RF Switches

Part Number	Description / PDF	Quantity
SKY13374-397LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 6GHZ 12QFN	34265
SKY13381-374LF Skyworks Solutions, Inc.	IC RF SWITCH DPDT 6GHZ 6MLPD	9
SKY13370-374LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 6GHZ 6DFN	76
SKY13286-359LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 6GHZ 16QFN	2147483647
SKY13560-485LF Skyworks Solutions, Inc.	IC RF SWITCH SP4T 14QFN	0
SKYA21038 Skyworks Solutions, Inc.	AUTOMOTIVE VERSION OF SKY13585	3918
SKY12241-492LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 20QFN	19389000
SKY13431-374LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 6GHZ 6DFN	9480
SKY12208-478LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 2.7GHZ 16QFN	2811
SKYA21001 Skyworks Solutions, Inc.	IC RF SWITCH SPDT 3GHZ SC70-6	5129
SKY13588-460LF Skyworks Solutions, Inc.	IC RF SWITCH SP3T 6GHZ 12QFN	6817
SKY12215-478LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 4GHZ 16QFN	0
SKY12213-478LF Skyworks Solutions, Inc.	IC RF SWITCH SPST 6GHZ 16QFN	162
SKY13322-375LF Skyworks Solutions, Inc.	IC RF SWITCH SP4T 6GHZ 10MLPD	3694
SKY13473-569LF Skyworks Solutions, Inc.	IC RF SWITCH SP10T 2.7GHZ 20QFN	0
SKY12212-478LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 2.7GHZ 16QFN	0
SKY13526-485LF Skyworks Solutions, Inc.	IC RF SWITCH SP6T 2.7GHZ 14QFN	2059
SKY12210-478LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 4GHZ 16QFN	2496
AS222-92LF Skyworks Solutions, Inc.	IC RF SWITCH SPDT 3GHZ SC70-6	1676
SKY13489-001 Skyworks Solutions, Inc.	IC RF SWITCH SPDT 2.7GHZ 6WLCSP	2147483647

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

Type	Functional Characteristics	Application Examples
Electromechanical Switches	High isolation (>85dB), low insertion loss (<0.5dB), limited lifespan (10⁷ cycles)	Lab test equipment, fixed wireless systems
Solid-State Switches	Fast switching speed (<20ns), 50 impedance, moderate power handling (30dBm)	5G base stations, software-defined radios
MEMS Switches	Ultra-low insertion loss (0.2dB), high linearity, vacuum encapsulation	Aerospace phased arrays, medical imaging
RFID Antenna Switches	Impedance matching networks, HF/UHF band optimization	Smart 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

Parameter	Typical Values	Importance
Frequency Range	DC-18GHz (standard)	Determines application bandwidth
Insertion Loss	0.3-2.0 dB	Affects signal strength
Isolation	40-100 dB	Prevents signal interference
Power Handling	10W-100W	Limits maximum operational power
Switching Speed	5ms-50ns	Impacts 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

Manufacturer	Representative Product	Key Features
Keysight Technologies	U1880A	67GHz bandwidth, 500ns switching speed
Analog Devices	ADG904	4-channel, 3GHz, CMOS process
STMicroelectronics	AFBR-5010	MEMS-based, 0.15dB insertion loss
Infineon	BTS724G	Automotive-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