US 12,294,153 B2
Array antenna
Chih-Yang Lou, Kaohsiung (TW); Meng-Hua Tsai, Kaohsiung (TW); Wei-Ting Lee, Kaohsiung (TW); and Sin-Siang Wang, Kaohsiung (TW)
Assigned to QUANTUMZ INC., Kaohsiung (TW)
Filed by QuantumZ Inc., Kaohsiung (TW)
Filed on Oct. 24, 2022, as Appl. No. 17/972,558.
Claims priority of application No. 111102009 (TW), filed on Jan. 18, 2022.
Prior Publication US 2023/0231320 A1, Jul. 20, 2023
Int. Cl. H01Q 21/06 (2006.01); H01Q 1/08 (2006.01); H01Q 9/04 (2006.01); H01Q 13/08 (2006.01)
CPC H01Q 21/065 (2013.01) [H01Q 1/085 (2013.01); H01Q 9/0407 (2013.01); H01Q 13/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An array antenna, comprising:
a flexible substrate, formed by a plurality of stacked liquid crystal polymer (LCP) layers and having at least one feed point; and
at least one serial antenna, arranged on the flexible substrate and formed by a microstrip extending from the feed point and connecting a plurality of radiating elements in series, wherein the radiating element in the serial antenna farthest from the feed point is connected to one end of a ground microstrip, another end of the ground microstrip is short-circuited to the ground, and a length of the ground microstrip is approximately one fourth of a wavelength of a center frequency of the array antenna.