Ddf big array panel

charlieh0tel·ee_stuff·projects/ddf_big_array/ddf_big_array_panel/ddf_big_array_panel.kicad_pcb

Ddf big array panel PCB layout, top view — open source board by charlieh0tel

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About the Ddf big array panel PCB

Ddf big array panel is an open source PCB design by charlieh0tel, published on GitHub under the BSD-3-Clause license. It is a 4-layer board measuring 236 × 118 mm, with 45 components from 15 distinct parts.

Other key parts include the SMDA05. By type, the board carries 10 capacitors, 10 resistors, 9 diodes, 9 inductors, 6 connectors and 1 IC.

From the project

This is a broadband switching system for a 4-way pseudo-Doppler Direction Finding array. The goal is to cover 2m and 70cm and ideally up to 33cm.

This is a broadband switching system for a 4-way pseudo-Doppler Direction Finding array. The goal is to cover 2m and 70cm and ideally up to 33cm.

There is a central switching board that provides bias distribution to the four antenna switches via coax. Switched bias voltages to rotate the array are delivered over CAT 5/6 into an RJ-45 jack.

Each antenna switch board has a vertical SMA that will take a 1/4-wave SMA whip. The board itself can be affixed to a ground plane to provide "the rest of the antenna."

Main components on the Ddf big array panel

Ddf big array panel bill of materials (BOM)

45 components, 15 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	SMDA05	SO-8_3.9x4.9mm_P1.27mm	U1
1	C2874833 Conn_Coaxial	SMA_Molex-73391-0070_Vertical	J1
4	C1509208 Conn_Coaxial	SMA_Horizontal	J2, J3, J4, J5
1	RJ45_SHIELDED RJ45_Shielded	RJ45_Amphenol_RJHSE5380	J6
4	SMP1340-079LF SMP1340	D_SOD-523	D1, D2, D3, D4
5	ESD7951ST5G	D_SOD-923	D5, D6, D7, D8, D9
4	GZ1608D601TF 600R @ 100 MHz	L_0603_1608Metric	FB1, FB2, FB3, FB4
4	IMC1008ERR56J 560n	IMC1008	L1, L2, L3, L4
1	0402WGF0000TCE 0R	L_0402_1005Metric_Pad0.77x0.64mm_HandSolder	L5
1	GRM1555C1H391FA01D 390p NP0 50V	C_0402_1005Metric	C1
3	GRM1555C1H391FA01D 390p NP0 50V	C_0603_1608Metric	C2, C3, C4
5	GRM1885C1H102JA01D 1n NP0 50V	C_0603_1608Metric	C5, C6, C7, C8, C10
1	DNP	C_0603_1608Metric	C9
6	RC0603FR-07100KL 100K	R_0603_1608Metric	R1, R3, R5, R7, R9, R10
4	RC0603FR-07270RL 270	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R2, R4, R6, R8

Ddf big array panel design files

The KiCad project lives in the charlieh0tel/ee_stuff repository on GitHub; these links point at the commit this page was built from.

Ddf big array panel: common questions

How big is the Ddf big array panel PCB?

The Ddf big array panel measures 236 × 118 mm, has 4 copper layers and is 1.6116 mm thick.

How many components are on the Ddf big array panel?

45 components, from 15 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 Ddf big array panel design files?

From the charlieh0tel/ee_stuff repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Ddf big array panel design in my own project?

Yes, under the terms of its BSD-3-Clause license, which charlieh0tel chose for the repository.

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