4 layers70 × 27.5 mm
4 layers32 × 47 mm
Phased array
westonb/tiny-radar23A simple USB powered FMCW radar system
- Size
- 32 × 47 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 55
- Pads
- 309
- Tracks, vias
- 1,298, 377
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 20 Feb 2017
- Updated
- 27 Sep 2017
Overview
Phased array is an open-source printed circuit board by westonb, from the westonb/tiny-radar repository on GitHub. It is a 4-layer board of 32 × 47 mm with 36 parts on 55 nets, routed with 1,298 tracks and 377 vias.
It is built around the PE44820B-X and PCA9534APW. Its parts include 11 resistors, 11 ICs, 8 capacitors and 6 connectors.
Main components
2
PE44820B-X
QFN-32(5x5)-40℃~+105℃ 1.7GHz~2.2GHz 2.3V~5.5V、3.3V~5.5V Phase Shifter Radar QFN-32(5x5) RF Misc ICs and Modules ROHSpSemiRF Misc ICs And Modules
PCA9534APW
TSSOP-16-40℃~+85℃ 10mA 1uA 2.3V~5.5V 25mA 400kHz 400mV 4V 8 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver TSSOP-16 I/O Expanders ROHSTexas InstrumentsI/O Expanders
README
README.mdtiny-radar
A usb connected 2.4GHz frequency modulated continuous wave radar with separate power splitter and phase shifter board for beam steering.
Hardware
STM32 based for DAC control of VCO and ADC for received samples. DC coupled RX signal path.
Firmware
Continuous data acquisition and transmission over USB serial via 12B/16B encoding using only printable ASCII characters
Host Software
In progress. matplotlib / Python 2.7
Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | R | Resistors_SMD:R_0603 | R201, R202, R301, R302, R501, R502, R601, R602 |
| 5 | CONN_01X02 | wbraun_smd:SMA-Edge-China-Short | J101, J102, J103, J104, J105 |
| 4 | 0.47u | Capacitors_SMD:C_0603 | C201, C301, C501, C601 |
| 4 | PCA9534A | Housings_DFN_QFN:QFN-16-1EP_3x3mm_Pitch0.5mm | U201, U301, U501, U601 |
| 4 | PE44820 | Housings_DFN_QFN:QFN-32-1EP_5x5mm_Pitch0.5mm | U202, U302, U502, U602 |
| 3 | 100 | Resistors_SMD:R_0603 | R401, R402, R403 |
| 3 | 1n | Capacitors_SMD:C_0402 | C202, C302, C602 |
| 3 | PD2328J | wbraun_smd:PD2328 | U401, U402, U403 |
| 1 | C | Capacitors_SMD:C_0402 | C502 |
| 1 | CONN_01X04 | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J106 |
Questions
How big is the Phased array PCB?
It measures 32 × 47 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Phased array use?
36 parts, built around the PE44820B-X and PCA9534APW. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Phased array KiCad files?
From the westonb/tiny-radar repository on GitHub, at the commit this page was made from: the board is phased-array/pcb/phased-array.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Phased array design in my own project?
Its repository states no licence, so its author keeps all rights: ask westonb before reusing the design.
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