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Std EditionSPDT Antenna switch (SMD, ENCLOSURE)

License: MIT

Published Time:2020-04-10 04:13:33
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EasyEDA project for easy and quick build "SPDT Antenna switch" module for switching receiving antennas. Project includes schematic and PCB prepared for setting up into aluminum enclosure with dimensions 80 x 50 x 20 mm with SMA connectors. Version for mounting SMD components.

Current development progress:

Progress Progress Bug report

Input voltage: USB type B, DC 5 V;
Frequency range: 300 kHz - 2.5 GHz (according to the datasheet on AS169-73LF);
Insertion loss: 0.3 dB (300 kHz - 1 GHz), 0.4 dB (1 - 2.5 GHz);
Isolation: 25 dB (300 kHz - 1 GHz), 24 dB (1 - 2.5 GHz);
RF connector: SMA;
Feed line: 50 Ohm coaxial cable;
Used PCB Material: FR-4;
PCB thickness: 1.6 mm;
PCB copper weight: 1 oz;

Used only for switching receiving antennas! Using the unit in a transmitting radio channel may damage the AS169-73LF.

EasySDR project page at GitHub
Buy SDR receiver: RTL-SDR.COM
Order PCB manufacturing using PCBWay service

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SPDT Antenna switch (SMD, ENCLOSURE): Main module

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SPDT Antenna switch (SMD, ENCLOSURE): Power circuit

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SPDT Antenna switch (SMD, ENCLOSURE): RF part

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ID Name Designator Footprint Quantity BOM_Manufacturer Part BOM_Supplier BOM_Manufacturer BOM_Supplier Part
1 100n C10,C11,C9,C8,C12 0805 WITHOUT MASK 5 0805B104J250 LCSC Walsin Tech Corp C163184
2 100p C7,C6,C5 0805 3 C2012C0G2A101JT000N LCSC TDK C76633
3 SMA RF IN 1 J1 SMA-EDGE 1 ANKX01.0093 LCSC RFsister C129604
4 SMA RF IN 2 J2 SMA-EDGE 1 ANKX01.0093 LCSC RFsister C129604
5 SMA RF OUT J3 SMA-EDGE 1 ANKX01.0093 LCSC RFsister C129604
6 AS169-73LF U3 SOT-23-6 WITHOUT MASK 1 AS169-73LF LCSC Skyworks Solutions C133314
8 100n C13,C2,C4 0805 3 0805B104J250 LCSC Walsin Tech Corp C163184
9 1M R4 0805 1 RC0805FR-071ML LCSC YAGEO C107700
10 100R R1 0805 1 RTT051000FTP LCSC RALEC C103902
11 4.7u C1,C3 0805 2 CL21A475KOFNNNE LCSC Samsung Electro-Mechanics C1746
12 47k R3 0805 1 WR08X4702FTL LCSC Walsin Tech Corp C164000
13 3k R2 0805 1 RTT05302JTP LCSC RALEC C104211
14 PTC, 750mA, 6V F1 0805 1 MF-PSMF075X-2 LCSC BOURNS C116173
15 ACH32C-104-T001 L1 FILTER-SMD_3P-L3.2-W1.6_ACH32C 1 ACH32C-104-T001 LCSC TDK C20540
16 MTS-102-C3 SW2 MTS-102-C3 1 NULL Ebay NULL MTS-102-C3
17 74LVC2G14DW-7 U2 SOT-363_L2.0-W1.3-P0.65-LS2.1-BR 1 74LVC2G14DW-7 LCSC Diodes Incorporated C362110
18 MTS-101/102-C3 SW1 MTS-102-C3 1 NULL Ebay NULL MTS-102-C3
19 LP5907MFX-3.3/NOPB U1 SOT-23-5 1 LP5907MFX-3.3/NOPB LCSC Texas Instruments C80670
20 GREEN LED1 LED-0805 1 NCD0805G1 LCSC Foshan NationStar Optoelectronics C84260
21 USB-B USB1 USB TYPE B 1 C46392 LCSC Jing Extension of the Electronic Co. C46392


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