US 11,658,415 B2
Antenna module supporting of sensing distance and electronic device including the same
Daehee Park, Suwon-si (KR); Chonghwa Seo, Suwon-si (KR); Jongwon Lee, Suwon-si (KR); and Janghoon Han, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Sep. 24, 2020, as Appl. No. 17/31,698.
Claims priority of application No. 10-2019-0117689 (KR), filed on Sep. 24, 2019.
Prior Publication US 2021/0091465 A1, Mar. 25, 2021
Int. Cl. H01Q 5/28 (2015.01); H04W 52/14 (2009.01); H04W 52/28 (2009.01); H01Q 1/00 (2006.01); H01Q 21/24 (2006.01)
CPC H01Q 5/28 (2015.01) [H01Q 1/002 (2013.01); H01Q 21/24 (2013.01); H04W 52/146 (2013.01); H04W 52/283 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electronic device comprising:
an antenna including a first antenna element and a second antenna element; and
a processor operatively connected to the antenna, wherein the processor is configured to:
transmit a first signal through the first antenna element;
receive, through the second antenna element, a second signal including a signal obtained as the first signal, wherein the second signal is reflected by a target object;
calculate a distance from the antenna to the target object based on a phase of the second signal; and
when the distance to the target object is smaller than a reference distance, reduce a power level of the antenna,
wherein the second signal includes a coupling signal by the first signal and a reflection signal by the target object, and
wherein the processor is further configured to:
remove the coupling signal from the second signal to obtain the reflection signal, and
calculate the distance to the target object based on a phase of the reflection signal.