US 11,949,157 B2
Dual polarization log-periodic antenna apparatus
Kai-Hsiung Hsu, New Taipei (TW); Jia-Jiu Song, New Taipei (TW); and Chien-Wen Hung, New Taipei (TW)
Assigned to GRAND-TEK TECHNOLOGY CO., LTD., New Taipei (TW); and RESILIENT TECHNOLOGY CO., LTD., New Taipei (TW)
Filed by GRAND-TEK TECHNOLOGY CO., LTD., New Taipei (TW); and RESILIENT TECHNOLOGY CO., LTD., New Taipei (TW)
Filed on Sep. 7, 2022, as Appl. No. 17/939,943.
Prior Publication US 2024/0079788 A1, Mar. 7, 2024
Int. Cl. H01Q 11/10 (2006.01); H01Q 1/36 (2006.01)
CPC H01Q 11/10 (2013.01) [H01Q 1/36 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A dual polarization log-periodic antenna apparatus comprising:
a log-periodic antenna; and
a conical reflector arranged below the log-periodic antenna,
wherein the log-periodic antenna is configured to transmit a plurality of radio waves;
the conical reflector is configured to reflect the radio waves transmitted by the log-periodic antenna,
wherein the log-periodic antenna comprises:
a printed circuit board, the conical reflector arranged below the printed circuit board;
a first planar log-periodic antenna structure formed on the printed circuit board;
a second planar log-periodic antenna structure formed on the printed circuit board;
a third planar log-periodic antenna structure formed on the printed circuit board and electrically connected to the first planar log-periodic antenna structure; and
a fourth planar log-periodic antenna structure formed on the printed circuit board and electrically connected to the second planar log-periodic antenna structure.