Variable capacitor and a variable inductor
AssigneeNEC Corporation
InventorKazuaki Kunihiro
Life of this patent
Estimating the term…
Abstract
A variable capacitor is formed by a multilayer circuit board having a plurality of dielectric layers; a first conductive plate, provided within the multilayer circuit board, for serving as one electrode of the variable capacitor; a second conductive plate, provided within the multilayer circuit board, for serving as the other electrode of the variable capacitor; a plurality of third conductive plates provided between the first conductive plate and the second conductive plate; and a plurality of switching means provided for grounding the third conductive plates selectively.
Claims6
A variable capacitor comprising:
- a multilayer circuit board having a plurality of dielectric layers;
- a first conductive plate, provided within said multilayer circuit board, for serving as one electrode of said variable capacitor;
- a second conductive plate, provided within said multilayer circuit board, for serving as the other electrode of said variable capacitor;
- a plurality of third conductive plates provided between said first conductive plate and said second conductive plate;
- and
- a plurality of switching means provided for grounding said third conductive plates selectively.
A variable capacitor comprising:
- a multilayer circuit board having a plurality of dielectric layers;
- a first conductive plate, provided within said multilayer circuit board, for serving as one electrode of said variable capacitor;
- a second conductive plate, provided within said multilayer circuit board, for serving as the other electrode of said variable capacitor;
- a plurality of third conductive plates provided between said first conductive plate and said second conductive plate;
- a plurality of terminals provided on an outer surface of said multilayer circuit board;
- a plurality of via holes connecting said a plurality of third conductive plates and said a plurality of terminals, respectively;
- and
- a plurality of switching means provided for grounding said third conductive plates via said terminals selectively.
A variable inductor comprising:
- a multilayer circuit board having a plurality of dielectric layers;
- a first conductive plate, provided within said multilayer circuit board, for serving as a transmission line;
- a second conductive plate, provided within said multilayer circuit board, for serving as a grand plate of said transmission line;
- a third conductive plate, provided between said first conductive plate and second conductive plate, for serving as a grand plate of said transmission line;
- and
- a plurality of switching means provided for grounding either one of said second and said third conductive plates selectively.
A variable inductor comprising:
- a multilayer circuit board having a plurality of dielectric layers;
- a first conductive plate, provided within said multilayer circuit board, for serving as a transmission line;
- a second conductive plate, provided within said multilayer circuit board, for serving as a grand plate of said transmission line;
- a third conductive plate, provided between said first conductive plate and second conductive plate, for serving as a grand plate of said transmission line;
- a terminal provided on an outer surface of said multilayer circuit board;
- and
- a via hole connecting said third conductive plate and said terminal.
Dependencies are inferred from the claim text.