Research of Dumbbell Shaped DGS to Enhance The Bandwidth and Multiple Band Applications
Karunaiah Bonigala1, P.V.Sridevi2

1Karunaiah Bonigala, Research Scholor, Dept.of ECE, AU College of Engineering (A), Visakhapatnam, AP, India.
2Dr. P. V. Sridevi, Professor, Dept.of ECE, AU College of Engineering (A), Visakhapatnam, AP, India.
Manuscript received on November 22, 2019. | Revised Manuscript received on December 15, 2019. | Manuscript published on December 30, 2019. | PP: 4584-4589 | Volume-9 Issue-2, December, 2019. | Retrieval Number:  B5110129219/2019©BEIESP | DOI: 10.35940/ijeat.B5110.129219
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Abstract: A monopole microstrip rectangular patch with dumbbell shape slotted on ground for multiple band, enhance the bandwidth. The proposed antenna is fabricated on FR 4 epoxy material with electrical permittivity of 4.4 and magnetic permeability 1.The dimensions of proposed antenna are 70 x 50 x 1.6 mm3 and the dumbbell shape is slotted on ground of substrate which resonates at four different frequencies 5.9 GHz, 7 GHz, 8.7 GHz and 9.7 GHz. The proposed antenna has bandwidths of 200 MHz 300 MHz, 300 MHz, 300 MHz at four resonant frequencies The proposed antenna covers 4/8 GHz C band, 8/12 GHz X band and used in radar, satellite communications. The reflection coefficient (S11), radiation characteristics, peak gain and VSWR of designed antenna are described.
Keywords: Rectangular patch, Multi band, Dumbbell DGS.