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:
Feb. 24, 2026
Filed:
Sep. 16, 2022
Apple Inc., Cupertino, CA (US);
Yuancheng Xu, San Jose, CA (US);
Thomas E Biedka, San Jose, CA (US);
Jingni Zhong, Santa Clara, CA (US);
Hongfei Hu, Cupertino, CA (US);
Simran Singh, San Francisco, CA (US);
Allen S Kwon, San Jose, CA (US);
Carlo Di Nallo, Belmont, CA (US);
Jayesh Nath, Santa Clara, CA (US);
Mattia Pascolini, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may be provided with a first antenna fed by a first path and a second antenna fed by a second path. A first coupler may be disposed on the first path, a second coupler may be disposed on the second path, and a feedback path may couple the couplers to a receiver. A low-pass filter may be disposed on the second path. The first antenna may transmit signals in a low band. Some of the signals may couple onto the second antenna. The second coupler may pass the coupled signals to the receiver. Control circuitry may generate a scattering parameter value characterizing the coupling of the signals from the first antenna onto the second antenna. The scattering parameter value may be used to determine when to switch the first antenna out of use and the second antenna into use for covering the low band.