Search International and National Patent Collections

1. (WO2018107633) HIGH-PERFORMANCE BAND-STOP FILTER AND COMMUNICATIONS CAVITY DEVICE THEREOF

Pub. No.:    WO/2018/107633    International Application No.:    PCT/CN2017/081171
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Fri Apr 21 01:59:59 CEST 2017
IPC: H01P 1/208
H01P 1/213
H01P 7/06
H03H 7/12
Applicants: COMBA TELECOM TECHNOLOGY (GUANGZHOU) LTD.
京信通信技术(广州)有限公司
COMBA TELECOM SYSTEMS (CHINA) LTD.
京信通信系统(中国)有限公司
TIANJIN COMBA TELECOM SYSTEMS LTD.
天津京信通信系统有限公司
Inventors: GUO, Chunbo
郭春波
DI, Yingjie
邸英杰
XIE, Zhenxiong
谢振雄
Title: HIGH-PERFORMANCE BAND-STOP FILTER AND COMMUNICATIONS CAVITY DEVICE THEREOF
Abstract:
Provided in the present invention is a high-performance band-stop filter, comprising a cavity body and a cover plate covering the cavity body; the cavity body is provided with a longitudinal hollow cavity, two connection ports being formed in two ends of the hollow cavity in a longitudinal direction, a transmission wire used to realize an electrical connection between the two connection ports and a transmission wire cavity used to accommodate the transmission wire being provided in the hollow cavity, one side of the transmission wire cavity is provided with multiple resonant cavities arranged in sequence, each resonant cavity having provided therein a resonant post, each resonant post being provided with an accommodation hole accommodating a resonance-adjusting screw, the transmission wire having provided thereon impedance converter structures corresponding to the resonant posts and capacitively coupled to said resonant posts; resonance-adjusting screws corresponding to each resonant post are suspended on the cover plate, said resonance adjusting screws having non-contact connections to the resonant posts. The present high-performance band-stop filter can realize good results in narrow relative bandwidth, wide pass band and stop band bandwidth, high stop band suppression and low insertion loss. Also provided in the present invention is a communications cavity device including the present high-performance band-stop filter.