Patent ID: 6876279
Filing Date: 2005-04-05
Classification: H01P,H01Q,H05K

Abstract:
1. A coplanar line comprising: a first rectangular slab of a horizontally stacked multi-layered stack of rectangular slabs of dielectric material, said first rectangular slab comprising a first side, a second side and two edges, said first rectangular slab having a first dielectric constant; a second rectangular slab of said horizontally stacked multi-layered stack of rectangular slabs of dielectric material; said second rectangular slab having a second dielectric constant less than 30, the second dielectric constant less than the first dielectric constant; a first electrode adjacent to said first side of said first rectangular slab of dielectric material and a second electrode adjacent to said second side of said first rectangular slab of dielectric material, said first electrode and said second electrode for applying a controllable voltage across said first rectangular slab of dielectric material thereby controlling the first dielectric constant of said first rectangular slab of dielectric material said second rectangular slab comprising a first side, a second side and two edges; a center strip positioned with a side of said center strip perpendicular to said first side of each of said first and second rectangular slabs of dielectric material; and a first ground plane positioned with a side of said first ground plane perpendicular to said first side of each of said first and second rectangular slabs of dielectric material; and a second ground plane positioned with a side of said second ground plane perpendicular to said first side of each of the first and second rectangular slabs of dielectric material, wherein said center strip is positioned between said first ground plane and said second ground plane.