A sparse array antenna using 2-D pattern reconfigurable antenna

2016 ◽  
Author(s):  
Satoshi Yamaguchi ◽  
Naoyuki Yamamoto ◽  
Takashi Maruyama ◽  
Masataka Ohtsuka ◽  
Hiroaki Miyashita
Keyword(s):  
Array Antenna ◽  
Reconfigurable Antenna ◽  
Sparse Array

Ultra-Wideband Wide-Angle Scanning Sparse Array Antenna Based on LPDA

2021 ◽  
Author(s):  
Zhaoneng Jiang ◽  
Zhixin Wang ◽  
Liying Nie ◽  
Xiaoyan Zhao ◽  
Shichun Huang ◽  
...  
Keyword(s):  
Array Antenna ◽  
Ultra Wideband ◽  
Wide Angle ◽  
Sparse Array

scholarly journals Wide-Angle Scanning Phased Array Antenna using High Gain Pattern Reconfigurable Antenna Elements

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
ByungKuon Ahn ◽  
In-June Hwang ◽  
Kwang-Seok Kim ◽  
Soo-Chang Chae ◽  
Jong-Won Yu ◽  
...  
Keyword(s):  
Phased Array ◽  
High Gain ◽  
Array Antenna ◽  
Reconfigurable Antenna ◽  
Wide Angle ◽  
Phased Array Antenna ◽  
Design Guideline ◽  
Phased Array Antennas ◽  
Array Antennas ◽  
Scanning Range

AbstractThis paper presents a wide-angle scanning phased array antenna using high gain pattern reconfigurable antenna (PRA) elements. Using PRA elements is an attractive solution for wide-angle scanning phased array antennas because the scanning range can be divided into several subspaces. To achieve the desired scanning performance, some characteristics of the PRA element such as the number of switching modes, tilt angle, and maximum half-power beamwidth (HPBW) are required. We analyzed the required characteristics of the PRA element according to the target scanning range and element spacing, and presented a PRA element design guideline for phased array antennas. In accordance with the guideline, the scanning range was set as ±70° and a high gain PRA element with three reconfigurable patterns was used to compose an 8x1 array antenna with 0.9 λ0 spacing. After analyzing whether the active element patterns meet the guideline, the array antenna was fabricated and measured to demonstrate the scanning performance. The fabricated array can scan its beam from -70° to 70° by dividing the scanning range into three subspaces. It shows that even if the array antenna has large element spacing, the desired scanning performance can be obtained using the elements designed under the guideline.

Optimization of a Sparse Array Antenna for 3D Imaging in Near Range

2019 ◽  
Vol E102.C (1) ◽  
pp. 46-50
Author(s):  
Andrey LYULYAKIN ◽  
Iakov CHERNYAK ◽  
Motoyuki SATO
Keyword(s):  
3D Imaging ◽  
Array Antenna ◽  
Sparse Array

scholarly journals A Hybrid Technique Using Combinatorial Cyclic Difference Sets and Binomial Amplitude Tapering for Linear Sparse Array Antenna Design

2016 ◽  
Vol 5 (3) ◽  
pp. 73 ◽  
Author(s):  
E. Sandi ◽  
F. Y. Zulkifli ◽  
E. T. Rahardjo
Keyword(s):  
Communication Systems ◽  
Difference Sets ◽  
Array Antenna ◽  
Antenna Design ◽  
Hybrid Technique ◽  
Array Design ◽  
Sparse Array ◽  
Cyclic Difference Sets ◽  
Radar Systems ◽  
Measurement Results

Reducing system complexity and cost in synthesizing a sparse array antenna design is a challenging task for practical communication systems, such as radar systems and space communication. In this paper, a hybrid technique to synthesize a linear sparse array antenna design is described. This technique is developed using two methods. The first method is a combinatorial approach that applies cyclic difference sets (CDS) integers to significantly reduce the number of antenna elements. The approach and procedure used to apply the new CDS method to configure a linear sparse array, with significant reduction of the spatial antenna dimension, is described. The second method, applied to the array result of the first method, is amplitude tapering using a binomial array approach to reduce the sidelobes level (SLL). The simulation and measurement results of the sample sparse array design showed that the SLL was reduced in comparison to the sparse array design using only the combinatorial CDS method.

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