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Std edition LNA, Bias Tee powered + filtering (SMD, ENCLOSURE)

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License: MIT

Published Time: 2020-09-29 16:26:10
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Description

EasyEDA project for easy and quick build "LNA, Bias Tee powered + filtering" module for amplify weak radio signals without significantly increasing the noise level and compensation for loss of useful signal when passing through a coaxial cable, with additional filtration before amplifier. Project includes schematic and PCB containing place for FV1206/GE0805C-3 filter and prepared for setting up into aluminum enclosure with dimensions 50 x 25 x 25 mm with N-Type connectors. Version for mounting SMD components.

Current development progress:

Progress Progress Bug report

Input voltage: DC 3.3 - 5.0 V (powered via Bias Tee);
Maximum DC current: 76 mA (PSA4-5043+), 200 mA (PGA-103+);
Frequency range: 50 MHz - 4 GHz (according to the datasheet on PSA4-5043+ and PGA-103+, upper frequency may be unattainable with FR-4 PCB material);
Gain characteristics table (+5 V supply voltage):

Frequency PSA4-5043+ PGA-103+
50 MHz 25.4 dB 26.5 dB
400 MHz 22.1 dB 22.1 dB
1 GHz 18.4 dB 16.2 dB
2 GHz 13.3 dB 11.0 dB
3 GHz 10.2 dB 8.1 dB
4 GHz 8.0 dB 6.2 dB

Noise Figure characteristics table (+5 V supply voltage):

Frequency PSA4-5043+ PGA-103+
50 MHz 0.73 dB 0.5 dB
400 MHz 0.65 dB 0.5 dB
1 GHz 0.75 dB 0.6 dB
2 GHz 0.98 dB 0.9 dB
3 GHz 1.1 dB 1.2 dB
4 GHz 1.44 dB 1.5 dB

Output IP3 characteristics table (+5 V supply voltage):

Frequency PSA4-5043+ PGA-103+
50 MHz 31 dBm 36.7 dBm
400 MHz 32.1 dBm 39 dBm
1 GHz 33.5 dBm 41.9 dBm
2 GHz 32.7 dBm 44.6 dBm
3 GHz 33.6 dBm 44.3 dBm
4 GHz 32.6 dBm 45.4 dBm

Valid filters for use: any filters with FV1206 or GE0805C-3 case;
RF connector: N-Type;
Feed line: 50 Ohm coaxial cable;
Used PCB Material: FR-4;
PCB thickness: 1.6 mm;
PCB copper weight: 1 oz;

EasySDR project page at GitHub
Buy SDR receiver: RTL-SDR.COM
Buy PSA4-5043+ Low Noise MMIC Amplifier: Mini-Circuits PSA4-5043+
Buy PGA-103+ Low Noise Amplifier: Mini-Circuits PGA-103+
Buy filters with FV1206 case: Mini-Circuits RF-Filters
Order PCB manufacturing using PCBWay service

How to contact me?

design drawing
schematic diagram
1 /
  • LNA, Bias Tee powered + filtering (SMD, ENCLOSURE): Main module

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PCB
1 /
  • LNA, Bias Tee powered + filtering (SMD, ENCLOSURE): Main module (MMM1362, FV1206)

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  • LNA, Bias Tee powered + filtering (SMD, ENCLOSURE): Main module (DF782, FV1206)

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  • LNA, Bias Tee powered + filtering (SMD, ENCLOSURE): Main module (MMM1362, GE0805C-3)

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  • LNA, Bias Tee powered + filtering (SMD, ENCLOSURE): Main module (DF782, GE0805C-3)

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