在-41532 典型 scattering 参数,
一般 发射级, z
O
= 50
Ω
, v
CE
= 2. 7 v, i
C
= 10 毫安
freq. S
11
S
21
S
12
S
22
GHz Mag Ang dB Mag Ang dB Mag Ang Mag Ang
0.5 0.243 -122 18.39 8.310 97 -26.90 0.045 68 0.586 -21
0.75 0.199 -149 15.19 5.751 85 -23.99 0.063 69 0.552 -21
1.0 0.184 -169 12.88 4.408 76 -21.74 0.082 69 0.536 -23
1.5 0.186 161 9.64 3.034 62 -18.35 0.121 67 0.520 -28
2.0 0.199 139 7.44 2.354 49 -15.79 0.162 63 0.510 -35
3.0 0.232 107 4.61 1.700 27 -11.93 0.253 52 0.491 -52
4.0 0.275 79 2.84 1.387 6 -9.00 0.355 39 0.467 -72
5.0 0.334 56 1.60 1.202 -12 -6.66 0.465 24 0.424 -95
6.0 0.399 41 0.66 1.079 -29 -4.79 0.576 7 0.349 -125
7.0 0.462 27 -0.02 0.997 -45 -3.30 0.684 -12 0.261 -167
8.0 0.521 14 -0.67 0.926 -60 -2.34 0.764 -32 0.251 134
9.0 0.566 -2 -1.26 0.865 -75 -1.89 0.805 -52 0.328 88
10.0 0.609 -18 -1.88 0.805 -90 -1.92 0.802 -72 0.422 56
11.0 0.678 -28 -2.97 0.711 -101 -2.32 0.766 -91 0.485 29
12.0 0.722 -39 -3.38 0.678 -116 -3.02 0.706 -106 0.620 3
图示 12. 增益 vs. 频率 在
2.7 v, 10 毫安.
便条: db(|s
21
|) = 20
*
log(|s
21
|)
gmax
db(s|2,1|)
k
0
25
15
20
5
10
0213
4 56
增益
(db)
0
1.25
0.75
1
0.25
0.5
k
频率 (ghz)
gmax = 最大 有 增益 (mag) 如果 k > 1
gmax = 最大 稳固的 增益 (msg) 如果 k < 1
k = 稳固 因素
mag =
S
21
(k
±
√
k
2
–1)
S
12
msg = |S
21
|/|s
12
|
k =
1 – |s
11
|
2
– |s
22
|
2
+ |d|
2
; d = s
11
S
22
–
S
12
S
21
2
*
|S
12
||S
21
|
2001.04.25, 7:58 pmpage 7
: 点此下载
