D2012UK
ꢃꢉ
ꢃꢈ
ꢃꢆ
ꢃꢄ
ꢃꢀ
ꢉ
ꢃꢂ
ꢃꢆ
ꢃꢅ
ꢃꢄ
ꢃꢉ
ꢃꢈ
ꢃꢆ
ꢃꢄ
ꢃꢀ
ꢉ
ꢂꢀ
ꢆꢂ
ꢆꢀ
ꢅꢂ
ꢃꢃ *DLQ
ꢃꢀ G%
3
3
RXW
ꢅꢀ (IILFLHQF\
ꢄꢂ ꢊ
RXW
Iꢇ ꢇꢃꢀꢀꢀꢇ0+]
ꢇꢀꢁꢆ$
Iꢇ ꢇꢃꢀꢀꢀꢇ0+]
ꢇꢀꢁꢆ$
:
,
:
GTꢇ
,
GTꢇ
ꢈ
ꢄꢀ
9 ꢇ ꢇꢄꢉ9
GV
ꢈ
ꢋ
ꢉ
ꢊ
ꢈ
9 ꢇꢄꢉ9
GVꢇ
ꢆ
ꢃꢂ
ꢆ
ꢄ
ꢃꢀ
ꢄ
ꢀ
ꢂ
ꢀ
ꢀ
ꢀꢁꢂ
ꢃ
ꢃꢁꢂ
ꢄ
ꢄꢁꢂ
ꢅ
ꢅꢁꢂ
ꢆ
ꢀ
ꢀꢁꢂ
ꢃ
ꢃꢁꢂ
ꢄ
ꢄꢁꢂ
ꢅ
ꢅꢁꢂ
ꢆ
3RXW
(IILFLHQF\
3
ꢇꢇꢇꢇꢇ:
LQꢇ
3RXW
JDLQ
3
ꢇꢇꢇꢇꢇ:
LQꢇ
Figure 1
Figure 2
Output Power and Gain vs. Input Power
Output Power and Efficiency vs. Input Power
ꢅꢂꢀ
ꢅꢂꢁ
ꢅꢃꢀ
ꢅꢃꢁ
ꢅꢇꢀ
OPTIMUM SOURCE AND LOAD IMPEDANCE
,0'ꢇ
G%F
I
I
ꢄꢂꢀꢀꢀꢄꢄ0+]
ꢄꢈꢈꢈꢉꢈꢄ0+]
ꢂ
ꢃ
Frequency
MHz
Z
Ω
Z
L
Ω
S
ꢅꢇꢁ
ꢅꢆꢀ
ꢅꢆꢁ
ꢅꢁꢀ
9
ꢄ ꢄꢃꢊ9
GV
1000
5.0 - j7.2 2.4 - j7.1
,
ꢄ ꢄꢀꢉꢆ$
GT
ꢀ
ꢁ
ꢂꢀ
ꢂꢁ
ꢃꢀ
ꢃꢁ
,0'ꢇ
3 ꢄꢄ:ꢄꢄ3(3
RXW
Figure 3
Output Power and Efficiency vs. Input Power
Typical S Parameters
!
Vds=28V, Idq=0.8A
#
MHz S MA R 50
!Freq
!MHz
100
200
300
400
500
600
700
800
900
1000
S11
mag
S21
mag
S12
mag ang
98 0.01318 13
69 0.01
52 0.00653 10 0.708 -137
40 0.00596 49 0.767 -146
27 0.00891 71 0.813 -155
22 0.01349 79 0.851 -165
19 0.01862 85 0.881 -166
12 0.02344 82 0.902 -170
S22
mag
0.49
0.61
ang
ang
ang
-94
-125
0.841 -122 24.547
0.871 -146 11.482
0
0.891 -156
0.902 -163
0.923 -170
0.933 -174
0.955 -175
0.955 -177
6.683
4.365
3.055
2.113
1.758
1.413
1.161
0.944
0.966
0.955
179
177
5
3
0.02851 80 0.902 -177
0.03236 80 0.902 -179
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 12/00