| 摘要 |
<p>An electronically reconfigurale artificial magnetic conductor (RAMC) includes a frequency selective surface (FSS) having an effective sheet capacitance which is variable to control resonant frequency of the RAMC(1600). In one embodiment, the RAMC (1600) further includes a conductive backplane structure and a spacer layer (1604) separating the conductive backplane structure and the FSS(1602). The spacer layer (1604) includes conductive vias (1608) extending between the conductive backplane structure and the FSS (1602), and voltage variable capacitive circuit elements coupled with the FSS (1602) and responsive to bias voltages applied on one or more bias signal lines routed through the conductive backplane structure and the conductive vias (1608). In another embodiment, the RAMC (1600) includes a FSS (1602) and including a periodic pattern of bias node patches alternating with ground node patches, the ground node patches being in electrical contact with respective vias of the plurality of vias (1608), and components between selected bias node patches and ground node patches, the components having a capacitance which is variable in response to a bias voltage. A network of bias resistors between adjacent bias node patches provides the tuning voltage.</p> |
