RF Switches

Image Part Number Description / PDF Quantity Rfq
HMC427LP3

HMC427LP3

Analog Devices, Inc.

IC RF SWITCH 8GHZ 16SMT

0

HMC922LP4E

HMC922LP4E

Analog Devices, Inc.

IC RF SWITCH SPDT 4GHZ 24QFN

0

ADG919BRM-REEL

ADG919BRM-REEL

Analog Devices, Inc.

IC RF SWITCH SPDT 2GHZ 8MSOP

0

HMC344

HMC344

Analog Devices, Inc.

IC RF SWITCH SP4T 8GHZ DIE

0

HMC347

HMC347

Analog Devices, Inc.

IC RF SWITCH SPDT 20GHZ DIE

0

HMC550TR

HMC550TR

Analog Devices, Inc.

IC RF SWITCH SPST 6GHZ SOT26

0

HMC182S14ETR

HMC182S14ETR

Analog Devices, Inc.

IC RF SWITCH SP4T 2GHZ 14SOIC

0

HMC574AMS8TR

HMC574AMS8TR

Analog Devices, Inc.

IC RF SWITCH SPDT 3GHZ 8MSOP

0

HMC199AMS8

HMC199AMS8

Analog Devices, Inc.

IC RF SWITCH SPDT 2.5GHZ 8MSOP

0

HMC349LP4CE

HMC349LP4CE

Analog Devices, Inc.

IC RF SWITCH SPDT 4GHZ 16QFN

0

HMC199AMS8TR

HMC199AMS8TR

Analog Devices, Inc.

IC RF SWITCH SPDT 2.5GHZ 8MSOP

0

HMC197AE

HMC197AE

Analog Devices, Inc.

IC RF SWITCH SPDT 3GHZ SOT26

0

HMC336MS8G

HMC336MS8G

Analog Devices, Inc.

IC RF SWITCH SPDT 6GHZ 8MSOP

0

HMC348LP3TR

HMC348LP3TR

Analog Devices, Inc.

IC RF SWITCH SPDT 2.5GHZ 16SMT

0

HMC322-SX

HMC322-SX

Analog Devices, Inc.

IC RF SWITCH SP8T 10GHZ DIE

0

HMC253AQS24TR

HMC253AQS24TR

Analog Devices, Inc.

IC RF SWITCH SP8T 2.5GHZ 24QSOP

0

HMC270MS8GETR

HMC270MS8GETR

Analog Devices, Inc.

IC RF SWITCH SPDT 8GHZ 8MSOP

0

HMC336MS8GTR

HMC336MS8GTR

Analog Devices, Inc.

IC RF SWITCH SPDT 6GHZ 8MSOP

0

HMC276QS24ETR

HMC276QS24ETR

Analog Devices, Inc.

IC RF SWITCH 3GHZ 24QSOP

0

HMC595E

HMC595E

Analog Devices, Inc.

IC RF SWITCH SPDT 3GHZ SOT26

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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