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A compact uniplanar EBG structure and its application in band-notched UWB filter

  • Lalithendra Kurra (a1), Mahesh P Abegaonkar (a1), Ananjan Basu (a1) and Shiban K Koul (a1)

Abstract

In this paper, a new way of obtaining a band rejection in a ultra wideband (UWB) filter using a uniplanar Electromagnetic bandgap (EBG) structure is reported. The EBG structure has a bandgap centered at 6.69 GHz which is almost 38% lower compared with the conventional uniplanar EBG of same dimensions. A one-dimensional EBG structure coupled with a microstrip line provides a narrow bandgap, which is used in obtaining a notch in the UWB filter. Single notch UWB filters with variations in the placement of EBG are fabricated producing a notch centered at 5.19 GHz (wireless local area network (WLAN)). A dual notch (5.16 and 8.24 GHz (satellite communication)) UWB filter is also fabricated with two different unit cell EBGs'. Switchable and tunable notch band UWB filters are proposed.

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Corresponding author

Corresponding author: Mahesh P. Abegaonkar Email: mpjosh@care.iitd.ac.in

References

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A compact uniplanar EBG structure and its application in band-notched UWB filter

  • Lalithendra Kurra (a1), Mahesh P Abegaonkar (a1), Ananjan Basu (a1) and Shiban K Koul (a1)

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