Question: In the context of Total Radiated Power (TRP) measurement for a Device Under Test (DUT), what is the primary basis for calculating TRP in an isotropic Rayleigh fading environment?
Option 1: By integrating the power transmitted in all directions over a single polarization.
Option 2: Through direct measurement of the DUT's maximum transmission power.
Option 3: Via analysis of the DUT's antenna gain patterns in an anechoic chamber.
Option 4: By averaging statistically distributed samples of the radiated power for multiple field combinations and calibrating against a reference power transfer function.
Explanation: In an isotropic Rayleigh fading environment, accurately measuring TRP involves capturing the device's radiated power across various conditions to account for multipath effects. This is best achieved by sampling the power at multiple points and averaging these samples. To obtain an absolute TRP value, this average must be calibrated against a known reference power transfer function, accounting for system losses and antenna efficiencies, ensuring a comprehensive and accurate measurement of the DUT's total radiated power capability in a realistic, dynamic environment.