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:
Mar. 31, 2015
Filed:
Sep. 27, 2012
Apple Inc., Cupertino, CA (US);
Matthew A. Mow, Los Altos, CA (US);
Thomas E. Biedka, San Jose, CA (US);
Ming-Ju Tsai, Cupertino, CA (US);
Liang Han, Sunnyvale, CA (US);
Xu Han, San Jose, CA (US);
Anand Lakshmanan, Sunnyvale, CA (US);
Nanbo Jin, Sunnyvale, CA (US);
Hongfei Hu, Santa Clara, CA (US);
Dean F. Darnell, San Jose, CA (US);
Joshua G. Nickel, San Jose, CA (US);
Jayesh Nath, Milpitas, CA (US);
Yijun Zhou, Sunnyvale, CA (US);
Hao Xu, Cupertino, CA (US);
Yuehui Ouyang, Cupertino, CA (US);
Nirali Shah, Mountain View, CA (US);
Mattia Pascolini, Campbell, CA (US);
Robert W. Schlub, Cupertino, CA (US);
Ruben Caballero, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Radio frequency test systems for characterizing antenna performance in various radio coexistence scenarios are provided. In one suitable arrangement, a test system may be used to perform passive radio coexistence characterization. During passive radio coexistence characterization, at least one signal generator may be used to feed aggressor signals directly to antennas within an electronic device under test (DUT). The aggressor signals may generate undesired interference signals in a victim frequency band, which can then be received and analyzed using a spectrum analyzer. During active radio coexistence characterization, at least one radio communications emulator may be used to communicate with a DUT via a first test antenna. While the DUT is communicating with the at least one radio communications emulator, test signals may also be conveyed between DUTand a second test antenna. Test signals conveyed through the second test antenna may be used in obtaining signal interference level measurements.