This is the 12W RF amplifier circuit for frequency range of 88MHz to 108MHz (FM broadband). This new FM power amplifier is used the famous MOSFET RD15HVF1. We've chosen the synthesizer N°1 to drive this amplifier circuit. In fact, only 200mW are required to obtain the 12W output power level.
All the impedance networks (Input & Output) have been decided by using the softwares: Mimp.EXE & Genesys. The FM RF amplifier has a 20 dB gain and provides 12W.
Table of frequency vs output level:
Frequencies
|
Output Power Level
|
Gain
|
Current
|
Efficiency
|
88 MHz
|
12.1 W
|
20.8 dB
|
1.55 A
|
58 %
|
98 MHz
|
12.6 W
|
21 dB
|
1.4 A
|
66 %
|
108 MHz
|
11 W
|
20.4 dB
|
1.3 A
|
62%
|
2W RF amplifier 88-108 MHz based RD15HVF1, source page: radioinitiation.chez-alice.fr
hi, i am designing a power amplifie and i was studying this trasistor and it is perfect to my design. but the problem is, i don't know the input/output impedance to 100Mhz.
ReplyDeleteif you know this information please let me know.