7頁英文doc檔,例如以下問題的Q&A。下載讀過者要來回報交流經驗喔! * @& G! x. n9 J+ @ a# L+ [) u. K: e' {* |8 j
1. What is the impedance of free space?6 Z6 Z* f& O4 e8 ?% k( P7 `
2. What happens to the noise figure of a receiver when a 10 dB attenuator is added at the input? / K- x0 C6 h! X+ v; B) s; W3 D
3. An RF system has a linear throughput gain of +10 dB and an output 3rd-order intercept point (OIP3) of +30 dBm. What is the input 3rd-order intercept point (IIP3)? $ T0 z5 \4 d% m& _6 Q1 T3 V * V7 @9 @3 v; z2 Q0 P