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:
Jan. 21, 2014
Filed:
May. 27, 2010
Ruiquan Yang, Shenzhen, CN;
Haiqiang Sheng, Shenzhen, CN;
Hongcai LI, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A printed circuit board (PCB) is provided. The PCB includes a first microwave board material, a second prepreg, and a third ordinary board material that are pressed together. The first microwave board material, the second prepreg, and the third ordinary board material are provided with an opening respectively. At least two openings have different sizes. In a region between boundaries of the at least two openings having different sizes, a borehole is provided to pass through the board material in the region. A back-drilled hole is selectively used. A radio-frequency device and a method for manufacturing a PCB are further provided. Thus, it is suitable for designing different power modules and other circuit modules on the same single board, and is compatible with the existing basic PCB manufacturing technologies, which further has a low cost, and can meet the requirements of large-power radio-frequency circuits with different frequencies.