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Disc-loaded monopole antenna array for switched beam control

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2 Author(s)
Kamarudin, M.R. ; Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, UK ; Hall, P.S.

Switched beam control is demonstrated using a disc-loaded monopole antenna on a finite ground plane with four parasitic elements. The beam direction can be switched by open circuiting one of the parasites. The array antenna gives a gain of 5.1 dBi at 2.45 GHz, which is more than three times that of a single element. The input return loss bandwidth is 24% and the radiated beam is elevated above the ground plane by about 500. The measured results show good agreement with simulations.

Published in:

Electronics Letters  (Volume:42 ,  Issue: 2 )