US 11,723,144 B2
Electronic device and circuit board thereof
Ming-Fan Tsai, Taichung (TW); Chih-Wei Chen, Taichung (TW); Chien-Cheng Lin, Taichung (TW); Chao-Ya Yang, Taichung (TW); and Chia-Yang Chen, Taichung (TW)
Assigned to SILICONWARE PRECISION INDUSTRIES CO., LTD., Taichung (TW)
Filed by SILICONWARE PRECISION INDUSTRIES CO., LTD., Taichung (TW)
Filed on Sep. 2, 2021, as Appl. No. 17/465,335.
Claims priority of application No. 110101291 (TW), filed on Jan. 13, 2021.
Prior Publication US 2022/0225493 A1, Jul. 14, 2022
Int. Cl. H05K 1/02 (2006.01)
CPC H05K 1/0225 (2013.01) [H05K 2201/10098 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a circuit board, comprising:
a circuit board body having an inner layer surface serving as a ground surface; and
a strip-shaped ground circuit arranged in the circuit board body along edges of the ground surface, wherein the strip-shaped ground circuit occupies at most 50% of an area of the ground surface, wherein the strip-shaped ground circuit includes at least one annular body having a gap, wherein an outer surface of the circuit board is served as a mounting surface; and
an antenna module disposed on the mounting surface of the circuit board body and electrically connected to the strip-shaped ground circuit, wherein the antenna module is configured to receive and transmit radiation signals.