4 2 3 Combined thru/2-way/3-way type LPA combiner using 4 position switch

摘要

PURPOSE: A 2-way and 3-way combined power amplifier combiner using 4-position switches is provided to mount a 2-way and 3-way divider end and a combiner end, in order to switch the 4-position switches and connect a required divider to the combiner end, thereby receiving various FA(Frequency Allocation) changes with one LPA(Linear Power Amplifier). CONSTITUTION: The first switch(211) inputs at least one FA allocated by sector of a BTS, and selectively forms a path. A divider(221) inputs output signals of the first switch(211), and divides the signals to output the signals. The second switch(212) selectively inputs at least one FA inputted by sector of the BTS, and inputs output signals of the first switch(211) and the divider(221), then forms a path to transmit the signals to an amplifier. The third switch(213) inputs an output signal of the amplifier, and selectively forms a path. Combiners(224,225) combine output signals of the third switch(213), and output the combined signals. The fourth switch(231) forms a path as an output port for output signals of the third switch(213) and the combiners(224,225).