scholarly journals Efficient Crosspolar Optimization of Shaped-Beam Dual-Polarized Reflectarrays Using Full- Wave Analysis for the Antenna Element Characterization

2017 ◽  
Vol 65 (2) ◽  
pp. 623-635 ◽  
Author(s):  
Daniel R. Prado ◽  
Manuel Arrebola ◽  
Marcos R. Pino ◽  
Rafael Florencio ◽  
Rafael R. Boix ◽  
...  
Electronics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 744
Author(s):  
Michele Beccaria ◽  
Alessandro Niccolai ◽  
Riccardo E. Zich ◽  
Paola Pirinoli

In this work, an innovative approach for the design of a shaped-beam reflectarray (RA) is presented. It is based on the use of a novel evolutionary algorithm (EA), named Social Network Optimization (SNO), that presents good capabilities in terms of convergence and reliability, and therefore it is suitable for optimizing a complex problem such as the one of interest. The full-wave analysis of a small–medium configuration designed with the proposed approach and the experimental characterization of a prototype proved the effectiveness of the adopted method.


2011 ◽  
Vol 3 (4) ◽  
pp. 439-450 ◽  
Author(s):  
Iñigo Liberal ◽  
Diego Caratelli ◽  
Alexander Yarovoy

The design and full-wave analysis of an antenna system for ultra-wideband radio direction finding applications is presented. The elliptical dipole antenna is selected as antenna element due to its robust circuital and radiation properties. The influence of the conformal deformation on the antenna performance has been studied in details. A suitable radome is designed to enhance the antenna front-to-back radiation ratio, as well as to increase the environmental durability of the structure. The considered antennas are optimized for their adoption in two different sub-arrays covering the [250, 950] MHz and [0.9, 3.3] GHz frequency bands, respectively. A uniform circular array (UCA) with five elements is used for the array topology. The full-wave analysis of the whole array structure is carried out in order to evaluate the coupling between the antenna elements. In particular, a novel calibration technique is developed in order to compensate for the mutual coupling between the array elements, possible variations in the antenna characteristics, and the effects of the array bearing structure. The performance of the designed array in terms of direction-of-arrival estimation is thoroughly analyzed and discussed.


1990 ◽  
Vol 26 (19) ◽  
pp. 1615 ◽  
Author(s):  
G. Bartolucci ◽  
J. Piotrowski

1990 ◽  
Vol 26 (22) ◽  
pp. 1922
Author(s):  
G. Bartolocci ◽  
J. Piotrowski

Author(s):  
R. Rodriguez-Berral ◽  
G. Valerio ◽  
F. Mesa ◽  
P. Baccarelli ◽  
P. Burghignoli ◽  
...  

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