An OFDM telecommunication device, i.e. a receiver, transmitter or
transceiver for OFDM--(Orthogonal Frequency-Division Multiplex) signals
that generally employs the Inverse Fourier Transformation (IFT) technique
to encode and transmit time-division multiplex signals and the Fourier
Transformation (FT) technique to decode the received signals into
time-division multiplex signals comprises a transformation unit (2) that
incorporates at least an analog multiplication step and at least an
analog convolution step of a multiplication convolution multiplication
algorithm or a convolution multiplication convolution signal to perform a
fourier transformation for demodulation and/or an inverse fourier
transformation for modulation into the analog stage of said OFDM
telecommunication device.