作者cwfy (真诚待人)
看板comm_and_RF
标题Re: [问题] 几个关於PA的问题
时间Fri Apr 7 00:28:48 2006
※ 引述《xuwei (态度 意志 心)》之铭言:
: 1.为什麽class A的PA有最大的gain?
1. Bias @ active region (gm is large)
: 2.为什麽在low-level signal的情况下,class B的PA比class A的PA更有efficient?
lower dc power consumption .
Class A PA consumpt const DC power.
: 3.why the max.Pout output-impedance point of load-pull smith chart
: at left-hand side?
Low impedance due to large current.
: 谢谢
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1F:→ cwfy:我之道助教是谁XD 看到这个答案一模一样的就0分了XD 04/07 00:29
2F:推 obov:真坏心耶 楼上XD 04/07 00:37