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Low-Cost Planar Omnidirectional Antenna for mm-Wave Applications

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7 Author(s)
Ranvier, S. ; Dept. of Radio Sci. & Eng., Helsinki Univ. of Technol., Helsinki ; Dudorov, S. ; Kyro, M. ; Luxey, C.
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This letter presents a planar omnidirectional antenna structure with wide beam for applications in the 60-GHz band. The antenna was designed using only one metal layer on top of a quartz substrate, which is very cost efficient. The optimal structure, of size 4.5 times 4.3 mm2, exhibits a gain of 1.4 dBi plusmn 0.5 dBi in the omnidirectional plane and a half power beam width of about 75 deg in the perpendicular plane. The bandwidth with return loss at least 10 dB covers the 57-64-GHz license-free band, which is commonly considered for very high data rate communications. The consistency of the simulated results was successfully checked with measurements.

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Antennas and Wireless Propagation Letters, IEEE  (Volume:7 )