RD Microwaves representative image displayed on the official C1-B40 directional coupler product page.

C1-B40 | 2–18 GHz 20 dB Directional Coupler

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RD Microwaves C1-B40 is a single broadband directional coupler for 2–18 GHz, with 20 dB nominal coupling (±1 dB) and a manufacturer-rated 25 W average power capability. SMA female RF connectors serve the main line and coupled port. Suitable for general-purpose RF and microwave laboratory, development, and system applications.

Key performance: 0.9 dB maximum main-line loss (including coupling loss); 1.35:1 maximum main-line VSWR; and minimum directivity of 15 dB from 2–12.4 GHz and 12 dB from 12.4–18 GHz.

View the manufacturer’s C1-B40 datasheet (PDF)

Image note: Representative product photo selected by RD Microwaves for its C1-B40 listing; consult the model-specific drawing for exact mechanical details.

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ENGINEERING DATA / C1-B40

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KEY SPECIFICATIONSCatalog values for C1-B40
Frequency2–18 GHz
Controlled specifications, and ordering questions, consult the RD Microwaves C1-B40 drawing/datasheet (Rev.
ENGINEERING USE: Confirm mechanical interface, environmental requirements, qualification level and application-specific limits before final design release. Published catalog values remain controlling where differences exist.
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Description

RD Microwaves C1-B40 | Broadband Directional Coupler

The C1-B40 is a 20 dB single directional coupler intended for broadband RF/microwave signal sampling across the 2–18 GHz frequency range. It is part of RD Microwaves’ general-application directional coupler range. The specifications below are based on the manufacturer’s C1-B40 listing and drawing, revision 2.

C1-B40 Technical Specifications

Manufacturer RD Microwaves
Part number C1-B40
Device type Single directional coupler
Frequency range 2–18 GHz (2,000–18,000 MHz)
Nominal coupling 20 dB (±1.0 dB, including frequency sensitivity)
Frequency sensitivity ±0.5 dB
Main-line loss (including coupling loss) 0.9 dB maximum
Directivity, minimum 15 dB, 2–12.4 GHz; 12 dB, 12.4–18 GHz
Main-line VSWR 1.35:1 maximum
Coupled-line VSWR 1.40:1 maximum
Average power 25 W
Peak power 3 kW
RF connectors SMA female; SMA coupled port

For dimensions, connector geometry, revision-controlled specifications, and ordering questions, consult the RD Microwaves C1-B40 drawing/datasheet (Rev. 2). See also the manufacturer’s C1-B40 product page.

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