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A broadband microstrip antenna fed by a coplanar waveguide with dogbone slot

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2 Author(s)
Suzuki, A. ; Fac. of Eng., Saitama Univ., Urawa, Japan ; Haneishi, M.

It is well known that a stacked microstrip antenna enables the construction of a broadband planar antenna. A coplanar waveguide (CPW) is also used as an efficient feeding system for a microstrip antenna (MSA), since it enables the realization of series and shunt connections of active devices without through-holes. For this reason, a stacked microstrip antenna fed by a coplanar waveguide with dogbone slot (stacked CPW-MSA) is proposed, and its design technique and radiation properties are presented. Various experiments were carried out in the C-band to estimate the performance of the antenna. A broadband bandwidth of 21% (VSWR /spl ges/ 2.0) was achieved using the antenna. The simulated results obtained from the IE3D simulator agreed well with the experimental results. Therefore, this type of stacked CPW-MSA is considered to be an effective model for a broadband planar antenna.

Published in:

Antennas and Propagation Society International Symposium, 2001. IEEE  (Volume:3 )

Date of Conference:

8-13 July 2001