RF Switches

Image Part Number Description / PDF Quantity Rfq
SS122DHTS-80

SS122DHTS-80

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH SP2T .5-18 GHZ

2

SS142DHS

SS142DHS

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH SP4T .5-18 GHZ

3

S125

S125

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH

0

LIM101

LIM101

MITEQ, Inc.(L3 Narda-MITEQ)

PIN DIODE BASED LIMITER 1-18 GHZ

3

SV123DS

SV123DS

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH SP2T 2-18 GHZ

3

SS213BDHTS

SS213BDHTS

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH SPST 2-18 GHZ

3

SP162DHTS

SP162DHTS

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH SP6T .5-18 GHZ

3

SS212DHTS-80

SS212DHTS-80

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH SPST .5-18 GHZ

3

SV213DS

SV213DS

MITEQ, Inc.(L3 Narda-MITEQ)

PIN SWITCH

0

SW8-040120AN1NF

SW8-040120AN1NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW7-059180RN4NF

SW7-059180RN4NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW8-005020RN5NF

SW8-005020RN5NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SEM133DT

SEM133DT

MITEQ, Inc.(L3 Narda-MITEQ)

032-D1234-A1D-4C2

0

SW7-020180AI3HM

SW7-020180AI3HM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW7-010180RI5NM

SW7-010180RI5NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW7-040120RN5HM

SW7-040120RN5HM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW6-020080AN2NM

SW6-020080AN2NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW1-005020AI2NM

SW1-005020AI2NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW3-010180AI1HM

SW3-010180AI1HM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW7-020180AN5HM

SW7-020180AN5HM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

RF Switches

1. Overview

RF (Radio Frequency) and IF (Intermediate Frequency) switches are critical components in wireless communication systems, enabling signal routing between transmitter, receiver, and antenna. RFID (Radio Frequency Identification) RF switches specifically manage signal paths in RFID readers and tags. These electromechanical or solid-state devices operate in frequency ranges from kHz to GHz, playing vital roles in 5G, IoT, and industrial automation.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Electromechanical SwitchesHigh isolation (>85dB), low insertion loss (<0.5dB), limited lifespan (107 cycles)Lab test equipment, fixed wireless systems
Solid-State SwitchesFast switching speed (<20ns), 50 impedance, moderate power handling (30dBm)5G base stations, software-defined radios
MEMS SwitchesUltra-low insertion loss (0.2dB), high linearity, vacuum encapsulationAerospace phased arrays, medical imaging
RFID Antenna SwitchesImpedance matching networks, HF/UHF band optimizationSmart logistics, access control systems

3. Structure and Components

Typical RF switches consist of: - Housing: Aluminum alloy or ceramic packages - Contact system: Gold-plated beryllium copper contacts - Actuator: Electromagnetic coil or MEMS membrane - RF ports: SMA/N-type connectors or surface-mount pads - Dielectric materials: PTFE or ceramic insulators

4. Key Technical Specifications

ParameterTypical ValuesImportance
Frequency RangeDC-18GHz (standard)Determines application bandwidth
Insertion Loss0.3-2.0 dBAffects signal strength
Isolation40-100 dBPrevents signal interference
Power Handling10W-100WLimits maximum operational power
Switching Speed5ms-50nsImpacts system response time

5. Application Fields

  • Telecommunications: Base station antenna switching
  • Industrial: IoT gateway signal routing
  • Medical: MRI machine RF path control
  • Automotive: Tire pressure monitoring systems
  • Retail: Smart shelf inventory management

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Keysight TechnologiesU1880A67GHz bandwidth, 500ns switching speed
Analog DevicesADG9044-channel, 3GHz, CMOS process
STMicroelectronicsAFBR-5010MEMS-based, 0.15dB insertion loss
InfineonBTS724GAutomotive-grade, 40V load protection

7. Selection Recommendations

Key considerations: - Frequency matching with system requirements - Power handling capacity with 20% safety margin - Environmental factors (temperature, vibration) - Lifecycle requirements (electromechanical vs. solid-state) - Cost vs. performance trade-offs

8. Industry Trends

Future developments include: - Millimeter-wave switches for 5G/6G (28-100GHz) - Integrated passive devices (IPDs) with embedded switches - Energy-harvesting RFID switch solutions - AI-driven smart switch arrays for dynamic spectrum sharing - Nano-MEMS technology achieving sub-10ns switching

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