Patent ID: 8010051

Claim:
A multi-path simulation system comprising: a signal generator generating a signal; a control unit connected to the signal generator, controlling the generation of the signal; and a signal simulating unit connected to the signal generator, dividing and adjusting the signal into N simulation signals in N paths to simulate attenuations and delays resulting from the transmission of the signal in the N paths, the signal simulating unit comprising; an attenuator, attenuating the signal generated by the signal generator to simulate the attenuation of the signal during transmission in a wireless communication space, thereby generating an attenuating signal; a power divider dividing the attenuated signal into N attenuated sub-signals; N delay lines connected to the power divider, delaying the N attenuated sub-signals to simulate the delays resulting from the transmission of the signal in the N paths, the delay lines respectively represented by transmission lines disposed on a printed circuit board, wherein length of the transmission line controls distance of transmission of the signal; P switches connected to the delay lines, selecting the attenuated sub-signals delayed by the delay lines, resulting in selected signals; a signal combiner connected to the switches combining the selected signals into a single signal; and a resistor R, disposed between the two adjacent transmission lines to improve isolation of the different signals; wherein N is an integer greater than one, and P is an integer equal to or greater than one.