Patent ID: 8552815
Filing Date: 2013-10-08
Classification: H01P,Y10T

Abstract:
1. A high-frequency line structure, comprising: a multi-layered resin substrate in which a plurality of insulating layers of a resin are laminated; a high-frequency-signal input part including an input pad over a first surface of the resin substrate, a supply pad in the resin substrate to face the input pad, and a first via in a portion of the resin substrate located between the input pad and the supply pad and connected to the input pad and the supply pad; a high-frequency-signal output part including an output pad over the first surface of the resin substrate, a reception pad in the resin substrate to face the output pad, and a second via in a portion of the resin substrate located between the output pad and the reception pad, the second via being connected to the output pad and the reception pad; a first metal layer on the first surface of the resin substrate to encircle the input pad and the output pad, the first metal layer electrically insulated from the high-frequency-signal input part and the high-frequency-signal output part; a second metal layer on a second surface of the resin substrate opposite to the first surface of the resin substrate; and a plurality of penetration vias arranged to penetrate the resin substrate and encircle the high-frequency-signal input part and the high-frequency-signal output part, and each penetration via connected to the first and second metal layers, wherein a microstrip line is formed on a top surface of the high-frequency line structure, the microstrip line comprising an insulation layer to cover the top surface of the high-frequency line structure, a first wiring pattern formed on the insulation layer and connected to the input pad, and a second wiring pattern formed on the insulation layer and connected to the output pad; the high-frequency-signal input part further includes: a first pad arranged on the first surface of the resin substrate and under the input pad and connected to one end of the first via; a second pad arranged in the resin substrate and over the supply pad to face the first pad, and connected to the other end of the first via; and a first conductor arranged in a portion of the resin substrate between the first pad and the second pad to face the first and second pads, connected to the first via, and provided for impedance matching; and the high-frequency-signal output part further includes: a third pad arranged on the first surface of the resin substrate and under the output pad and connected to one end of the second via; a fourth pad arranged in the resin substrate and over the reception pad to face the third pad, and connected to the other end of the second via; and a second conductor arranged in a portion of the resin substrate between the third pad and the fourth pad to face the third and fourth pads, connected to the second via, and provided for impedance matching.