RF Multiplexers

Image Part Number Description / PDF Quantity Rfq
D6DA1G485K2W1-Z

D6DA1G485K2W1-Z

TAIYO YUDEN

SAW DUPLEXER W-CDMA/LTE BAND 11

0

FI212P089213-T

FI212P089213-T

TAIYO YUDEN

RF DIPLEXER 892MHZ/1.94GHZ 2012

2750

AD1542-1643D296

AD1542-1643D296

Anatech Electronics Inc.

1542 MHZ / 1643 MHZ CAVITY DUPLE

10

DPX202690DT-4060A1

DPX202690DT-4060A1

TDK Corporation

RF DIPLEXER 0805 6 PC PAD

769

DPX162170DT-8122B1

DPX162170DT-8122B1

TDK Corporation

RF DIPLEXER 892MHZ/1.94GHZ 0603

3712

AD4700-5550D424

AD4700-5550D424

Anatech Electronics Inc.

4700 MHZ / 5550 MHZ CAVITY DUPLE

10

RFDIP2520080TM0T62

RFDIP2520080TM0T62

Walsin Technology

RF DIPLEXER 1.575/2.45GHZ 1008

0

DPX205850DT-4052B2

DPX205850DT-4052B2

TDK Corporation

RF DIPLEXER 0805 6 PC PAD

1975

AD2510-2680D371

AD2510-2680D371

Anatech Electronics Inc.

2510 MHZ / 2680 MHZ CAVITY DUPLE

10

FI212P082931-T

FI212P082931-T

TAIYO YUDEN

RF DIPLEXER 829MHZ/2.055GHZ 0805

531

DPX165950DT-8026A1

DPX165950DT-8026A1

TDK Corporation

RF DIPLEXER 2.45/5.425GHZ 0603

7929

FI212P0829G2-T

FI212P0829G2-T

TAIYO YUDEN

RF DIPLEXER 829MHZ/2.2GHZ 0603

4653

DP05A1920TTR

DP05A1920TTR

Elco (AVX)

RF DIPLEXER 859MHZ/1.92GHZ 0805

0

2450DM40A1575E

2450DM40A1575E

Johanson Technology

RF DIPLEXER 1.575GHZ/2.45GHZ

702

D5PE942M5P3GT-Z

D5PE942M5P3GT-Z

TAIYO YUDEN

RF DUPLEXER 9SMD NO LEAD

0

DP05B5425TTR

DP05B5425TTR

Elco (AVX)

RF DIPLEXER 2.45/5.425GHZ 0805

0

B39212B8092P810

B39212B8092P810

RF360 - A Qualcomm-TDK joint venture

RF DUPLEXER 1.95GHZ/2.14GHZ 9SMD

4838

RFDIP2510G15AT

RFDIP2510G15AT

Walsin Technology

DIPLEXER 5-1002MHZ/1125-1675MHZ

100

FAR-D5PF-881M50-M3E9-Z

FAR-D5PF-881M50-M3E9-Z

TAIYO YUDEN

RF DUPLEXER 9SMD NO LEAD

3033

200000130

200000130

Amphenol

DPF 2/6 L-4/6N

100

RF Multiplexers

1. Overview

RF/IF multiplexers are devices that route high-frequency signals (typically 300 MHz to 6 GHz for RF, and 10 MHz to 1 GHz for IF) between multiple channels. RFID RF multiplexers specialize in managing signals for radio frequency identification systems (125 kHz to 900 MHz). These components enable efficient signal management in wireless communication, industrial automation, and IoT systems, reducing hardware complexity and cost.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Coaxial RF MultiplexerMechanical switching with high power handling (up to 100W)Test equipment, military communication
MMIC-based MultiplexerMonolithic Microwave IC integration, fast switching ( 1 s)5G base stations, phased array systems
UHF RFID MultiplexerSupports EPCglobal Gen2 protocol, 8-16 portsWarehouse inventory management
Fiber-Optic RF MultiplexerOptical signal routing, low insertion loss (<1 dB)Aerospace telemetry systems

3. Structure and Components

Typical construction includes: - Switch matrix (electromechanical relays or PIN diodes) - RF shielding enclosure (aluminum alloy) - SMA/N-type connectors - Control circuitry (TTL/CMOS interface) - Dielectric substrate (RO4000 series for high frequencies)

4. Key Technical Specifications

ParameterValue RangeImportance
Frequency RangeDC-18 GHzDetermines application compatibility
Insertion Loss0.3-3.5 dBSignal integrity preservation
Isolation20-80 dBPrevents channel cross-talk
Switching Speed10 s-10 msAffects system response time
VSWR1.2:1-2.0:1Impedance matching quality indicator

5. Application Fields

  • Telecom: Base station antenna sharing
  • Medical: MRI RF coil switching
  • Manufacturing: Automated test equipment (ATE)
  • Logistics: RFID warehouse tracking systems

6. Leading Manufacturers and Products

VendorProduct SeriesKey Features
Analog DevicesADG9xxCMOS-based, 0.1-3 GHz, 1.8-5.5V supply
Keysight TechnologiesU2000 SeriesOptical RF multiplexer with 0.05 dB accuracy
Nordic SemiconductornRF24 2.4 GHz, -94 dBm sensitivity for RFID
TE ConnectivityRF Multiplex SwitchIP67 rated for outdoor deployment

7. Selection Guidelines

Consider: 1. Frequency match with application band 2. Signal power handling requirements 3. Environmental conditions (temperature/humidity) 4. Control interface compatibility (SPI/UART) 5. Port count scalability 6. Cost vs. performance trade-offs

8. Industry Trends

Current developments include: - Integration with AI for dynamic signal path optimization - Sub-6 GHz 5G MIMO support expansion - Development of reconfigurable intelligent surfaces (RIS) - RFID multiplexers with embedded sensing capabilities - Miniaturization using LTCC packaging technology

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