The hybrid integrated planar/NRD-guide technology: a new concept for low-cost application of microwave and millimeter-wave circuits

A novel hybrid integrated planar/NRD-guide architecture is proposed. This technology offers a unique feature of exploiting inherent advantages of planar structures and NRD waveguide for low-cost wireless applications. Experimental results show that the hybrid technology promises to be useful in the design of future microwave and millimeter-wave circuits and systems.