RF Switches

Image Part Number Description / PDF Quantity Rfq
SW6-040120RN2NM

SW6-040120RN2NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW5-020080AN2NM

SW5-020080AN2NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW2-040012AI4NF

SW2-040012AI4NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW1-002020AI3HM

SW1-002020AI3HM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW6-040120RI3NM

SW6-040120RI3NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW4-030090RI3HF

SW4-030090RI3HF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SEM123DT

SEM123DT

MITEQ, Inc.(L3 Narda-MITEQ)

026-A1234-A1D-4C0

0

SW4-020080AI3NF

SW4-020080AI3NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

S228BDF1

S228BDF1

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW7-010015AN3NM

SW7-010015AN3NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW2-020180RN5NF

SW2-020180RN5NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW2-005020AN4NM

SW2-005020AN4NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW5-020180AN3HM

SW5-020180AN3HM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

S647AN

S647AN

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW3-002020AI3NF

SW3-002020AI3NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW7-002020RI4NM

SW7-002020RI4NM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW4-030090RI1HM

SW4-030090RI1HM

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW5-002020RI2NF

SW5-002020RI2NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW4-010180RN1NF

SW4-010180RN1NF

MITEQ, Inc.(L3 Narda-MITEQ)

SWITCH

0

SW7-020180RN1NF

SW7-020180RN1NF

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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