Wide-band tapered-slot antenna for RF testing
AssigneeBroadcom Corporation
InventorYizhou Huang
Life of this patent
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Abstract
Methods and apparatus for testing wireless devices. Devices being tested receive and transmit radio frequency test signals. These radio frequency test signals are received or transmitted using an antenna associated with the device, and then are transmitted or received using a unique wide-band tapered-slot antenna connected to a test system. The wide-band tapered-slot antenna has an input path that is substantially orthogonal to the tapered slot, and one of the conductors defining the slot is grounded.
Claims7
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.
Dependencies are inferred from the claim text.