Coupler
About the Coupler PCB
Coupler is an open source PCB design by M0LTE, published on GitHub. It is a 2-layer board measuring 100 × 40 mm, with 26 components from 12 distinct parts.
Other key parts include the 74LVC1G17 and 74LVC74. By type, the board carries 12 resistors, 8 capacitors, 4 connectors and 2 ICs.
It belongs with the rf & radio designs in this gallery.
From the project
An attempt to build a complete ham radio transceiver around a Raspberry Pi
Directional coupler modules to test different options for the Pi Transceiver
The coupler is a short PCB directional coupler using Guerilla GRF1201 detctors
Main components on the Coupler
Coupler bill of materials (BOM)
26 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LVC1G17 GRF1201 | DFN-6-1EP_1.5x1.5mm_P0.5mm_EP0.6x1..1mm | U1 |
| 1 | 74LVC74 GRF1201 | DFN-6-1EP_1.5x1.5mm_P0.5mm_EP0.6x1..1mm | U2 |
| 1 | CONN_01X06 Conn_Coaxial | SMA_Samtec_SMA-J-P-X-ST-EM1_EdgeMount | J1 |
| 1 | C1509221 Conn_Coaxial | SMA_Samtec_SMA-J-P-X-ST-EM1_EdgeMount | J2 |
| 2 | C1509221 Conn_01x03 | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J3, J4 |
| 2 | 1NF C | C_0603_1608Metric | C1, C2 |
| 6 | 10N C | C_0603_1608Metric | C3, C4, C5, C6, C7, C8 |
| 1 | 4K7 R | R_0603_1608Metric | R1 |
| 7 | 10K R | R_0603_1608Metric | R2, R7, R8, R9, R10, R11, R12 |
| 2 | R | R_0603_1608Metric | R3, R4 |
| 1 | 220 R | R_0603_1608Metric | R5 |
| 1 | 470 R | R_0603_1608Metric | R6 |
Coupler design files
The KiCad project lives in the M0LTE/pi-transceiver repository on GitHub; these links point at the commit this page was built from.
Coupler: common questions
How big is the Coupler PCB?
The Coupler measures 100 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Coupler?
26 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Coupler design files?
From the M0LTE/pi-transceiver repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Coupler design in my own project?
The repository has no license, so all rights stay with M0LTE. Use it as a reference, and ask the author before reusing the design.
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