ONE CHIP DIPLEXER OF DUAL PHONE AND METHOD FOR PRODUCTING ONE CHIP DIPLEXER

摘要

PURPOSE: A one-chip output power control apparatus for a dual phone terminal for a mobile communication and a manufacturing method therefor are provided to simplify a manufacturing process and miniaturize a product by simultaneously embodying a diplexer and a coupler of an AMPS and PCS terminal in one chip. CONSTITUTION: A pattern is formed for composing a capacitor(C3) of a serial resonance circuit to a high frequency band of a diplexer. An inductor(L2) connected to the capacitor(C3) of the formed serial resonance circuit in serial is deposited and formed. A coupling pattern in the high frequency band is formed at a certain position to be mutually operated with the inductor(L2) and a coupler of the high frequency band is composed. A pattern is deposited and formed for composing a capacitor(C1) of a parallel resonance circuit to a low frequency band of the diplexer. An inductor(L1) connected to the capacitor(C1) of the formed parallel resonance circuit in parallel is deposited and formed. A coupling pattern in the low frequency band is formed at a certain position to be mutually operated with the inductor(L1) and a coupler of the low frequency band is composed.