Patent ID: 6777771
Filing Date: 2004-08-17
Classification: H01Q,Y10S

Abstract:
A high-frequency device comprising:a substrate made of a dielectric substance; a plurality of waveguides for carrying high-frequency signals formed on the substrate; plural switches formed on the substrate and having movable parts, each switch for switching into service an associated one of said plural waveguides; a structure disposed on the substrate and having a space above the area where the switch is formed; at least one spacer for forming the space in the structure; a coupling layer made of a conductive material, formed on the structure, and having coupling means for coupling high-frequency signals on a predetermined area of the waveguides; a separating layer made of a dielectric material and formed on the coupling layer; high-frequency parts formed on the separating layer and in which the high-frequency signals are coupled between them and the waveguides via the coupling means; and control means for controlling the operation of the plural switches, wherein the spacer is made of a dielectric substance and is arranged at least at the part of the coupling means.