ATF54143
HEMT by Agilent
Extremely Low Noise
and High IP3 Preamplifiers
using Agilent
Enhancement Mode Pseudomorphic HEMT ATF-54143
(ATF54143 device is available at: www.giga-tech.de)
NF and Gain measurements:
(the best results)
144MHz: NF=0.4dB, Gain=26dB (measured by YU1AW)
144MHz: NF=0.37dB, Gain=20.8dB (measured by OK1UOW)
144MHz: NF=0.25dB, Gain=29dB (measured by IZ4BEH)
432MHz: NF=0.38dB, Gain 22dB, P1dB=18dBm (measured by S53WW)
432MHz: NF=0.4dB, Gain 19dB (measured by YU1AW)
1296MHz: NF=0.4dB, Gain=17.7dB (measured by S53WW)
1296MHz: NF=0.4dB, Gain=17.5dB (measured by YU1AW)
IMPORTANT!
ATF54143 Preamplifiers Strongly Recommended Modifications
NEW VERSION PREAMPS
144 MHz - Built by Bernard, ON4CGX
432 MHz - Built by Paja, ex YU2XO
1296 MHz - Built by Paja, ex YU2XO
144 MHz - Built and measured by Roberto, IZ4BEH
1296 MHz, 432 MHZ and 144 MHz - Built by Ficza, YU7AA
144MHz - Built by Anto, IK4PMB
144 MHz, 432 MHZ and 1296 MHz - Built by Saša, YU1EO
MODIFIED OLD VERSION PREAMPS
144 MHz - Built by Miloš, OK1UOW
144 MHz - Built by Paja, ex YU2XO
1296MHz - Built by Aleš, S59MA
AutoCAD files in DWG format for Printed Circuit Boards: new version
ATF54143 144MHz - PCB ATF54143 432MHz - PCB ATF54143 1296MHz - PCB
All PCBs made of 1.6 mm double side FR4 or G10 epoxy (Er=4.8). Back side left as ground plane.
All used SMD components are type 1206.
AutoCAD files in DXF format for Printed Circuit Boards: new version
ATF54143 144 MHz - DXF ATF54143 432 MHz - DXF ATF54143 1296 MHz - DXF