International Research Journal of Engineering and Technology (IRJET) Volume: 09 Issue: 11 | Nov 2022
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e-ISSN: 2395-0056 p-ISSN: 2395-0072
Design of Coplanar Vivaldi Antenna with Metamaterial and Dome Lens for Radar Applications Nurhayati Nurhayati1, Radika P.B Ananda2, Sari Edi Cahyaningrum3, Fitri Adi Iskandarianto4 1,2,3Department
of Electrical Engineering, Universitas Negeri Surabaya, Indonesia Engineering Department, Institut Teknologi Sepuluh Nopember, Indonesia ---------------------------------------------------------------------***--------------------------------------------------------------------4Instrumentation
The antenna design is a patch antenna with a wide bandwidth invented by Gibson[5], the antenna is one of the designs that have high flexibility in optimization and modification efforts. The antenna has a tapered antenna slot called a tapered slot antenna (TSA).
Abstract - Vivaldi antenna applications are widely used
in Ground Penetrating Radar technology, Medical Imaging such as detecting brain tumors and breast cancer. In this study, a comparison of the return loss and gain of three modifications of the coplanar antenna design is carried out, namely SCVA (Standard Coplanar Antenna), CCVA (Corrugated Coplanar Antenna), CCVAM (Corrugated Coplanar Antenna with Metamaterial) which works in the frequency range. 0.5GHz – 5GHz. By comparing the three designs, it is obtained from the simulation results that the modification of CCVA (Corrugated Coplanar Vivaldi Antenna) and CCVAM (Corrugated Coplanar Vivaldi Antenna with Metamaterial) provides better performance than the SCVA design (Standard Coplanar Vivaldi Antenna) both in terms of Gain and Return Parameter loss. Although using the size and material of the FR-4 substrate with dimensions of 350mm x 400mm where in the Gain parameter the CCVAM (Corrugated Coplanar Vivaldi Antenna with Metamaterial) design has an advantage with a value of 7 dB to 6.4 dB in the frequency range 1 GHz 2.7 GHz, but at the final frequency The CCVA (Corrugated Coplanar Vivaldi Antenna) design range has a value exceeding 2 designs with a value of 6.6 dB to 4.9 dB in the 2.7-5 GHz frequency range. Then for the return loss parameters, the three antennas have values below -10db but the lowest return loss values are generated from the CCVAM (Corrugated Coplanar Vivaldi Antenna with Metamaterial) design. Key Words: metamaterial
Vivaldi
antenna,
Bandwidth,
This radar technology is used to monitor and detect objects that are difficult to see by the human eye. The radar itself is a technology that utilizes electromagnetic waves emitted by a transmitter or antenna[6]. Many studies discuss the application of radar using antennas and their various modifications to become a transmission medium and also a receiving medium[7][8][9]. The focus of this article is to produce an antenna design SCVA (Standard Coplanar Antenna), CCVA (Corrugated Coplanar Antenna), CCVAM (Corrugated Coplanar Antenna with Metamaterial) using FR-4 material on the substrate with a size of 350mm x 400mm for all design and copper on the patch and metamaterial to compare the return loss and gain performance of the three antenna designs. Which works in the S and C band frequency range and is intended for the use of radar technology.
2. DESIGN COPLANAR VIVALDI ANTENNA In this study, we designed 3 models of Coplanar antennas, of which 3 variations used copper material on the patch and also FR-4 on the antenna substrate which can be seen in Fig- 1.
gain,
Table -1: Dimensions of 3 Antenna designs
1.INTRODUCTION
Symbol
There are so many variations of designs and modifications of antennas that have various applications in realizing telecommunications technology. The use of electromagnetic waves generated by the antenna is not only used for long-distance communication, moreover, along with the development of antenna technology, it is developed for radar applications in aviation and also the military, GPR (Ground Penetrating Radar), and medical imaging[1][2][3]. In previous studies, GPR used a working frequency range between 500 MHz to 1 GHz[4].
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A B C D E F G H
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Dimension (mm)
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Dimension (mm)
350 400 190 4 1 100 17.2 200
I D1 J K L M N O
550 350 31 17 5 3 1 10
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