A miniaturized design of Vicsek snowflake-box fractal microstrip patch antenna using defective ground structure for wireless applications

In this paper, miniaturization of fractal geometry with defected ground structure (DGC) concept has been experimentally verified at S-band (2–4) GHz. The design starts with a self-symmetry structure using conventional Vicsek snowflake-box fractal antenna. The same has been used in third iteration to...

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Bibliographic Details
Published inInternational journal of microwave and wireless technologies Vol. 15; no. 1; pp. 112 - 119
Main Authors Kattimani, Bharamappa, Patil, Rajendra R
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.02.2023
Subjects
Antenna Design, Modelling and Measurements
Antennas
Bandwidths
Communications systems
Design
Design defects
Fractal geometry
Fractals
Ground plane
Literature reviews
Microstrip antennas
Miniaturization
Patch antennas
Radiation
Simulation
Snowflakes
Substrates
Unit cell
Wireless communications
fractal microstrip patch antenna
snowflake-box fractal
size reduction
defected ground structure
return loss
Bandwidth
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Summary:In this paper, miniaturization of fractal geometry with defected ground structure (DGC) concept has been experimentally verified at S-band (2–4) GHz. The design starts with a self-symmetry structure using conventional Vicsek snowflake-box fractal antenna. The same has been used in third iteration to achieve miniaturization. This proposed microstrip patch antenna (MPA) is resonating at 2.12 GHz with acceptable gain and broadside radiation. The miniaturization of about 87.26% when compared to conventional fractal MPA is achieved. The fractal unit cell is optimized for miniaturization and bandwidth by carrying out parametric study and applying the DGS shapes like rectangular and U-shaped slot etched in the ground plane of Vicsek snowflake-box fractal microstrip antenna. A fractal microstrip antenna is designed for wireless applications at 3.95 GHz. The fractal microstrip antenna is simulated using HFSS-V15 simulator. It is observed that the maximum size reduction of 87.26% is achieved in the third iteration of the Vicsek snowflake-box fractal radiating patch. The proposed fractal patch antenna is designed and fabricated using epoxy substrate of FR-4 with dielectric constant of 4.4 and thickness of 1.6 mm. The simulated results are compared with the measured results.
ISSN:1759-0787
1759-0795
DOI:10.1017/S1759078722000083