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:
Aug. 16, 2022
Filed:
Sep. 29, 2020
Huawei Technologies Co., Ltd., Shenzhen, CN;
Teijo Henrikki Lehtinen, Kista, SE;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A frequency-division duplex communication apparatus, including a first radio frequency port, a second radio frequency port coupled to an antenna, a third radio frequency port, a fourth radio frequency port coupled to a balancing circuit, and a filtering arrangement having filters of a first type, a filter of a second type and a filter of a third type. The filters of the first type pass signals at a first frequency band and reject signals at a second frequency band. The filter of the second type rejects signals at the first frequency band and passes signals at the second frequency band. The filter of the third type rejects signals at the first frequency band and passes signals at the second frequency band and the phase response of the filter of the second type is 180 degrees from the phase response of the filter of the third type.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile