MGA-83563 View Datasheet(PDF) - Avago Technologies
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MGA-83563 Datasheet PDF : 22 Pages
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Amplifier Designs for 1.9 GHz and 900 MHz
The same design process used for the 2.5 GHz amplifier
above was repeated for the design of amplifiers for the
1.9 GHz and 900 MHz frequency bands. Example circuits
were built using the same PCB layout as used for the
2.5 GHz amplifier. The schematic diagram, component
values, and assembly drawing for the 1.9 GHz and 900
MHz designs are shown in the “Summary of Example
Amplifiers“ section.
1.9 GHz Amplifier Measured Results
Performance of this amplifier is summarized in Table 3.
The PAE is 41%.
Output
Mode
Gain
Power
Id
(dB)
(dBm)
(mA)
Small Signal
23.8
—
155
G-1dB
22.8
Saturated
17.5
19.6
182
21.5
114
Table 3. Performance Summary for 1.9 GHz Amplifier.
Small signal gain over the 1.5 to 2.3 GHz frequency range
is shown in Figure 33.
26
24
22
20
18
16
14
1.5
1.7
1.9
2.1
2.3
FREQUENCY (GHz)
Figure 33. Small Signal Gain of the Completed
1.9 GHz Amplifier.
The small signal input and output return loss over the 1.5
to 2.3 GHz frequency range is shown in Figure 34.
0
-4
OUTPUT
-8
-12
INPUT
-16
-20
1.5
1.7
1.9
2.1
2.3
FREQUENCY (GHz)
Figure 34. Input and Output Return Loss of the
1.9 GHz Amplifier.
15
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