Vivaldi antenna arrays for wide bandwidth and electronic scanning

2007 ◽  
Author(s):  
D.H. Schaubert ◽  
S. Kasturi ◽  
A.O. Boryssenko ◽  
W.M. Elsallal
Keyword(s):  
Antenna Arrays ◽  
Wide Bandwidth ◽  
Vivaldi Antenna

scholarly journals ULTRA WIDE BANDWIDTH HIGH GAIN VIVALDI ANTENNA FOR WIRELESS COMMUNICATIONS

2017 ◽  
Vol 69 ◽  
pp. 105-111 ◽  
Author(s):  
Dalia Mohammed Nasha Elsheakh ◽  
Nermeen A. Eltresy ◽  
Esmat Abdallah Abdel Fattah
Keyword(s):  
Wireless Communications ◽  
High Gain ◽  
Wide Bandwidth ◽  
Vivaldi Antenna

BANDWIDTH ENHANCEMENT OF VIVALDI ANTENNA USING TRIANGULAR SHAPED SLOTS

2016 ◽  
Vol 78 (6-3) ◽  
Author(s):  
Wan Nur Aqilah Wan Ahmad Khairuddin ◽  
Mohd Azlishah Othman ◽  
Muhammad Syafiq Noor Azizi ◽  
Mazri Yaakob ◽  
Mohamad Hafize Ramli
Keyword(s):  
Computer Simulation ◽  
Resonant Frequency ◽  
Return Loss ◽  
High Gain ◽  
Simulation Software ◽  
Simulation Technology ◽  
Wide Bandwidth ◽  
Bandwidth Enhancement ◽  
Measurement Result ◽  
Vivaldi Antenna

This paper discusses about a bandwidth enhancement of Vivaldi antenna loaded using triangular shaped. Firstly, a normal Vivaldi antenna using FR-4 substrate had been designed. Then, the triangular shaped slots had been added at the upper layer of the antenna. It shows the better improvement in return loss, gain, directivity and bandwidth operated at frequency of 10 GHz after the addition of the triangular shaped slot. The advantages of a Vivaldi antenna such as simplicity, wide bandwidth, and high gain at microwave.The return loss of this Vivladiantenna with triangular slot is – 18.495 dB at resonant frequency of 10 GHz while for Vivaldi antenna is - 17.818 dB at 10 GHz for measurement result. This proposed antenna had been designed and simulated using Computer Simulation Technology (CST) simulation software.

scholarly journals Ladder Arrangement Method for Stealth Design of Vivaldi Antenna Array

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
XiaoXiang He ◽  
SaiSai Huang ◽  
Teng Chen ◽  
Yang Yang
Keyword(s):  
Antenna Array ◽  
Antenna Arrays ◽  
Design Method ◽  
Radiation Patterns ◽  
X Band ◽  
S Parameters ◽  
Vivaldi Antenna ◽  
Element Array ◽  
Vivaldi Antennas ◽  
Radiation Direction

A novel stealth design method for X-band Vivaldi antenna arrays is proposed in this paper by ladder arrangement along radiation direction. Two-element array, eight-element array, and 3 × 7-element array are investigated in this paper. S parameters, RCSs, and radiation patterns are studied, respectively. According to the ladder arrangement of Vivaldi antennas presented, 16.3 dBsm maximal RCS reduction is achieved with satisfied radiation performance. As simulated and measured, results demonstrate that the effectiveness of the presented low RCS design method is validated.

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