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Printed-circuit antennas for ultra-wideband monitoring applications

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2 Author(s)
Mokhtaari, M. ; Dept. of Electr. & Comput. Eng., Univ. of Victoria, Victoria, BC, Canada ; Bornemann, J.

Two new printed-circuit antennas for ultra-wideband (UWB) monitoring applications are introduced. Both microstrip and coplanar waveguide antennas operate between 3 GHz and 30 GHz with a return loss of 10 dB. The vertically polarized omnidirectional radiation characteristics in the lower frequency band change to a more directional pattern at higher frequencies. The cross-polar field component increases with frequency and gives rise to possible dual-polarized applications for the microstrip antenna. Overall, the coplanar antenna shows slightly better performance. Amplitude and group-delay responses are demonstrated over the entire 3-30 GHz band, and radiation patterns at selected frequencies are shown.

Published in:

Electromagnetic Compatibility (APEMC), 2012 Asia-Pacific Symposium on

Date of Conference:

21-24 May 2012