Patch antennas with new artificial magnetic layers

Details Patch antennas with new artificial magnetic layers Patch antennas with new artificial magnetic layers

2005-04-11

arxiv.org/abs/physics/0504075v1

Physics

Classical Physics

7 pages, 3 tables, 13 figures

Scientific paper

A new type of high-impedance surfaces (HIS) has been introduced by C.R. Simovski et al. recently. In this paper, we propose to use such layers as artificial magnetic materials in the design of patch antennas. The new HIS is simulated and patch antennas partially filled by these composite layers are measured in order to test how much the antenna dimensions can be reduced. In order to experimentally investigate the frequency behavior of the material, different sizes of the patches are designed and tested with the same material layer. Also the height of the patch is changed in order to find the best possible position for minimizing the antenna size. This composite layer of an artificial magnetic material has made the antenna smaller while keeping the bandwidth characteristics of the antenna about the same. About 40% of size reduction has been achieved.

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