US 11,837,774 B2
RFID tag RFIC module set and RFID tag set
Noriyuki Ueki, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Jul. 9, 2021, as Appl. No. 17/371,743.
Application 17/371,743 is a continuation of application No. PCT/JP2020/036702, filed on Sep. 28, 2020.
Claims priority of application No. 2020-026564 (JP), filed on Feb. 19, 2020.
Prior Publication US 2021/0336323 A1, Oct. 28, 2021
Int. Cl. H01Q 1/22 (2006.01); G06K 19/077 (2006.01); H01Q 7/00 (2006.01); H01Q 5/335 (2015.01)
CPC H01Q 1/2208 (2013.01) [G06K 19/07773 (2013.01); G06K 19/07783 (2013.01); H01Q 1/2225 (2013.01); H01Q 5/335 (2015.01); H01Q 7/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An RFID tag RFIC module set comprising:
a first RFID tag RFIC module; and
a second RFID tag RFIC module,
wherein each of the first and second RFID tag RFIC modules includes:
a rectangular substrate;
an RFIC mounted on the rectangular substrate;
an antenna connection first electrode;
an antenna connection second electrode;
an RFIC connection first electrode;
an RFIC connection second electrode; and
an impedance matching circuit that is connected to the RFIC connection first and second electrodes and to the antenna connection first and second electrodes, and that matches impedance between the RFIC and an antenna,
wherein each of the RFIC connection first and second electrodes, the antenna connection first and second electrodes, and the impedance matching circuit are formed on the rectangular substrate,
wherein the impedance matching circuit includes a first coil and a second coil that are connected to the RFIC connection first electrode and the RFIC connection second electrode, with the first and second coils each having a coil opening that extends along a surface of the substrate,
wherein the first coil and the second coil are juxtaposed in or on the rectangular substrate,
wherein a straight line passing through a center of gravity of the coil opening of the first coil and a center of gravity of the coil opening of the second coil is inclined with respect to one side of the rectangular substrate, and
wherein an orientation of the straight line of the first RFID tag RFIC module is different than an orientation of the straight line of the second RFID tag RFIC module.