Simulation of a tunable Artificial Magnetic Conductor (AMC) employing digitally tunable capacitor (DTC) is presented and compared with an AMC employing varactor diodes. The DTC is used because it has some advantages such as linearity properties and low parasitic loss. A validation experiment is presented using a transmission line analogue. All simulations and measurements results show that the DTC may provide a route to low loss reconfigurable AMC.
Simulations of a tunable artificial magnetic conductor employing digitally tunable capacitors is presented. The tuning devices are used due to the low parasitic loss and linearity properties. The surface is modeled with a wideband monopole to illustrate the potential for tunable, low profile antenna systems.Index Terms-reconfigurable antenna, high impedance surface.
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