RF Switches

Image Part Number Description / PDF Quantity Rfq
ADRF5026BCCZN-R7

ADRF5026BCCZN-R7

Analog Devices, Inc.

IC RF SWITCH SPDT 20LGA

0

ADG902BRM-REEL7

ADG902BRM-REEL7

Analog Devices, Inc.

WIDEBAND SPST SWITCH

28000

HMC349ALP4CE

HMC349ALP4CE

Analog Devices, Inc.

IC RF SWITCH SPDT 4GHZ 16QFN

12

HMC547ALC3

HMC547ALC3

Analog Devices, Inc.

IC RF SWITCH SPDT 28GHZ 16SMT

2

HMC241ATCPZ-EP-R7

HMC241ATCPZ-EP-R7

Analog Devices, Inc.

EP GAAS MMIC SP4T

0

ADG936BCP-R-REEL7

ADG936BCP-R-REEL7

Analog Devices, Inc.

WIDEBAND DUAL SPDT

7500

ADG918BRMZ-REEL7

ADG918BRMZ-REEL7

Analog Devices, Inc.

IC RF SWITCH SPDT 2GHZ 8MSOP

559

HMC344ALP3ETR

HMC344ALP3ETR

Analog Devices, Inc.

IC RF SWITCH SP4T 16QFN

307

HMC646LP2ETR

HMC646LP2ETR

Analog Devices, Inc.

IC RF SWITCH SPDT 2.1GHZ 6DFN

584

HMC-C583

HMC-C583

Analog Devices, Inc.

IC RF SWITCH SPST 40GHZ DIE

0

HMC253ALC4

HMC253ALC4

Analog Devices, Inc.

IC RF SWITCH SP8T 3.5GHZ 24CSMT

64

ADRF5160BCPZ

ADRF5160BCPZ

Analog Devices, Inc.

IC RF SWITCH SPDT 3.5GHZ 32LFCSP

0

HMC546LP2ETR

HMC546LP2ETR

Analog Devices, Inc.

10 W, FAILSAFE, GAAS, SPDT SWITC

9750

ADG936BRUZ-R

ADG936BRUZ-R

Analog Devices, Inc.

IC RF SWITCH SPDT 2GHZ 20TSSOP

48

HMC344ATCPZ-EP-PT

HMC344ATCPZ-EP-PT

Analog Devices, Inc.

IC RF SWITCH SP4T 16LFCSP

34

HMC849ALP4CETR

HMC849ALP4CETR

Analog Devices, Inc.

IC RF SWITCH SPDT 6GHZ 16QFN

4160

HMC435AMS8GETR

HMC435AMS8GETR

Analog Devices, Inc.

IC RF SWITCH SPDT 4GHZ 8MSOP

4045

HMC345ALP3E

HMC345ALP3E

Analog Devices, Inc.

IC RF SWITCH SP4T 8GHZ 16QFN

602

HMC641ALP4E

HMC641ALP4E

Analog Devices, Inc.

IC RF SWITCH SP4T 20GHZ 24SMT

1596

HMC427ALP3E

HMC427ALP3E

Analog Devices, Inc.

IC TRANSFER SWITCH 8GHZ 16QFN

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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