ST DCPL-WB-02D3 Wide-band, dual-path Directional Coupler with Integrated 50 Ohm Loaded Isolated Port Data Manual
Summary
This high-performance, wide-band directional coupler is engineered for measuring transmission output power across 2G/5G WLAN frequencies (2400 MHz – 5850 MHz). Designed for Multi-band equipment, such as Power Amplifier or Front End Modules, it ensures low insertion loss and stable RF performance. The accompanying manual provides detailed electrical characteristics, optimized PCB recommendations, package blueprints, and comprehensive setup guidelines necessary for professional integration into complex wireless systems.
Page 1 Text Content
DCPL-WB-02D3
Wide-band, dual-path directional coupler with integrated 50 ohm loaded isolated port
Datasheet − production data
Features 50 Ω nominal input / output impedance Wide operating frequency range: 2400 MHz-5850 MHz Low insertion loss
Flip Chip (7 bumps)
High ESD ruggedness Lead-free CSP
Figure 1. Pin configuration (bump view)
Small footprint: 1670 x 1440 µm Very low profile (< 600 µm after reflow)
LB LB
out in
Benefits High RF performance LB Path RF module size reduction CPLD B1
HB Path
Applications
HB HB
GND C2
out in
Multi-band equipment such as: Power amplifier module Front end module
Description
The DCPL-WB-02D3 is a wide-band, dual-path directional coupler designed to measure transmission output power in WLAN applications. This dual path CPL has been customized for wide-band operating frequencies (2G/5G WLAN) with low insertion losses in the transmission bandwidth (2400 MHz - 5850 MHz). This device is built with two different RF couplers (one dedicated to LB, the other dedicated to HB) sharing the same coupled ports. Isolated port is loaded with an integrated 50 Ω resistor. The DCPL-WB-02D3 has been designed using STMicroelectronics IPD (integrated passive device) technology on non-conductive glass substrate to optimize RF performance. The device is delivered 100% tested in tape and reel.
June 2012 Doc ID 023285 Rev 1 1/8 This is information on a product in full production. www.st.com
Page Summary Contents For ST DCPL-WB-02D3 Wide-band, dual-path Directional Coupler with Integrated 50 Ohm Loaded Isolated Port Data Manual
Manual Details
| Brand | Dual |
|---|---|
| Pages | 8 |
| File Size | 93.14 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
What is the wide operating frequency range for this coupler?
The device operates across a wide bandwidth from 2400 MHz to 5850 MHz.
What is the maximum rated input power (RF power)?
The absolute maximum rating for input RF power in CW mode is 25 dBm.
How does the coupler handle multiple bands?
It includes two dedicated RF couplers, providing separate paths optimized for both LB and HB WLAN frequencies.
What level of protection against electrostatic discharge (ESD) does it offer for humans?
The Human Body Model (HBM) rating is given as 2 kV.