Patent ID: 7068231

Claim:
A method of testing mobile phone transmission and reception characteristics over a frequency range including both GSM and DCS frequency bands, the method comprising: a mounting the mobile phone having a mobile phone antenna in a test fixture proximate to a tapered-slot antenna to provide a test system, the tapered-slot antenna being fixed in the test fixture and adapted to transmit and receive test signals ranging from the GSM frequency band to the DCS frequency band, wherein the tapered-slot antenna is tuned at a center frequency of approximately 1.7 GHz; transmitting the test signals from the tapered-slot antenna; receiving the test signals by the mobile phone antenna; and monitoring mobile phone antenna reception characteristics as the mobile phone antenna is rotated on its axis, wherein an insertion loss of the test system is no greater than 1.5 dB over a 100 degree rotation of the mobile phone antenna in the GSM frequency band and no greater than 1.8 dB over a 60 degree rotation of the mobile phone antenna in the DCS frequency band.