The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 2020
Filed:
Dec. 12, 2019
Sysgration Ltd., Taipei, TW;
Chia-Wen Cheng, Taipei, TW;
SYSGRATION LTD., Taipei, TW;
Abstract
The invention discloses a radio frequency (RF) matching device for a tire pressure sensor, which includes a system control unit, a RF control unit, a RF matching unit, and a multi-frequency antenna in order, wherein the RF matching unit includes a resonance portion, a filtering portion, and a matching portion in order, wherein the resonance unit is connected to the RF control unit to be adjusted to the required initial frequency and cut-off frequency of various frequency bands; the filter unit is connected between the resonance unit and the matching unit to suppress and eliminate noise and unwanted frequency-doubling signals; the matching unit allows the maximum power of the multi-frequency RF signal to be transferred to the multi-frequency antenna, so that the multi-frequency antenna can transmit multiple RF signals of different frequencies.