RF Switches

Definition: RF switches are electronic components used to route high-frequency signals in RF and microwave systems.

Key Types:

• Electromechanical Switches: High power handling, long life, slower switching.
• Solid-State (PIN Diode / FET): Fast switching, compact size, lower power handling.

Selection Criteria:

• Frequency Range (e.g., DC–6 GHz)
• Insertion Loss (<0.5 dB typical)
• Isolation (>40 dB)
• Power Handling (CW & peak)
• Switching Speed (µs for solid-state, ms for mechanical)
• Configuration: SPDT, SP3T, SP4T, etc.

Applications:

Test equipment, communication systems, radar, antenna switching, signal routing.

Package: SMA, QFN, SOIC, or wafer-level for ICs.