| 摘要 |
PROBLEM TO BE SOLVED: To prevent a signal from feeding back through a receive path.SOLUTION: A low noise amplifier (LNA) drain switch circuit 200 includes a first field effect transistor (FET) 205. A drain contact 215 of the first FET is coupled with a gate contact 240 of a second FET 235. A drain contact 250 of the second FET is coupled with the gate of the second FET through a resistor 260. A source contact 245 of the second FET is coupled with a diode 265 which is coupled with an LNA 275. |
