RF Switches

Image Part Number Description / PDF Quantity Rfq
ADG918BRMZ

ADG918BRMZ

Analog Devices, Inc.

IC RF SWITCH SPDT 2GHZ 8MSOP

1932

ADG902BRMZ

ADG902BRMZ

Analog Devices, Inc.

IC RF SWITCH SPST 2.5GHZ 8MSOP

1338

HMC427ALP3ETR

HMC427ALP3ETR

Analog Devices, Inc.

IC RF SWITCH 8GHZ 16QFN

135

HMC199AMS8E

HMC199AMS8E

Analog Devices, Inc.

IC RF SWITCH SPDT 2.5GHZ 8MSOP

177

ADRF5019BCPZN-R7

ADRF5019BCPZN-R7

Analog Devices, Inc.

SPDT 100MHZ-13GHZ SWITCHING

0

HMC194AMS8ETR

HMC194AMS8ETR

Analog Devices, Inc.

IC RF SWITCH SPDT 3GHZ 8MSOP

3960

HMC-C011

HMC-C011

Analog Devices, Inc.

IC RF SWITCH SPDT 20GHZ

6

HMC245AQS16ETR

HMC245AQS16ETR

Analog Devices, Inc.

IC RF SWITCH SP3T 3.5GHZ 16QSOP

1304

HMC574AMS8ETR

HMC574AMS8ETR

Analog Devices, Inc.

IC RF SWITCH SPDT 3GHZ 8MSOP

1959

ADRF5046BCCZN

ADRF5046BCCZN

Analog Devices, Inc.

LOW-LOSS REFLECTIVE,SP4T,40GHZ,F

26

HMC595AE

HMC595AE

Analog Devices, Inc.

IC RF SWITCH SPDT 3GHZ SOT26

651

ADG918BCP-REEL7

ADG918BCP-REEL7

Analog Devices, Inc.

2:1 MUX/SPDT SWITCH

24178

ADRF5025BCCZN-R7

ADRF5025BCCZN-R7

Analog Devices, Inc.

IC RF SWITCH SPDT 12LGA

70

ADG902BCP-500RL7

ADG902BCP-500RL7

Analog Devices, Inc.

WIDEBAND SPST SWITCH

35500

HMC253ALC4TR

HMC253ALC4TR

Analog Devices, Inc.

IC RF SWITCH SP8T 3.5GHZ 24CSMT

253

HMC574AMS8E

HMC574AMS8E

Analog Devices, Inc.

IC RF SWITCH SPDT 3GHZ 8MSOP

432

ADG936BCPZ-R

ADG936BCPZ-R

Analog Devices, Inc.

WIDEBAND DUAL SPDT

0

ADRF5045BCCZN

ADRF5045BCCZN

Analog Devices, Inc.

IC RF SWITCH SP4T 30GHZ 24LGA

1124

HMC536LP2

HMC536LP2

Analog Devices, Inc.

IC RF SWITCH SPDT 6GHZ 6DFN

0

HMC344ALP3E

HMC344ALP3E

Analog Devices, Inc.

IC RF SWITCH SP4T 8GHZ 16QFN

1479

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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