A Wide-Band Single-Layer Aperture-Coupled Microstrip Antenna
Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany
Tagungsband: EuCAP 2009
Seiten: 4Sprache: EnglischTyp: PDF
Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Autoren:
Herscovici, Naftali; Tomasic, Boris (Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, Bedford MA, USA)
Ginn, James (University of Central Florida, Orlando FL, USA)
Donisi, Tony (Ansoft Corporation, Pittsburgh, PA, USA)
Inhalt:
In this paper a new type of a wideband aperturecoupled microstrip antenna is presented. The antenna is modelled as a 2.5D structure, and is optimized using a Genetic Algorithm (GA). In addition to the radiator shape, the feed and the coupling slot dimensions are also included in the optimization process. The impedance bandwidth corresponding to VSWR<2:1 achieved by this optimization for the microstrip fed case is slightly larger than 38% and slightly above 20% for the stripline fed case. In order to achieve this bandwidth with traditional aperture-coupled patch, a multilayer patch structure is required. The concept proposed here, considerably reduces the complexity of the fabrication process.