Patent ID: 8977226
Filing Date: 2015-03-10
Classification: H01Q,H04B,H04M

Abstract:
1. A mobile terminal, comprising: a transceiver having a plurality of output terminals; a plurality of power amplifier units respectively connected to the plurality of output terminals, and configured to amplify a first or second signal output by the output terminals and to output the amplified first or second signal to at least one antenna connected to the plurality of power amplifiers; a transmitting filter unit disposed between the transceiver and the power amplifier units, and configured to allow signals in a predetermined frequency band to pass therethrough and to block signals except the signals in the predetermined frequency band; and a receiving module configured to receive a third signal through a receiving antenna disposed to be spaced apart from the at least one antenna and to output the received third signal to the transceiver, wherein the transmitting filter unit is implemented in a multi-input single-output form having two input lines and one output line, wherein one of the two input lines corresponds to a delayed line having a different line length from the other input line, and has a different phase value from the other input line, wherein the receiving module comprises an IMD (intermodulation distortion) removing filter and a receiving filter, wherein the IMD removing filter comprises first and second notch filters configured to control an IMD signal included in the third signal due to the output of the first or second signal, each of the first and second notch filters including an LC lumped element, wherein the receiving filter comprises first and second band pass filters and a LNA (Low Noise Amplifier) disposed between the first and second band pass filters, and wherein the first and second notch filters are disposed between the receiving antenna and the first band pass filter.