I recently decided to conceive a 10W class 446MHz amplifier.
I want to be able to amplify a 100mW signal into a 10W, for that i'm going for a two stages amplifier :
SKY65162 to amplify the signal to 1W Then a 2SK3075 to reach 10W approx. Datasheets :
https://www.mouser.fr/datasheet/2/472/SKYS_S_A0006619433_1-2515303.pdf https://toshiba.semicon-storage.com/ap-en/semiconductor/product/mosfets/detail.2SK3075.html
The first amplifier is very well documented in the datasheet, but the second is more tricky. I have this datasheet which describes partly the circuit to make use of the transistor :
Schematic recommended by the manufacturer This schematic is supposed to describes the circuit required to function at around 500MHz. I was going to use theses values but I thought i could use the S-Parameters provided by Toshiba to make the impedance matching at the input and output.
I've bee searching through internet, lot's of publication, white papers. I even reopened my engineering books to find absolutely nothing.
Toshiba S-Parameters :
VAR vds = 16.0
VAR id = 0.500
! REM DATA NUMBER = 56
BEGIN ACDATA
# HZ S MA R 50
% F n11x n11y n21x n21y n12x n12y n22x n22y
450000000 0.880 -173.1 1.546 60.6 0.0193 -22.5 0.817 -176.5
Questions:
- Is this even possible?
- Does anybody could recommend me a document / method to do this?
