CPC H01Q 9/045 (2013.01) [H01Q 1/14 (2013.01); H01Q 21/065 (2013.01)] | 11 Claims |
1. An antenna module, comprising:
a radiation electrode having a flat plate shape and being configured to receive a first radio frequency signal at a first feed point and a second radio frequency signal at a second feed point;
a first feed wire configured to supply the first radio frequency signal to the first feed point;
a second feed wire that branches from the first feed wire and that is configured to supply the second radio frequency signal to the second feed point,
a dielectric substrate having a multilayer structure and comprising the radiation electrode, the first feed wire, and the second feed wire, and
a ground electrode in the dielectric substrate,
wherein the second feed wire is in a layer between the radiation electrode and the ground electrode, or opposite the radiation electrode across the ground electrode,
wherein the second feed wire comprises a first path and a second path that have lengths equal to each other and that are connected in parallel between the first feed point and the second feed point, and
wherein as seen in a plan view of the antenna module, the first path and the second path are mutually line-symmetric with respect to a straight line connecting the first feed point to the second feed point.
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