Title :
A broadband microstrip antenna fed by a coplanar waveguide with dogbone slot
Author :
Suzuki, A. ; Haneishi, M.
Author_Institution :
Fac. of Eng., Saitama Univ., Urawa, Japan
Abstract :
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.
Keywords :
antenna feeds; antenna radiation patterns; antenna testing; coplanar waveguides; microstrip antenna arrays; microwave antenna arrays; planar antenna arrays; C-band; IE3D simulator; VSWR; active devices; antenna performance; broadband bandwidth; broadband microstrip antenna; broadband planar antenna; coplanar waveguide feeder; dogbone slot; measured radiation patterns; radiation properties; series connections; shunt connections; simulated results; stacked CPW-MSA; stacked microstrip antenna; Antenna feeds; Assembly; Bandwidth; Broadband antennas; Coplanar waveguides; Microstrip antennas; Planar arrays; Rectangular waveguides; Slot antennas; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.960142
