Patent ID: 6633550
Filing Date: 2003-10-14
Classification: H04B,H04J,H04L

Abstract:
A radio on a single IC chip, comprising:an antenna section for transmitting and receiving a plurality of high frequency signals, said radio including means for transmitting and receiving said plurality of high frequency signals in a time division duplex mode; a single heterodyne down-conversion section coupled to said antenna section, for down-converting directly from a first high frequency signal of said plurality of high frequency signals to a low intermediate frequency signal; a bandpass filter coupled to said down-conversion section; a discriminator coupled to said bandpass filter for detecting a received data signal from said low intermediate frequency signal; an up-conversion section coupled to said antenna section, for up-converting an information signal to a second high frequency signal of said plurality of high frequency signals, said up-conversion section comprising a portion of said down-conversion section; a shaping filter coupled to an input of said up-conversion section; and said down-conversion section, bandpass filter, discriminator, up-conversion section and shaping filter integrated into said single IC chip, wherein bandpass filtering operations are performed by components integrated into said single IC chip.