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:
Nov. 23, 2010
Filed:
May. 23, 2008
Xianzhi Xiong, Shenzhen, CN;
Wenxin Yuan, Shenzhen, CN;
Xianzhi Xiong, Shenzhen, CN;
Wenxin Yuan, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A feed network device, an antenna feeder subsystem, and a base station system are provided. The feed network device comprises: two first stage couplers, two phase shifters, and two second stage couplers cascaded on a Printed Circuit Board, wherein each coupler is a multilayered dielectric broad-side coupler, and the difference of phase between an output signal at the coupling port and an output signal at the direct connection port is 90° in each multi-dielectric broad-side coupler.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile