推 engeering:Thank you so much ~~~~~~~~~~~~~~~~~ m(_ _)m 04/10 01:00
推 Zoomyoyo:push ! 可以當RF 教科書的 introduction 了 04/10 10:37
推 ckuo:同意, 做學問當然也是有diversity會更好, 不過時間不夠用就是 04/13 15:40
推 ihlin:...大概有半輩子的時間吧 04/14 14:24
推 PR0506:好見解! 04/15 22:16
※ 引述《engeering (..)》之銘言：
: 看板的標題是"通訊理論與射頻電路"
: 小弟才疏學淺
: 目前只是學生一枚
: 我想問一下"通訊理論"跟"射頻電路"有著什麼樣的關係呢?
: 一個在業界從事RF射頻電路的工程師需要懂通訊理論嗎?
: 或者這樣問
: 一個懂通訊理論的人去當RF射頻電路工程師會有什麼樣的優勢呢?
: 不好意思這問題可能很笨..不過我真的想知道 <(_ _)>
Usually, RF designers focus on 'circuit design', such as front-end
LNA, mixer, filter, PA, antenna, etc. Communications designers
focus on 'system design'. What they care about is not the detailed
operating mechanism of the circuits but what performance the
circuits can achieve. For example, they will do link budget
verification to check if the spec. is met.
The two fields are closely related. Because RF circuits is used for
communications, designers with a clear picture of communications
theory will know the goals for their design to achieve. That's the
pushing force behind the latest research.
On the other hand, communications designers without somewhat of
RF background may go unrealistic sometimes. For instance, once the
BW of your modulation scheme is decided, you should know what the
noise floor is, which limits your receiver sensitivity and the total
NF your system can tolerate.
If you only know one of the fields, fine. But most active designers
in these fields will know at least the basics of the other field
for the success of their designs.
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