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1 International Journal of Electronics and Telecommunications

1 2020

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Modified Groove Coupled Compact EBG Unit Cell as Notch Filter in a UWB Antenna

Sarmah Kumaresh, Goswami Sivaranjan, Sarma Angana, Baruah Sunandan

International Journal of Electronics and Telecommunications

2020

Vol. 66, No. 2

261--266

In this paper, a conventional mushroom-type EBG unit cell is made compact by etching a C-slot at its conducting surface. Further, the C-slotted mushroom-type EBG unit cell is coupled with a microstrip line using a novel groove-coupling technique to design a notch filter. The arrangement has achieved in the reduction of the electrical size of the mushroom type EBG unit cell by 46.15% and create a stop band suppression of -12 dB. The proposed EBG is applied to notch a narrow band centered at 5.2 GHz along with an ultra-wideband antenna. The far field gain of the antenna is suppressed by -5.8 dBi along the direction of its major lobe at 5.2 GHz. The overall size of the antenna system is 19 x 27 x 1.6 mm³ which is compact. The performance of the antenna is validated from the simulation and measured results.