Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CAVITY FILTER, FILTER CAVITY, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/213913
Kind Code:
A1
Abstract:
A cavity filter, a filter cavity, and a manufacturing method therefor. The manufacturing method for the filter cavity comprises: providing a workpiece to be processed and a metal block (S101); performing first groove milling processing on a surface of the workpiece to form a groove (S102); inserting the metal block into the groove, an interval being present between a bottom portion of the metal block and a bottom wall of the groove, the interval being used to form a first signal channel (S103); processing the workpiece to fabricate a filter cavity (S104). In the process of forming the first signal channel on a cavity side wall or isolation rib, the described method may effectively prevent damage to other structures at the interior of the filter cavity, and the sides of the formed first signal channel are flat and smooth.

Inventors:
WEN, Shiyi (3rd Industrial Area of Shajing Industrial Company, Haoxiang Road Shajing Town, Bao' an Distric, Shenzhen City Guangdong 4, 518104, CN)
CAI, Yonghong (3rd Industrial Area of Shajing Industrial Company, Haoxiang Road Shajing Town, Bao' an Distric, Shenzhen City Guangdong 4, 518104, CN)
Application Number:
CN2018/086374
Publication Date:
November 14, 2019
Filing Date:
May 10, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SHENZHEN TATFOOK TECHNOLOGY CO., LTD (3rd Industrial Area of Shajing Industrial Company, Haoxiang Road Shajing Town, Bao' an Distric, Shenzhen City Guangdong 4, 518104, CN)
International Classes:
H01P11/00; H01P1/207
Foreign References:
CN201655937U2010-11-24
CN203039055U2013-07-03
CN202495561U2012-10-17
CN102176526A2011-09-07
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (A806, Zhongdi Building China University of Geosciences Base, No.8 Yuexing 3rd Road, High-Tech Industrial Estate, Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
Download PDF: