Patent ID: 7221320
Filing Date: 2007-05-22
Classification: G06F,H01Q

Abstract:
1. An antenna comprising: a multilayer substrate in which are laminated a first conductive plate, a first dielectric layer disposed on the first conductive plate, a conductive transmission line which is disposed on the first dielectric layer and which has an input/output terminal for an electric signal and an open terminal, a second dielectric layer disposed so as to sandwich the transmission line in cooperation with the first dielectric layer, and a second conductive plate disposed on the second dielectric layer; and a third conductive plate for covering, of all side surfaces of the multilayer substrate, a surface opposing the open terminal of the transmission line; wherein the second conductive plate has an aperture for radiating radio waves, which are generated when the electric signal is transmitted by way of the transmission line, to the outside of the multilayer substrate.