US 12,228,605 B2
Module type sensor for detecting voltage and current of radio frequency signal on PCB transmission line
Jinjoong Kim, Suwon-si (KR); and Donggeun Noh, Osan-si (KR)
Assigned to NEWPOWERPLASMA CO., LTD., Suwon-si (KR)
Filed by Newpowerplasma Co., Ltd., Suwon-si (KR)
Filed on Nov. 7, 2022, as Appl. No. 17/982,266.
Claims priority of application No. 10-2021-0160810 (KR), filed on Nov. 19, 2021.
Prior Publication US 2023/0160946 A1, May 25, 2023
Int. Cl. G01R 31/28 (2006.01); H05K 1/02 (2006.01)
CPC G01R 31/2818 (2013.01) [H05K 1/0237 (2013.01); H05K 2201/10022 (2013.01); H05K 2201/1003 (2013.01); H05K 2201/10098 (2013.01); H05K 2201/10151 (2013.01); H05K 2201/10371 (2013.01); H05K 2201/10409 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A module type sensor for detecting a voltage and a current from a radio frequency (RF) signal, comprising:
a printed circuit board on which a transmission line is printed such that the RE signal flows through the transmission line;
a casing configured to be installed on the printed circuit board, and including:
a casing upper surface portion which finishes an upper surface,
a first casing side surface portion which is bent downward from the casing upper surface portion to form one side surface portion and has a lower end upwardly separated with respect to a path through which the transmission line passes,
a second casing side surface portion which is bent downward from the casing upper surface portion to form the other side surface portion, and has a fixing bracket extending by being bent toward an outside at the lower end, and
casing fixing means configured to fixedly lock the casing on the printed circuit board;
a body unit configured to be fixedly installed inside the casing, formed of an insulator, and having, at a center, an opening which is open toward the transmission line; and
a sensing substrate unit configured to be fixedly installed on an upper portion of the body unit, and including a voltage sensing circuit part which is capacitively coupled to the transmission line exposed through the opening and a current sensing circuit part which is inductively coupled to the transmission line.