International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
DESIGN OF DUAL BAND VOLUMETRIC ANTENNA USING SIW TECHNOLOGY FOR SUB-6GHz APPLICATIONS V Durga Satish N1, Jaswanth Varma P2, Meghana D K3, Sunil K4, Sharukh S5, Ramprasad Ravula6 12345Graduate Student,6Senior Assistant Professor Department of Electronics and Communication Engineering, Sri
Vasavi Engineering College, Tadepalligudem, West Godavari, Andhra Pradesh, India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract –Dual band volumetric antenna using SIW
fabrication constraints, and substrate selection. It appears that the creation of extremely compact and integrated systems is made possible by SIW-based antennas and arrays in wireless systems [11].The Internet of Things (IoT) and Fifth Generation (5G) connectivity have been explored. Among the near-future sub-6GHz applications are smart grid, smart cities and telemedicine [12].
(Substrate Integrated Waveguide) technology is presented in this paper. The volumetric size of the antenna is60 mm× 60 mm× 1.6 mm with rectangular patch and ground plane and fed by a micro strip feed line. A rectangular slot is subtracted from the rectangular patch, design and analyzes the characteristics of the volumetric antenna with varying slot length and width using Ansys HFSS simulation tool. The presented antenna achieves dual bands (VSWR ≤2) 5.7GHz and 5.9GHz with gain of 3.41 dB and 4.96 dB at respective frequencies. The projected antenna is low cost and modeled to be used in Sub-6GHz applications.
2. SUBSTRATE INTEGRATED WAVEGUIDE Using two rows of conducting cylinders and slots implanted in a dielectric substrate to connect two parallel metal plates, SIWs are constructed to resemble integrated waveguides (Fig – 1).
Keywords: SIW Technology, Volumetric antenna and Wireless mobile communication.
1. INTRODUCTION An antenna is the interface between electric currents flowing through metal conductors and radio waves propagating across space. Every radio transmitter and receiver needs to couple their electrical connection to the electromagnetic field.One example of an antenna design with dual functions is the micro strip antenna, which operates in two frequency bands. This is a result of the growing demand to improve the capabilities of wireless systems [1]. The slot patch will, however, modify the emission patterns of the antenna. Switchable slots can also be incorporated into the metal patch to create single-feed dual-band dual-polarized strip antennas [2].
L
Fig -1: Structure of SIW Antenna
The benefits of substrate integrated waveguide (SIW), including its low cost, low loss, and ease of integration with planar circuits, have been studied [3]–[8]. For integrated microwave and millimeter-wave components and antennas, the SIW has been extensively developed. The dielectric resonator becomes a highly efficient radiator, especially at higher frequencies, when SIW is used to feed it, eliminating the radiation losses of the feeding network [9]. With this method, rows of closely spaced metallic vias between two planes replicate the surrounding walls of a thin rectangular-type waveguide filled with dielectric [10].Many technological challenges arise when using SIW in arrays and antenna structures at lower frequencies. These challenges include reduced dimensions, losses, accurate production of SIW structures,
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Impact Factor value: 8.226
wef f
- Effective width
w
- Width of the cavity
L
- Length of the cavity
d
- Diameter of the metal vias
s or p
- Spacing between metal vias
t or h
- Height of the substrate
With the use of a slot antenna, multi-frequency antennas can be created with a low profile, isolation, and easy integration into other planar circuits. The diameter and the via spacing are important design factors, albeit there is a technological difference between them.
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