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5 to 40dB Directional Coupler with 4.3-10 Female Connector, 698MHz–3800MHz

5 to 40dB Directional Coupler with 4.3-10 Female Connector, 698MHz–3800MHz

Directional coupler designed for DAS system and RF signal distribution. 5 to 40dB RF coupler with 4.3-10 female connector, 698MHz–3800MHz frequency range, low insertion loss, and IP65 protection.

Key Specifications

  • Model: YFY-RF-DC0738MF
  • Product Type: Directional Coupler
  • Frequency Range: 698MHz–3800MHz
  • Coupling Value: 5 / 6 / 7 / 10 / 15 / 20 / 30 / 40dB
  • Connector Type: 4.3-10 Female
  • Power Rating: 300W
  • Application: DAS System / Distributed Antenna System / Wireless Signal Distribution

The 5 to 40dB Directional Coupler is designed for efficient RF signal splitting and power distribution in modern wireless communication systems. This RF coupler supports a wide frequency range of 698MHz to 3800MHz, making it suitable for multi-band applications including 4G, 5G, and in-building Distributed Antenna System (DAS) deployments.

With flexible coupling values from 5dB to 40dB, the directional coupler allows engineers to optimize signal distribution according to different RF coverage requirements. The unit is equipped with 4.3-10 Female connectors, providing reliable RF connectivity with low signal leakage and strong mechanical stability. Its compact housing and low-reflection design help reduce insertion loss and maintain signal integrity across the system.

This 5 to 40dB directional coupler offers IP65 protection, wide operating temperature tolerance, and high power handling capacity up to 300W. It is widely used in Distributed Antenna System, leaky feeder systems, wireless base stations, and multi-band antenna applications.

Item

Specification

Model

YFY-RF-DC0738MF

Frequency Range

698MHz–3800MHz

Coupling Values

5 / 6 / 7 / 10 / 15 / 20 / 30 / 40dB

Connector Type

4.3-10 Female

Power Rating

300W

Impedance

50Ω

VSWR

≤1.3

PIM3

≤ -160dBc (+43dBm × 2)

IP Rating

IP65

Dimension (without connectors)

122 × 43 × 26.5 mm

Operating Temperature

-35°C ~ +75°C

Storage Temperature

-55°C ~ +85°C

Key Features

  • Directional coupler for stable RF signal distribution in DAS system applications

  • Supports 5 to 40dB coupling values for flexible power management

  • Wide frequency coverage from 698MHz to 3800MHz

  • Equipped with 4.3-10 Female connectors for secure RF connection

  • Low insertion loss and high isolation for efficient signal transmission

  • IP65 protection for indoor and outdoor installation

  • Suitable for Distributed Antenna System, wireless base stations, and leaky cable systems

  • High power handling up to 300W

Characteristics

In-band Ripple (dB) ±1
Insertion Loss (dB) ≤2.3
Isolation (dB) ≥23

As a professional RF component manufacturer, YFY produces directional couplers for DAS system, wireless communication networks, and RF signal distribution projects.

YFY supports a monthly production capacity of up to 150,000 pcs. The minimum order quantity (MOQ) is 50 pcs, making the product suitable for both project-based procurement and volume deployment.

Each RF coupler undergoes strict RF performance testing before shipment, including Vector Network Analyzer (VNA) verification and PIM Analyzer testing, to ensure stable insertion loss, isolation, VSWR, and passive intermodulation performance.

YFY also supports OEM / ODM customization for directional couplers, including coupling value, connector type, housing color, labeling, and packaging according to project requirements.

RF Passive Solution

RF Passive Solution

Reliable RF signal distribution for wireless communication systems.

Low VSWR & insertion loss
Stable output across frequency bands
Custom RF specifications available
Learn More

A directional coupler is an RF passive component used to split and direct a portion of signal power from one transmission line to another. It is widely used in DAS system and wireless RF distribution networks.

A directional coupler extracts a defined portion of signal power while allowing the remaining power to continue through the main line. A power splitter divides the signal into equal or fixed output paths. Directional couplers are commonly used where controlled coupling is required in Distributed Antenna System design.

This directional coupler supports multiple coupling values, including 5dB, 6dB, 7dB, 10dB, 15dB, 20dB, 30dB, and 40dB, allowing flexible RF power distribution for different network designs.

Yes. With a wide frequency range of 380MHz to 2700MHz, this RF coupler is suitable for modern 4G, 5G, and multi-band DAS system deployments.

This model uses N Female connectors, which provide stable RF connection, low signal leakage, and reliable performance in wireless communication infrastructure.

YFY tests each directional coupler using Vector Network Analyzer (VNA) and PIM Analyzer equipment to verify insertion loss, isolation, VSWR, and passive intermodulation performance before shipment.

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