here we have proposed an antenna which is designed using HFSS software in order to assure safety of women. The antenna design is carried out in three layers namely Ground plane, substrate and patch. Copper is used as ground and patch and substrate is made of FR4 material. The feeding point is identified at the bottom of the zipper, nearby one of the teeth. Simulations and measurements are made with HFSS. Changes in the radiations styles and the reflections coefficients happens when there is any disturbance in the teeth. The zipper constantly remains closed. The antenna will function even if the zipper is partially opened or closed. The suggested model remains as reconfigurable, particularly for radiation styles and also possess high gain value. The measured values give proper results based on simulations in terms of matching functionalities and radiation properties for the designed zipper, which acts as a good wireless product for women safety. This antenna design can be used in various applications when it is interfaced with some embedded system devices like GPS in order to find the location of the affected person and the material onto which it is going to be placed can also be made flexible that is, it can be used as Zip in dress material, hand bag, or can also be worn as an ornament.

scholarly journals Broadband Resonant Elements for 5G Reflectarray Antenna Design

2017 ◽  
Vol 15 (2) ◽  
pp. 793
Author(s):  
M. Hashim Dahri ◽  
M. R. Kamarudin ◽  
M. H. Jamaluddin ◽  
M. Inam ◽  
R. Selvaraju
Keyword(s):  
Antenna Design ◽  
Reflectarray Antenna

scholarly journals A Ka-Band Cylindrical Paneled Reflectarray Antenna

Electronics ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 654 ◽  
Author(s):  
Francesco Greco ◽  
Luigi Boccia ◽  
Emilio Arnieri ◽  
Giandomenico Amendola
Keyword(s):  
High Gain ◽  
Cylindrical Symmetry ◽  
Radiation Efficiency ◽  
Ka Band ◽  
Cylindrical Reflector ◽  
Geometric Relation ◽  
Reflectarray Antenna ◽  
Parabolic Reflectors ◽  
Reflecting Surface ◽  
Continuous Metal

Cylindrical parabolic reflectors have been widely used in those applications requiring high gain antennas. Their design is dictated by the geometric relation of the parabola, which relate the feed location, f, to the radiating aperture, D. In this work, the use of reflectarrays is proposed to increase D without changing the feed location. In the proposed approach, the reflecting surface is loaded with dielectric panels where the phase of the reflected field is controlled using continuous metal strips of variable widths. This solution is enabled by the cylindrical symmetry and, with respect to rectangular patches or to other discrete antennas, it provides increased gain. The proposed concept has been evaluated by designing a Ka-band antenna operating in the Rx SatCom band (19–21 GHz). A prototype has been designed and the results compared with the ones of a parabolic cylindrical reflector using the same feed architecture. Simulated results have shown how this type of antenna can provide higher gain in comparison to the parabolic counterpart, reaching a radiation efficiency of 65%.

scholarly journals Feasibility evaluations of three-dimensional-printed high-gain reflectarray antenna for W-band applications

2018 ◽  
Vol 7 (6) ◽  
pp. 230-235 ◽  
Author(s):  
Shunichi Futatsumori ◽  
Kazuyuki Morioka ◽  
Akiko Kohmura ◽  
Nobuhiro Sakamoto ◽  
Tomio Soga ◽  
...  
Keyword(s):  
Three Dimensional ◽  
High Gain ◽  
W Band ◽  
Reflectarray Antenna
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