US 12,227,037 B2
RFID sensor device with patch-type antenna for tires
Maria Cristina Caccami, Rome (IT); Gaetano Marrocco, Rome (IT); Cecilia Occhiuzzi, Rome (IT); Sara Amendola, Rome (IT); and Nicola D'Uva, Rome (IT)
Assigned to Bridgestone Europe NV/SA, Zaventem (BE)
Appl. No. 17/926,656
Filed by Bridgestone Europe NV/SA [BE/BE], Zaventem (BE)
PCT Filed May 24, 2021, PCT No. PCT/EP2021/063740
§ 371(c)(1), (2) Date Nov. 21, 2022,
PCT Pub. No. WO2021/239645, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 102020000012595 (IT), filed on May 27, 2020.
Prior Publication US 2023/0144232 A1, May 11, 2023
Int. Cl. B60C 23/04 (2006.01); G06K 19/077 (2006.01); H01Q 1/22 (2006.01); H01Q 1/48 (2006.01); H01Q 9/04 (2006.01)
CPC B60C 23/0452 (2013.01) [B60C 23/0493 (2013.01); G06K 19/07764 (2013.01); H01Q 1/2225 (2013.01); H01Q 1/2241 (2013.01); H01Q 1/48 (2013.01); H01Q 9/0421 (2013.01); H01Q 9/0457 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radio frequency identification (RFID) sensor device configured to be embedded in, integrated into, or applied to a tire, the device comprising a patch-type antenna that includes a multilayer structure, the multilayer structure comprising:
a bottom ground plane;
an intermediate dielectric substrate arranged on the bottom ground plane;
one or more top conductive patches arranged on the intermediate dielectric substrate and covering partially or completely the intermediate dielectric substrate, wherein the bottom ground plane and the one or more top conductive patches are short-circuited or capacitively coupled;
a rigid or flexible board arranged on the one or more top conductive patches and/or the intermediate dielectric substrate;
an RFID chip installed on the rigid or flexible board and coupled to the one or more top conductive patches;
a temperature sensor integrated into, or connected to, the RFID chip; and
a pressure sensor installed on the rigid or flexible board and connected to the RFID chip;
wherein the bottom ground plane is formed by:
conductive textile/fabric/thread/fiber/yarn elements and/or layers, or by a metal weft/net/mesh; or
at least partially by conductive and/or metal elements and/or layers of the tire;
wherein the intermediate dielectric substrate is made at least partially of rubber, or is formed at least partially by dielectric and/or rubber elements and/or layers of the tire.