Patent ID: 7010274
Filing Date: 2006-03-07
Classification: H01P

Abstract:
1. An antenna switching module having an amplification function for selectively connecting an antenna terminal to any of a transmission terminal and a reception terminal, comprising: an amplifier implemented using at least one active element and a bias circuit to intercept or amplify a transmission signal applied through the transmission terminal, the bias circuit driving the active element to be turned on/off in response to a control signal and determining an amplification factor; a low pass filter and matching circuit unit disposed between the amplifier and the antenna terminal to eliminate harmonic frequency components included an output signal of the amplifier and perform signal matching; a transmission line having a length of ¼ of a wavelength (λ) of a reception signal to connect the antenna terminal and the reception terminal to each other; and a switching diode disposed between a first end of the transmission line, connected to the reception terminal, and the ground, and switched on/ff in response to the control signal.