Apple Inc.

Ashwin Mohan

Anatoliy Sergey Ioffe

Fucheng Wang

In Kwang Kim

Vikas O Jain

Abhiram Rudrapatna Sridhar

Fahmi L Al Sabie

Krishna Kalyanaraman

A testing device determines an Effective Isotropic Radiated Power (EIRP) of a wanted signal at a beam-peak direction and a maximum Total Radiated Power (TRP) of the wanted signal. The testing device then determines a power difference (ΔP) between the EIRP of the wanted signal at the beam-peak direction and the maximum TRP of the wanted signal. The testing device determines EIRP of a spectral emission mask (SEM) at each measurement bandwidth step at the beam-peak direction. The testing device then determines TRP at each measurement bandwidth step by determining a difference between the EIRP of the SEM at that measurement bandwidth step and the power difference (ΔP). The testing device compares the TRP at each measurement bandwidth step to a SEM specification, and reports whether the SEM specification has been met.

Spectrum emission mask verification based on EIRP measurement

Growing community of inventors

San Diego, CA, United States of America

Ashwin Mohan