US 12,249,768 B2
Antenna device and display antenna
Ryota Nihei, Tokyo (JP); Junichi Funada, Tokyo (JP); Kenji Wakafuji, Tokyo (JP); Kazuyuki Hayashi, Tokyo (JP); Kohei Yoshida, Tokyo (JP); Shingo Watanabe, Tokyo (JP); Kazushi Sugyo, Tokyo (JP); Masakazu Ono, Tokyo (JP); and Fujio Okumura, Kanagawa (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Nov. 22, 2023, as Appl. No. 18/517,462.
Claims priority of application No. 2022-191415 (JP), filed on Nov. 30, 2022; and application No. 2023-072390 (JP), filed on Apr. 26, 2023.
Prior Publication US 2024/0178576 A1, May 30, 2024
Int. Cl. G06F 3/0488 (2022.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); H01Q 1/22 (2006.01); H01Q 21/06 (2006.01)
CPC H01Q 21/065 (2013.01) [G06F 3/0416 (2013.01); G06F 3/0446 (2019.05); G06F 3/0488 (2013.01); H01Q 1/22 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An antenna device comprising:
an antenna array including a plurality of patch antennas arrayed in a diamond-shaped pattern, wherein each of the plurality of patch antennas has a square shape;
a first switch group including a first switch disposed on a wiring line connecting vertices of two first patch antennas of the plurality of patch antennas, wherein the two first patch antennas are adjacent to one another;
a second switch group including a second switch disposed on a wiring line connecting a first given antenna assembly of a plurality of antennas assemblies with a signal source, the first given antenna assembly formed and constituted by at least four second patch antennas of the plurality of the patch antennas with a signal source, wherein the at least four second patch antennas are adjacent to one another, and wherein the wiring line is connected to at least one of the four second patch antennas; and
a controller including a memory storing instructions, and a processor that is configured to execute the instructions to:
control opening and closing of a plurality of switches of the first switch group to configure the plurality of patch antennas in such a way that the first given antenna assembly has a size that matches a frequency band of a radio wave to be transmitted and received, wherein the plurality of switches of the first switch group includes the first switch;
configure a touch panel in which one or more of second given antenna assemblies of the plurality of antenna assemblies are functioning as a touch sensor and is arrayed in a row direction and a column direction, by closing the first switch connected to the first patch antenna at a position of a vertex of the first given antenna assembly functioning as the touch sensor in a state where the second switch connected to the at least four second patch antennas constituting the first given antenna assembly functioning is opened; and
detect a contact position on the touch panel according to a change in capacitance at an intersection of a row formed by the plurality of the antenna assemblies arrayed in the row direction and a column formed by the plurality of the antenna assemblies arrayed in the column direction.