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. 08, 2020
Filed:
Aug. 20, 2018
Gardenia Industrial Limited, Kowloon, HK;
Xiao Xiong Liu, Zhongshan, CN;
GARDENIA INDUSTRIAL LIMITED, Tsimshatsui, HK;
Abstract
A sensor board for transmitting and receiving directional radar signals including a non-conductive substrate having a plurality of first recesses distributed at intervals along at least one edge of the non-conductive substrate; a microwave oscillator including an RC oscillator circuit and a transistor Qan anti-coupling foil; a first filter circuit configured to filter an input power Vcc; a second filter circuit configured to filter an output signal; a receiving antenna; and a transmitting antenna including a first wire laid over the plurality of first recesses along the edge of the non-conductive substrate; and a plurality of first electrically conductive protrusions embedded in the first recesses, the first wire electrically connecting the first electrically conductive protrusions.