M. Scardelletti, N. Jastram, G. Ponchak, Rhonda R. Franklin
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Characteristics of planar monopole antenna on high impedance electromagnetic surface
This paper presents for the first time measured characteristics of a planar monopole antenna placed directly on a high impedance electromagnetic surface or artificial magnetic conductor (AMC). The return loss and radiation patterns are compared between the antenna in free space, and when placed directly on a perfect electrical conductor (PEC), and on the AMC. The antenna measured in free space has a wide pass band from 3 to 10 GHz. The return loss for the antenna on the PEC is nearly all reflected back and the return loss for the antenna on the AMC has a 10 dB bandwidth from 7.5 to 9.5 GHz. The gain of the antenna in free space, on PEC and on AMC is 1, −12 and 10 dBi, respectively. This indicates that the AMC is working properly, sending all the radiation outward with little loss.
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