Patent ID: 9705195
Date: 2017-07-11
CPC Classifications: H01Q

Claim:
1. An antenna device comprising: a substrate that has a through hole, the through hole penetrating the substrate; a first grounded conductor that is formed in a first layer of the substrate and that has a gap, the gap being positioned between the first grounded conductor and one end of the through hole; a second grounded conductor that is formed in a second layer of the substrate; a plurality of radiating elements that are formed on the substrate and that transmit or receive linearly-polarized waves; and a feeder line that is formed between the first layer and the second layer, is electrically continuous with the through hole, and feeds electrical power to the radiating elements, wherein the feeder line includes a straight line that is formed between the first layer and the second layer in an area of projection of the gap in a thickness direction of the substrate and that is formed to be substantially parallel to a plane of polarization of the linearly-polarized waves.