US 12,080,962 B2
Antenna apparatus and wireless communication apparatus
Yohei Koga, Yamato (JP); Tabito Tonooka, Yamato (JP); Satoshi Sakita, Yamato (JP); Yasumitsu Ban, Yamato (JP); Manabu Yoshikawa, Yamato (JP); and Takahiro Shinojima, Yamato (JP)
Assigned to FCNT LLC, Yamato (JP)
Filed by FCNT LIMITED, Yamato (JP)
Filed on Apr. 12, 2022, as Appl. No. 17/718,480.
Application 17/718,480 is a continuation of application No. PCT/JP2019/040504, filed on Oct. 15, 2019.
Prior Publication US 2022/0239006 A1, Jul. 28, 2022
Int. Cl. H01Q 9/42 (2006.01); H01Q 1/24 (2006.01); H01Q 9/04 (2006.01)
CPC H01Q 9/42 (2013.01) [H01Q 1/243 (2013.01); H01Q 9/0414 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An antenna apparatus, comprising:
a ground substrate;
a feeding point provided on the ground substrate;
a first conductor device of which one end is electrically connected to the feeding point and which has a plate shape being parallel to the ground substrate;
a second conductor device which is arranged between the first conductor device and the ground substrate, of which one end is electrically connected to the ground substrate, and which has a plate shape being parallel to the ground substrate; and
a connecting portion which electrically connects another end of the first conductor device and another end of the second conductor device to each other, wherein
a width of the first conductor device is wider than a width of the second conductor device, and
lengths of the first conductor device and the second conductor device are ½ of a wavelength of a radio wave for operating the antenna apparatus, wherein
a grounded metal member is further provided at a distance of 1/50 or less of the wavelength of the radio wave for operating the antenna apparatus from at least one of the one end of the first conductor device and the connecting portion.