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. 17, 2020
Filed:
Dec. 26, 2018
Shanghai Huahong Grace Semiconductor Manufacturing Corporation, Shanghai, CN;
Ruofan Dai, Shanghai, CN;
Abstract
A radio-frequency (RF) switching system for 5G communications and a method of designing it are disclosed. The RF switching system includes a MMMB switching unit and an antenna. The MMMB switching unit includes a 5G-mode multiband switching subunit including a 5G-mode low-frequency (LF)-band switching subunit and a 5G-mode high-frequency (HF)-band switching subunit partitioned from the 5G-mode LF-band switching subunit at a reference frequency. The 5G-mode LF-band switching subunit is connected to the antenna via a low-pass filter, and the 5G-mode HF-band switching subunit is connected to the antenna via a high-pass filter. The RF switching system for 5G communications has improved isolation performance in both the HF and LF bands and improved insertion loss performance in the HF band.