Diplexer circuit for mobile communications device

摘要

A composite high frequency component and a mobile communication apparatus incorporating the same need no matching circuits and can easily be miniaturized. The composite high frequency component is constituted of a diplexer (11), high frequency switches (121, 131), high frequency filters (122, 132), and surface acoustic wave filters (123, 133). The diplexer (11) is formed by first inductors and first capacitors. The high frequency switches (121, 131) are formed by diodes, second inductors, and second capacitors. The high frequency filters (123, 133) are formed by third inductors and third capacitors.