Bi-Quad and Four-Quad WLAN Antennas with Magnetic Reflector

Conference: GeMiC 2014 - German Microwave Conference
03/10/2014 - 03/12/2014 at Aachen, Germany

Proceedings: ITG-Fb. 246: GeMiC 2014

Pages: 4Language: englishTyp: PDF

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Geiger, Martin; Menzel, Wolfgang (Institute of Microwave Techniques, University of Ulm, 89069 Ulm, Germany)

The gain of wire antennas can be increased by metal reflectors; such antennas, however, are no longer compact in size due to the required quarter-wave distance. As a way out of this problem, this contribution reports the integration of planar wire antennas with a synthesized planar magnetic reflector consisting of periodic mushroom-like structures. Sample antennas in the form of a bi- and a four-quad antenna with these reflectors have been designed for the 2.45 GHz frequency range; simulation and measurements are demonstrated for both antennas without and with integrated magnetic reflectors.