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Board Overview
This SP4T board integrates MEMS IC switching with a controlled-impedance RF layout to support wideband operation (DC–18 GHz SP4T, and up to 26 GHz in Super-Port mode).
RF Interfaces: 50 Ω 2.92 mm female connectors (board level)
Control: 5 V CMOS logic compatible with optical isolation
Power Supply: Single 90V supply
The board implements proper RF grounding, impedance control, and decoupling to maximize isolation and minimize reflections across the operating band.
Switch IC Key Features
| Specification | Value |
|---|---|
| Switch Type | MEMS SP4T |
| Frequency Range | DC–18 GHz (standard) DC–26 GHz (Super-Port mode) |
| Insertion Loss | 0.3 dB @ 6 GHz 1.3 dB @ 18 GHz (see plots for full curve) |
| Isolation | 25 dB @ 6 GHz (standard) 42 dB @ 6 GHz (Super-Port) |
| Return Loss | 15 dB @ 6 GHz 10 dB @ 18 GHz |
| Switching Time | tON 8.5 µs / 16 µs tOFF 2.5 µs / 6 µs |
| Linearity (IP3) | 95 dBm (typ) |
| Operating Temperature | −40 °C to +85 °C |
| Control Interface | CMOS compatible 5V logic (optically isolated) |
| RF Connectors | 50Ω 2.92 mm female |
| Power Supply | Single 90V supply |
| Board Size | 63 mm × 56 mm (confirm final dimensions) |
| Compliance | RoHS compliant |
| ESD Rating | Class 0 |
| Warranty | 1 year |
| Return Policy | 30-day money-back guarantee |
Software & Control
Control Method: Logic pins for switching states
Automation Support: GPIO with optical isolation/ USB support (via host micro/controller).
This board can be easily integrated with Python or embedded control software.
Typical Applications
RF test and measurement systems
Millimeter-wave communications (5G FR2)
Satellite transponder subsystems
Radar and sensor systems
Automated test equipment (ATE) routing
Military systems
Mechanical & Integration
Board Size: 63 mm × 56 mm
Connectors: 50 Ω 2.92 mm female
Mounting Holes: Standard rack/fixture pattern
Housing: Optional metal enclosure
Compliance & Reliability
RoHS: Yes
**ESD Rating: class 0
Ordering Information:
Part Number Scheme
Standard lead time: 3–4 weeks unless in stock
Warranty: 1 year
Returns: 30-day money-back guarantee
Shipping region info
Downloads
Made in the USA
In Qubit Microwave we strive for the highest quality products. All microwave switch designs, ICs, and fabrication is conducted in the USA, allowing streamlined production, reasonable pricing without foreign tariffs.