Patent ID: 9620867
Date: 2017-04-11
CPC Classifications: H01Q

Claim:
1. An antenna apparatus consisting essentially of: a first antenna on a first dielectric substrate and configured to include: a second antenna on a second dielectric substrate and configured to include: a third antenna on a third dielectric substrate and configured to include: a fourth antenna on a fourth dielectric substrate and configured to include: wherein the second linear portion extends from the open end of the first radiating antenna element, and each of the first grounding antenna element, the first feeding antenna element, and the second linear portion are spaced from and parallel to each other, and perpendicular to the first linear portion, wherein the fourth linear portion extends from the open end of the second radiating antenna element, and each of the second grounding antenna element, the second feeding antenna element, and the fourth linear portion are spaced from and parallel to each other, and perpendicular to the third linear portion, wherein the sixth linear portion extends from the open end of the third radiating antenna element, and each of the third grounding antenna element, the third feeding antenna element, and the sixth linear portion are spaced from and parallel to each other, and perpendicular to the fifth linear portion, wherein the eighth linear portion extends from the open end of the fourth radiating antenna element, and each of the fourth grounding antenna element, the fourth feeding antenna element, and the eighth linear portion are spaced from and parallel to each other, and perpendicular to the seventh linear portion, wherein the first dielectric substrate is parallel to the first edge portion, wherein the second dielectric substrate is parallel to the second edge portion, wherein the third dielectric substrate is parallel to the second edge portion, wherein the fourth dielectric substrate is parallel to the third edge portion, wherein the first and fourth antennas are provided to be symmetrical with respect to a predetermined symmetry line on the grounding conductor, wherein the second and third antennas are arranged to be symmetrical with respect to the predetermined symmetry line so that the second and third feeding points are separated apart by a predetermined distance, and wherein the first to fourth antennas each have a planar shape, and lie in planes parallel to a plane of the grounding conductor.