ST DCPL-WB-00C2 Wide-band, dual-path directional coupler with ISO port
Summary
This versatile dual-path directional coupler is specifically designed for measuring cellular transmission output power across a wide bandwidth, covering frequencies from 824 MHz to 2170 MHz. It ensures low insertion loss (<0.2 dB) and high directivity via dedicated Low Band (LB) and High Band (HB) paths. The manual provides RF engineers and designers with comprehensive technical specifications, detailed electrical characteristics, and measurement data needed for integrating the module into GSM/WCDMA base stations and multi-band mobile phone front-end modules.
Page 1 Text Content
DCPL-WB-00C2
Wide-band, dual-path directional coupler with ISO port
Features 50 Ω nominal input / output impedance wide operating frequency range: 824 MHz-2170 MHz low insertion loss (< 0.2 d B)
Lead-free Flip Chip (8 bumps)
37 d B typical coupling factor high directivity (> 20 d B)
Figure 1. Pin configuration (bump view)
high ESD ruggedness lead-free CSP package
Flip-Chip package small footprint: 1700 x 1850 µm
LB Path
very low profile (< 670 µm thickness)
B1B3IS
Benefits HB Path
high RF performance
RF module size reduction
Complies with the following standards: IEC 61000-4-2 level 4: Description 15 k V (air discharge)
The DCPL-WB-00C2 is a wide-band, dual-path
8 k V (contact discharge)
directional coupler designed to measure cell phone transmission output power in
Applications GSM/WCDMA applications. This dual-path CPL
has been customized for wide-band operating
Multi-band equipment such as:
frequencies (EGSM and CELL, PCS, DCS,
power amplifier module WCDMA band I) with less than 0.2 d B insertion
losses in the transmission bandwidth (824 MHz -
front end module
1980 MHz).
GSM/WCDMA mobile phone
This device is built with two different RF couplers (one dedicated to LB, the other dedicated to HB) sharing the same coupled and isolated ports.The DCPL-WB-00C2 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.
October 2010 Doc ID 17994 Rev 1 1/11
www.st.com
Page Summary Contents For ST DCPL-WB-00C2 Wide-band, dual-path directional coupler with ISO port
Manual Details
| Brand | Dual |
|---|---|
| Pages | 11 |
| File Size | 139.14 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
What operating frequency bandwidth does this coupler support?
It supports a wide operating range from 824 MHz to 2170 MHz.
How low is the insertion loss on either path (LB or HB)?
The insertion loss must be less than 0.2 dB across the transmission bandwidth.
What technology was used for optimization to enhance RF performance?
It uses STMicroelectronics IPD (integrated passive device) technology built on a non-conductive glass substrate.
What are the recommended ESD ratings for this device?
The ratings include ±15 kV for air discharge and ±8 kV for contact discharge.
Are there specific impedances defined for the input/output ports?
Yes, both nominal input, output, coupled, and isolated port impedances are 50 Ω.