A compact triband antipodal Vivaldi antenna with frequency selective surface inspired director for IoT/WLAN applications

Autor: Merih Palandoken, Peyman Mahouti, Mehmet A. Belen, Ilhan O. Evranos, Filiz Güneş
Přispěvatelé: Mühendislik ve Doğa Bilimleri Fakültesi -- Elektrik-Elektronik Mühendisliği Bölümü, Güneş, Filiz, Evranos, İlhan Ömer, Belen, Mehmet Ali, Mahouti, Peyman, Palandöken, Merih
Rok vydání: 2021
Předmět:
Computer science
Electric impedance
Frequency selective surface (FSS)
Wireless local area networks (WLAN)
Antipodal point
02 engineering and technology
law.invention
Engineering
0203 mechanical engineering
Side lobe
law
0202 electrical engineering
electronic engineering
information engineering
Antenna arrays
Impedance bandwidths
Structural geometry
Operating frequency bands
Electronic circuit
Differential evolutionary
020302 automobile design & engineering
Frequency selective surfaces
3D printers
LTE
Wideband
Telecommunications
Substrate Integrated Waveguides
Antenna (radio)
Slotted line
Information Systems
Optimization
Internet of things
Computer Networks and Communications
Acoustics
Evolutionary algorithms
Radio spectrum
Microwave antennas
Vivaldi antenna
Heuristic algorithms
Electrical and Electronic Engineering
GSM
Ultra-Wideband (UWB)
ISM
Antenna lobes
Frequency selective surface
Antipodal Vivaldi antenna
Honey-bee mating optimization
020206 networking & telecommunications
Slot Antennas
Computer Science
Meta heuristic algorithm
Microwave circuits
Microwave
Zdroj: Wireless Networks. 27:3195-3205
ISSN: 1572-8196
1022-0038
DOI: 10.1007/s11276-021-02656-5
Popis: In this paper, an antipodal triband Vivaldi antenna operating in 2.4/5.2/5.8 GHz bands has been presented for WLAN/IoT applications. The proposed antipodal Vivaldi antenna has meander line shaped slotted lines, which are structured on the edges of exponentially tapered antipodal metallic branches and frequency selective surface (FSS) inspired director in the front part of the exponentially tapered patches on both top and bottom sides of the substrate. The meander line shaped slots on the tapered antipodal metallic branches have been utilized to improve the impedance bandwidth whereas FSS inspired director has RF performance effect on the enhancement of the gain and suppression of the side lobe levels in WLAN/IoT frequency bands. This FSS inspired director has the structural geometries in the form of meta-material based FSS consisting of an array of the sub-wavelength rectangular patches. These FSS structures are designed by global and local optimization processes using fast and efficient meta-heuristic algorithms, honey bee mating optimization (HBMO) and Differential Evolutionary. The optimized antenna model has been prototyped with the use of 3D printed substrate material based on PLA Filament-Polar White RBX-PLA-WH002 having predetermined filling form factor to obtain the desired substrate permittivity in the operating frequency bands. The simulated results of the proposed antenna design are in good agreement with the measured results. Furthermore the experimental results verify that the propotyped antipodal Vivaldi antenna has better RF performance as compared with the counterpart alternative designs in the literature. It can be concluded that the proposed antipodal Vivaldi antenna is a promising candidate for WLAN/IoT applications with high RF performance and easy integration into the microwave circuits.
Databáze: OpenAIRE
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