| 摘要 |
A multi-band artificial magnetic conductor, AMC (500), is described in an electrically small antenna for use in handheld wireless devices and base station antenna applications. The multi-band AMC (500) contains a ground plane (502), two or more frequency selected surfaces FSS (506, 510) having periodic conductive patches (512) disposed on opposing surfaces and a dielectric layer (504) sandwiched between the surfaces, and dielectric layers (514, 516, 508) between the FSS layers (506, 510) and between the lower FSS layer (506) and the ground plane (502). Various parameters of the dual band AMC are chosen such that the AMC has non-harmonically related resonant frequencies within two or more different frequency bands.
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