US 12,261,367 B2
Antenna unit and window glass
Ryuta Sonoda, Tokyo (JP); and Masaki Horie, Tokyo (JP)
Assigned to AGC Inc., Tokyo (JP); AGC GLASS EUROPE, Louvain-la-neuve (BE); AGC FLAT GLASS NORTH AMERICA, INC., Alpharetta, GA (US); and AGC Vidros do Brasil Ltda., Sao Paulo (BR)
Filed by AGC Inc., Tokyo (JP); AGC GLASS EUROPE, Louvain-la-neuve (BE); AGC FLAT GLASS NORTH AMERICA, INC., Alpharetta, GA (US); and AGC Vidros do Brasil Ltda., Sao Paulo (BR)
Filed on Mar. 8, 2022, as Appl. No. 17/688,948.
Application 17/688,948 is a continuation of application No. PCT/JP2020/033784, filed on Sep. 7, 2020.
Claims priority of application No. 2019-169601 (JP), filed on Sep. 18, 2019.
Prior Publication US 2022/0200156 A1, Jun. 23, 2022
Int. Cl. H01Q 21/06 (2006.01); H01Q 1/12 (2006.01); H01Q 19/02 (2006.01)
CPC H01Q 21/065 (2013.01) [H01Q 1/1271 (2013.01); H01Q 19/021 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An antenna unit to be used by being installed so as to face window glass for a building, the antenna unit comprising:
a radiating element;
a phase control member situated on an exterior-side with reference to the radiating element and configured to control a phase of an electromagnetic wave radiated from the radiating element; and
a conductor situated on an interior-side with reference to the radiating element,
wherein the phase control member is a member including a dielectric, a wave directing member and a plurality of conductor portions,
wherein the plurality of conductor portions include conductor portions that are different in shape,
wherein the plurality of conductor portions include conductor portions having different lengths in a polarization direction of the radiating element,
wherein a distance between the radiating element and the wave directing member is equal to or more than (2.11×Er−1.82) mm, where Er is a relative permittivity of the dielectric, and
wherein a gain difference between a main lobe and a grating lobe is equal to or more than 3 dB.