Patent ID: 8401506

Claim:
A method for the wireless terminal radiation performance test based on a data mode, comprising: building a human body model, in which the upper limb of the model holds the device under test at a predefined distance in front of the head of the model; taking a dual-polarized antenna of the device under test as the origin to build a spherical coordinate and selecting a testing point in the spherical coordinate; placing the model under the circumstance of a full-anechoic chamber, enabling the device under test to work in a data mode, and collecting the total radiated power at the testing point in the spherical placement system using the dual-polarized antenna wherein the total radiated power collected at each testing point includes a horizontal polarization component and a vertical polarization component; obtaining the total radiated power of the device under test by steps of: respectively obtaining the total radiated power at each testing point according to formula (1): TRP = 1 4 ⁢ π ⁢ ∮ ( EIRP θ ⁡ ( Ω ; f ) + EIRP φ ⁡ ( Ω ; f ) ) ⁢ ⅆ Ω , formula ⁢ ⁢ ( 1 ) wherein TRP is the total radiated power of the current testing point, Ω is the solid direction angle of the current testing point in the spherical coordinate system, EIRP θ and EIRP φ are the horizontal and vertical polarization components at the solid direction angle respectively, and f is the current working frequency of the device under test; and obtaining the total radiated power of the device under test according to formula (2) TRP ≈ π 2 ⁢ NM ⁢ ∑ n = 0 N - 1 ⁢ ∑ m = 0 M - 1 ⁢ [ EIRP θ ⁡ ( θ n , φ m ; f ) + EIRP φ ⁡ ( θ n , φ m ; f ) ] ⁢ sin ⁡ ( θ n ) , formula ⁢ ⁢ ( 2 ) wherein TRP is the total radiated power of the device under test, N and M are multiple sampling intervals for θ and φ respectively, θ n and φ m are testing angles, EiRP θ (θ n ,φ m ) is the horizontal polarization component of the testing point having the testing angles θ n and φ m , EiRP θ (θ n ,φ m ) is the vertical polarization component of the testing point having the testing angles of θ and φ i , and f is the current working frequency of the device under test.