US 12,107,333 B2
Antenna assembly equipped with a sub-wavelength structured enhancer
Yu-Chun Wang, Hsinchu County (TW); Po-Kuan Shen, Hsinchu County (TW); Sheng-Fu Lin, Hsinchu County (TW); Jenq-Yang Chang, Hsinchu County (TW); and Mao-Jen Wu, Hsinchu County (TW)
Assigned to AuthenX Inc., Hsinchu County (TW)
Filed by AuthenX Inc., Hsinchu County (TW)
Filed on Sep. 14, 2022, as Appl. No. 17/944,254.
Claims priority of provisional application 63/243,782, filed on Sep. 14, 2021.
Prior Publication US 2023/0080502 A1, Mar. 16, 2023
Int. Cl. H01Q 19/06 (2006.01); H01Q 1/48 (2006.01); H01Q 9/04 (2006.01); H01Q 21/06 (2006.01)
CPC H01Q 19/06 (2013.01) [H01Q 1/48 (2013.01); H01Q 9/0414 (2013.01); H01Q 9/045 (2013.01); H01Q 21/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An antenna assembly equipped with a sub-wavelength structured enhancer, comprising:
an antenna supporting substrate with a top surface and a bottom surface opposite to each other;
a first patch antenna disposed on the top surface of the antenna supporting substrate or disposed inside of the antenna supporting substrate;
a ground layer disposed under the bottom surface of the antenna supporting substrate;
a signal feeding line for transmitting satellite signals disposed on one of surfaces of the antenna supporting substrate, or inside of the antenna supporting substrate, or under the first patch antenna, or under a side of the ground layer back to the antenna supporting substrate; and
a sub-wavelength structured enhancer disposed above the first patch antenna, wherein the sub-wavelength structured enhancer is a solid structure and spaced with the first patch antenna by an air gap ranging between 7 mm and 47 mm, and a vertical projection of the sub-wavelength structured enhancer overlaps with a vertical projection of the first patch antenna;
wherein a maximum 1D linear dimension of the vertical projection of the sub-wavelength structured enhancer is not greater than the wavelength of Ku band, and the maximum 1D linear dimension of the vertical projection of the sub-wavelength structured enhancer is N-fold of the maximum 1D linear dimension of the vertical projection of the first patch antenna, and 1≤N≤ratio of [(wavelength of Ku band)/(the maximum 1D linear dimension of the vertical projection of the first patch antenna)], to make the satellite signals be diffracted when passing through the sub-wavelength structured enhancer.