Patent ID: 7945227

Claim:
An apparatus for controlling a voltage gain in an ultra wideband receiving apparatus, comprising: a register configured to store an Automatic Gain Control (AGC) value of an (N−1) th frame, which is detected from a received signal during an AGC operation control section; and a voltage gain controlling unit configured to generate a voltage gain control value, which is applied to a packet detection section of an N th frame, based on the AGC value, and transfer the voltage gain control value to a voltage gain amplifier; wherein the voltage gain amplifier amplifies a voltage gain of a received Radio Frequency (RF) signal of the ultra wideband, which is received through the N th frame, based on the voltage gain control value; wherein the amplified RF signal is converted into a baseband signal; wherein the storing unit stores an AGC value of the N th frame, which is detected from the baseband signal as the received signal.