| abstract |
A new class of antennas and microwave components are introduced. In this approach a high-permittivity dielectric film is applied (i.e. printed) on a dielectric substrate, which may be grounded. By changing the shape of the high-permittivity film, different microwave devices (e.g. waveguides, filters, couplers, and antennas) are produced. By changing the size and permittivity of the high-permittivity film and dielectric substrate, these elements are designed at different frequencies for different applications. Highly-efficient microwave devices can result due to the absence of surface currents. |