Patent ID: 6735261
Filing Date: 2004-05-11
Classification: H03D,H04B,H04L

Abstract:
Method for calibrating a N-port receiver, wherein the N-port receiver (1) has two inputs and Nâˆ’2 outputs; the two inputs consisting of a first input (2) for a RF signal to be detected and a second input (2) for a RF signal originating from a local oscillator (4); N being an integer larger than 2, the method comprising the following steps:generating calibration signals using the local oscillator signal (4), feeding the calibration signals to one of the first input (2) and the second input (3) of the N-port receiver (1), and calculating calibration coefficients on the basis of the output signals of the N-port receiver (1) in response to the feeding of the calibration signals, wherein the calibration signals are unmodulated signals.