Patent ID: 7580683
Filing Date: 2009-08-25
Classification: H04B,H04J,H04L

Abstract:
1. A radio for receiving and transmitting high frequency signals, comprising: a down-conversion section arranged to down-convert a received first high frequency signal; an up-conversion section arranged to up-convert an information signal to a second high frequency signal; a variable voltage controlled oscillator connected to both the up-conversion section and the down-conversion section for operation in a time division duplex mode; and wherein the up-conversion section, the down-conversion section and the variable controlled oscillator are integrated into a single IC chip; wherein the intermediate frequency signal is a low intermediate frequency signal; wherein a filter is connected to the down-conversion section and being tuned for passing the low intermediate frequency signal; wherein the down-conversion section is arranged to down-convert the received first high frequency signal to an intermediate frequency signal; and wherein the filter is integrated on the single IC chip.