SPDT Antenna switch (SMD, ENCLOSURE)

6 months ago 391
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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

How to contact me?


SPDT Antenna switch (SMD, ENCLOSURE): Main module

SPDT Antenna switch (SMD, ENCLOSURE): Power circuit

SPDT Antenna switch (SMD, ENCLOSURE): RF part


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


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