Power it from USB-C
A standard 5 V supply powers the switching circuitry directly. No battery, charging routine, firmware or host software is needed.
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PROTOTYPE DEVELOPMENT
RF4.
Choose
your path.
A compact SP4T RF switch built around the Qorvo RFSW6042. Connect a common SMA port to one of four RF paths with two simple jumpers.
5 MHz–6 GHzDesign target
5 V USB-CDirect power
38 × 36 mmTwo-layer PCB
EXPLORE RF4 / INTERACTIVE 3DPCB A11 · CASE E1
Loading the RF4 CAD model…
Complete assembly
Drag to rotate · Scroll or pinch to zoom · Separate vertically to see every layer
01 Screws02 Top cover03 PCB04 Bottom shell05 Captive nuts
Actual project CAD tessellation. Connector models and finishes are illustrative; physical fit awaits prototype testing.
01 / BUILT FOR THE BENCH
Simple control.
A considered design.
RF4 is being developed for low-power signal routing in receiver experiments and lab setups. Its selected path is bidirectional, with a 50 Ω design and five SMA interfaces.
Select with two jumpers
Choose one of four paths using C1 and C2. Clear port names and a rear selection table keep the control scheme easy to follow.
Compact, with purpose
A two-layer PCB keeps fabrication cost considered. Curved traces, rounded board corners and dedicated RF return paths guide the layout.
Access stays practical
The two-piece enclosure leaves the SMA ports and USB-C accessible. A top opening reaches both jumpers, and a GXO outline window reveals the board logo.
02 / FROM THE OUTSIDE IN
Every layer,
within reach.
The E1 enclosure brings together a bottom shell, the RF4 PCB and a top cover, held by four M2 screws with captive nuts. The existing board mounting holes locate the assembly.
- Top cover & screwsJumper access, port markings and a GXO logo window.
- RF4 circuit boardRFSW6042 switch, USB-C power and five SMA ports.
- Bottom shell & nutsBoard supports and recessed captive-nut pockets.
03 / DESIGN AT A GLANCE
Know the design.
RF4 is in prototype development. The 5 MHz–6 GHz range is a design target. Insertion loss, isolation, matching, enclosure fit and thermal behaviour still require physical verification. Commercial availability has not been announced.
- Switch architecture
- SP4T · Qorvo RFSW6042TR7
- RF interfaces
- COMMON + RF1–RF4 · SMA · 50 Ω design
- Frequency target
- 5 MHz–6 GHz · low-power lab / receiver use
- Power & control
- 5 V USB-C · two manual jumper selectors
- PCB
- 38 × 36 × 1.6 mm · two copper layers
- Enclosure body
- 43.1 × 41.1 × 13.2 mm, excluding connectors and screw heads
- Shells & fasteners
- PETG design · 4 × M2 screws and captive nuts
04 / TWO BITS. FOUR PATHS.
Choose a port.
Bridge LOW–BIT for L or BIT–HIGH for H on each selector. A missing shunt defaults LOW.
Mute RF before changing jumpers or power. Do not apply external DC to RF ports. Unused ports are reflective; there is no all-off state. Initial prototype testing is limited to +10 dBm CW into matched 50 Ω loads.
| C1 | C2 | Selected port |
|---|---|---|
| HIGH | LOW | RF1 |
| LOW | HIGH | RF2 |
| HIGH | HIGH | RF3 |
| LOW | LOW | RF4 Default |
FOLLOW THE DEVELOPMENT
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