Patent ID: 7262673
Filing Date: 2007-08-28
Classification: H01P

Abstract:
1. A method of manufacturing a transmission line of strip type intended for transmitting electric magnetic waves within a predetermined wavelength range, the method comprising the steps: applying a first layer of a material having a first dielectric constant to a substrate, thereafter patterning the first layer to produce portions remaining of the first layer and therebetween recesses or grooves in the first layer, the patterning made so that the widths of the remaining portions and of the recesses or grooves taken in a first direction are significantly smaller than wavelengths within the predetermined wavelength range, thereafter applying a second layer of a material having a second dielectric constant on top of the first layer to fill the recesses or grooves to produce a substantially flat surface, and applying, along said first direction, a stripshaped electric conductor on top of the substantially flat surface.