Planar Metamaterial Transverse Equivalent Network and Its Application to Low-Profile Antenna Designs

Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany

Tagungsband: EuCAP 2009

Seiten: 5Sprache: EnglischTyp: PDF

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Vallecchi, A. (Department of Electronics and Telecommunications, University of Florence, 50100 Florence, Italy)
Albani, M. (Department of Information Engineering, University of Siena, 53100 Siena, Italy)
Capolino, F. (Department of Electrical Engineering and Computer Science, University of California, Irvine, CA 92697-2625, USA)

We present a lumped circuit description of a novel metamaterial layer made of arrayed pairs of tightly coupled conductors (dogbones or Jerusalem crosses). This lumped element network is synthesized to exhibit the same frequency response of the metamaterial layer when inserted in the plane-wave equivalent transmission line. The metamaterial and its transverse equivalent network (TEN) model is then applied to the design of a high impedance surface for low profile dipoles and a partially reflective superstrate for highly directive Fabry-Perot cavity antennas. Numerical results illustrating the radiation properties of such antennas are provided.