Cosite interference canceller
About the Cosite interference canceller PCB
Cosite interference canceller is an open source PCB design by ronnypoto, published on GitHub. It is a board, with 31 components from 12 distinct parts.
Other key parts include the AD835ANZ I Channel, AD835ANZ Q Channel and AD8307ANZ. By type, the board carries 13 capacitors, 10 resistors, 4 connectors and 3 ICs.
It belongs with the test & measurement designs in this gallery.
From the project
Active wideband co-site interference cancellation for tactical VHF (30-88 MHz)
Tactical VHF, 30–88 MHz · Final year project, B.Sc. Electrical Engineering Afeka Tel Aviv Academic College of Engineering
Ronny Pustilnik · Adir Lemair — Advisor: Tzvika Rosenblum
A real-time active canceller for co-site interference: the problem where a high-power transmitter sitting next to a receiver saturates its input stages and blinds it completely.
The system taps a reference copy of the interferer, multiplies it by two adaptive weights (I and Q) in an analog vector modulator to synthesise an anti-phase replica, and subtracts that replica in a 180° combiner. An STM32 closes the loop…
Main components on the Cosite interference canceller
Cosite interference canceller bill of materials (BOM)
31 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD835ANZ I Channel | N_8_ADI | U1 |
| 1 | AD835ANZ Q Channel | N_8_ADI | U2 |
| 1 | AD8307ANZ | N_8_ADI | U3 |
| 4 | Conn_Coaxial | J1, J2, J3, J4 | |
| 1 | Conn_01x05 | Nucelo-F446RE1 | |
| 1 | 1nF | C1 | |
| 5 | 10nF | C2, C5, C7, C12, C13 | |
| 7 | 100nF | C3, C4, C6, C8, C9, C10, C11 | |
| 3 | 51 | R2, R5, R6 | |
| 5 | 10k | R3, R4, R8, R9, R12 | |
| 1 | 100 | R10 | |
| 1 | 30k | R11 |
Cosite interference canceller design files
The KiCad project lives in the ronnypoto/cosite-interference-canceller repository on GitHub; these links point at the commit this page was built from.
- SchematicA_Schematic/Schematic.kicad_sch
- NetlistA_Schematic/Netlist.net
Cosite interference canceller: common questions
How many components are on the Cosite interference canceller?
31 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Cosite interference canceller design files?
From the ronnypoto/cosite-interference-canceller repository on GitHub, which has the schematic and a netlist; the links under Design files point to each one.
Can I use the Cosite interference canceller design in my own project?
The repository has no license, so all rights stay with ronnypoto. Use it as a reference, and ask the author before reusing the design.
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