| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a high frequency switch circuit capable of attenuating the higher harmonics of first and second transmission signals and also reducing the loss of a reception signal. SOLUTION: A first high frequency switch SW1 is arranged between a diplexer 19 for separating first and second frequency bands from a third frequency band and a first transmitting terminal TX1, a second high frequency switch SW2 is also arranged between the first high frequency switch SW1, and first and second receiving terminals RX1 and RX2, and a third switch circuit SW3 is arranged between the diplexer 19, and a second transmitting terminal TX3 and a third receiving terminal RX3. Further, a filter 18 for making first and second transmission/reception signals pass through is arranged between the first high frequency switch SW1 and the first transmitting terminal TX1.</p> |
