Developing hard waveguides based on gap waveguide concept

Paper i proceeding, 2011

The use of periodic elements loading rectangular waveguides to miniaturize them allowing the propagation of new (backward) modes has been proposed several years ago. However all the proposed solutions have a strong limitation in terms of bandwidth and impedance matching. We propose for the first time a wide band miniaturized waveguide based on the use of artificial surfaces and the gap waveguide philosophy