Broadband Directional Couplers – SMA & N Female, Up to 18 GHz

Assortment of SMA and N female broadband directional couplers for RF and microwave applications.

Reliable RF Signal Sampling Across a Broad Range of Frequencies and Power Levels

frequency-400x200
Frequency Coverage
500 MHz to 18 GHz
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Average Power Ratings
Up to 200 Watts
Directional Coupler
Coupling Values
6 to 30 dB
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In Stock
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Bracke Manufacturing offers a broad selection of 50 Ohm broadband directional couplers designed for RF signal sampling, power monitoring, test and measurement, and microwave system applications. Available configurations include SMA Female and N Female interfaces with operating frequency ranges from 500 MHz to 18 GHz and coupling values from 6 to 30 dB.

Choose from compact SMA directional couplers for broadband RF and microwave applications or higher-power N Female models rated up to 200 watts average power. Depending on the model, additional performance characteristics include low VSWR, high directivity, low insertion loss, and peak power ratings up to 3 kW.

Assortment of SMA female broadband directional couplers with frequency ranges up to 18 GHz and coupling values from 6 to 30 dB

SMA Female Broadband Directional Couplers Up to 18 GHz

Choose from 50 Ohm SMA Female directional couplers covering frequencies from 500 MHz to 18 GHz with coupling values from 6 to 30 dB for RF signal sampling, monitoring, test, and measurement applications.

SMA female 6 dB broadband directional coupler for 0.5–2 GHz RF and microwave applications View BM80423

.5–2 GHz SMA Female Broadband Directional Coupler, 6 dB

  • .5–2 GHz Frequency Range
  • 6 ± 1 dB Coupling
  • VSWR ≤ 1.20:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 10 dB broadband directional coupler for 0.5–2 GHz RF and microwave applications View BM80424

.5–2 GHz SMA Female Broadband Directional Coupler, 10 dB

  • .5–2 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.30:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 20 dB broadband directional coupler for 0.5–2 GHz RF and microwave applications View BM80425

.5–2 GHz SMA Female Broadband Directional Coupler, 20 dB

  • .5–2 GHz Frequency Range
  • 20 ± 1 dB Coupling
  • VSWR ≤ 1.20:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 30 dB broadband directional coupler for 0.5–2 GHz RF and microwave applications View BM80491

.5–2 GHz SMA Female Broadband Directional Coupler, 30 dB

  • .5–2 GHz Frequency Range
  • 30 ± 1 dB Coupling
  • VSWR ≤ 1.20:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 10 dB broadband directional coupler for 0.6–4 GHz RF and microwave applications View BM80436

.6–4 GHz SMA Female Broadband Directional Coupler, 10 dB

  • .6–4 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.25:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 6 dB broadband directional coupler for 1–4 GHz RF and microwave applications View BM80426

1–4 GHz SMA Female Broadband Directional Coupler, 6 dB

  • 1–4 GHz Frequency Range
  • 6 ± 1 dB Coupling
  • VSWR ≤ 1.40:1
  • 50 W Average Power (CW)
  • Directivity ≥ 15 dB Minimum
SMA female 10 dB broadband directional coupler for 1–4 GHz RF and microwave applications View BM80427

1–4 GHz SMA Female Broadband Directional Coupler, 10 dB

  • 1–4 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.20:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 20 dB broadband directional coupler for 1–4 GHz RF and microwave applications View BM80428

1–4 GHz SMA Female Broadband Directional Coupler, 20 dB

  • 1–4 GHz Frequency Range
  • 20 ± 1 dB Coupling
  • VSWR ≤ 1.20:1
  • 50 W Average Power (CW)
  • Directivity ≥ 23 dB Minimum
SMA female 10 dB broadband directional coupler for 1–18 GHz RF and microwave applications View BM80437

1–18 GHz SMA Female Broadband Directional Coupler, 10 dB

  • 1–18 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.50:1
  • 50 W Average Power (CW)
  • Directivity ≥ 12 dB Minimum
SMA female 16 dB broadband directional coupler for 1–18 GHz RF and microwave applications View BM80438

1–18 GHz SMA Female Broadband Directional Coupler, 16 dB

  • 1–18 GHz Frequency Range
  • 16 ± 1 dB Coupling
  • VSWR ≤ 1.40:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 20 dB broadband directional coupler for 1–18 GHz RF and microwave applications View BM80439

1–18 GHz SMA Female Broadband Directional Coupler, 20 dB

  • 1–18 GHz Frequency Range
  • 20 ± 1 dB Coupling
  • VSWR ≤ 1.40:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 6 dB broadband directional coupler for 2–8 GHz RF and microwave applications View BM80429

2–8 GHz SMA Female Broadband Directional Coupler, 6 dB

  • 2–8 GHz Frequency Range
  • 6 ± 1 dB Coupling
  • VSWR ≤ 1.25:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 10 dB broadband directional coupler for 2–8 GHz RF and microwave applications View BM80430

2–8 GHz SMA Female Broadband Directional Coupler, 10 dB

  • 2–8 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.25:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 20 dB broadband directional coupler for 2–8 GHz RF and microwave applications View BM80431

2–8 GHz SMA Female Broadband Directional Coupler, 20 dB

  • 2–8 GHz Frequency Range
  • 20 ± 1 dB Coupling
  • VSWR ≤ 1.25:1
  • 50 W Average Power (CW)
  • 3 kW Peak Power
SMA female 6 dB broadband directional coupler for 2–18 GHz RF and microwave applications View BM80440

2–18 GHz SMA Female Broadband Directional Coupler, 6 dB

  • 2–18 GHz Frequency Range
  • 6 ± 1 dB Coupling
  • VSWR ≤ 1.40:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 10 dB broadband directional coupler for 2–18 GHz RF and microwave applications View BM80441

2–18 GHz SMA Female Broadband Directional Coupler, 10 dB

  • 2–18 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.40:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 16 dB broadband directional coupler for 2–18 GHz RF and microwave applications View BM80442

2–18 GHz SMA Female Broadband Directional Coupler, 16 dB

  • 2–18 GHz Frequency Range
  • 16 ± 1 dB Coupling
  • VSWR ≤ 1.35:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 20 dB broadband directional coupler for 2–18 GHz RF and microwave applications View BM80443

2–18 GHz SMA Female Broadband Directional Coupler, 20 dB

  • 2–18 GHz Frequency Range
  • 20 ± 1 dB Coupling
  • VSWR ≤ 1.35:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 30 dB broadband directional coupler for 2–18 GHz RF and microwave applications View BM80506

2–18 GHz SMA Female Broadband Directional Coupler, 30 dB

  • 2–18 GHz Frequency Range
  • 30 ± .8 dB Coupling
  • VSWR ≤ 1.40:1
  • 50 W Average Power (CW)
  • Directivity ≥ 10 dB Minimum
SMA female 6 dB broadband directional coupler for 4–12.4 GHz RF and microwave applications View BM80432

4–12.4 GHz SMA Female Broadband Directional Coupler, 6 dB

  • 4–12.4 GHz Frequency Range
  • 6 ± 1 dB Coupling
  • VSWR ≤ 1.30:1
  • 50 W Average Power (CW)
  • 2 kW Peak Power
SMA female 10 dB broadband directional coupler for 4–12.4 GHz RF and microwave applications View BM80433

4–12.4 GHz SMA Female Broadband Directional Coupler, 10 dB

  • 4–12.4 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.30:1
  • 50 W Average Power (CW)
  • Directivity ≥ 17 dB Minimum
SMA female 20 dB broadband directional coupler for 4–12.4 GHz RF and microwave applications View BM80434

4–12.4 GHz SMA Female Broadband Directional Coupler, 20 dB

  • 4–12.4 GHz Frequency Range
  • 20 ± 1 dB Coupling
  • VSWR ≤ 1.30:1
  • 50 W Average Power (CW)
  • 2 kW Peak Power
SMA female 6 dB broadband directional coupler for 4–18 GHz RF and microwave applications View BM80444

4–18 GHz SMA Female Broadband Directional Coupler, 6 dB

  • 4–18 GHz Frequency Range
  • 6 ± 1 dB Coupling
  • VSWR ≤ 1.35:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 10 dB broadband directional coupler for 4–18 GHz RF and microwave applications View BM80445

4–18 GHz SMA Female Broadband Directional Coupler, 10 dB

  • 4–18 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.35:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 20 dB broadband directional coupler for 4–18 GHz RF and microwave applications View BM80446

4–18 GHz SMA Female Broadband Directional Coupler, 20 dB

  • 4–18 GHz Frequency Range
  • 20 ± 1 dB Coupling
  • VSWR ≤ 1.40:1
  • 25 W Average Power (CW)
  • 1 kW Peak Power
SMA female 20 dB broadband directional coupler for 6–18 GHz RF and microwave applications View BM80492

6–18 GHz SMA Female Broadband Directional Coupler, 20 dB

  • 6–18 GHz Frequency Range
  • 20 ± 1.25 dB Coupling
  • VSWR ≤ 1.35:1
  • 35 W Average Power (CW)
  • 1 kW Peak Power
SMA female 10 dB broadband directional coupler for 7–18 GHz RF and microwave applications View BM80435

7–18 GHz SMA Female Broadband Directional Coupler, 10 dB

  • 7–18 GHz Frequency Range
  • 10 ± 1.25 dB Coupling
  • VSWR ≤ 1.35:1
  • 50 W Average Power (CW)
  • 1 kW Peak Power

With multiple frequency ranges and coupling values available, Bracke SMA Female broadband directional couplers provide flexible options for RF and microwave systems. Select a model above to view detailed specifications, pricing, and product drawings.

Assortment of 200 watt N female broadband directional couplers covering 698 MHz to 2.7 GHz with coupling values from 6 to 30 dB

200 Watt N Female Broadband Directional Couplers, 698 MHz to 2.7 GHz

Explore 50 Ohm N Female directional couplers covering 698 MHz to 2.7 GHz with coupling values from 6 to 30 dB, 200 watt average power handling, and low VSWR for RF monitoring, measurement, and signal sampling applications.

N female 6 dB broadband directional coupler for 0.698–2.7 GHz RF and microwave applications View BM80494

.698–2.7 GHz N Female Broadband Directional Coupler, 6 dB

  • .698–2.7 GHz Frequency Range
  • 6 ± .8 dB Coupling
  • VSWR ≤ 1.25:1
  • 200 W Average Power (CW)
  • 1 kW Peak Power
N female 7 dB broadband directional coupler for 0.698–2.7 GHz RF and microwave applications View BM80495

.698–2.7 GHz N Female Broadband Directional Coupler, 7 dB

  • .698–2.7 GHz Frequency Range
  • 7 ± .8 dB Coupling
  • VSWR ≤ 1.25:1
  • 200 W Average Power (CW)
  • 1 kW Peak Power
N female 8 dB broadband directional coupler for 0.698–2.7 GHz RF and microwave applications View BM80496

.698–2.7 GHz N Female Broadband Directional Coupler, 8 dB

  • .698–2.7 GHz Frequency Range
  • 8 ± .8 dB Coupling
  • VSWR ≤ 1.25:1
  • 200 W Average Power (CW)
  • 1 kW Peak Power
N female 10 dB broadband directional coupler for 0.698–2.7 GHz RF and microwave applications View BM80497

.698–2.7 GHz N Female Broadband Directional Coupler, 10 dB

  • .698–2.7 GHz Frequency Range
  • 10 ± 1 dB Coupling
  • VSWR ≤ 1.25:1
  • 200 W Average Power (CW)
  • 1 kW Peak Power
N female 15 dB broadband directional coupler for 0.698–2.7 GHz RF and microwave applications View BM80498

.698–2.7 GHz N Female Broadband Directional Coupler, 15 dB

  • .698–2.7 GHz Frequency Range
  • 15 ± 1 dB Coupling
  • VSWR ≤ 1.25:1
  • 200 W Average Power (CW)
  • 1 kW Peak Power
N female 20 dB broadband directional coupler for 0.698–2.7 GHz RF and microwave applications View BM80499

.698–2.7 GHz N Female Broadband Directional Coupler, 20 dB

  • .698–2.7 GHz Frequency Range
  • 20 ± 1.2 dB Coupling
  • VSWR ≤ 1.25:1
  • 200 W Average Power (CW)
  • 1 kW Peak Power
N female 30 dB broadband directional coupler for 0.698–2.7 GHz RF and microwave applications View BM80500

.698–2.7 GHz N Female Broadband Directional Coupler, 30 dB

  • .698–2.7 GHz Frequency Range
  • 30 ± 1.5 dB Coupling
  • VSWR ≤ 1.25:1
  • 200 W Average Power (CW)
  • 1 kW Peak Power
Bracke Dual, Octave, and High Power RF directional couplers for signal sampling and power monitoring.
View All Directional Couplers

Explore Bracke’s complete directional coupler selection, including Dual, Octave, and High Power models for RF signal sampling and power monitoring applications.

Bracke N Female broadband directional couplers combine high power handling with multiple coupling options for a range of RF applications. Select a model above to compare specifications, pricing, and available product drawings.

Why Choose Bracke Manufacturing for RF Directional Couplers?

Bracke Manufacturing offers a broad selection of broadband directional couplers engineered for dependable electrical performance in RF test, measurement, communication, and system integration applications. Multiple frequency ranges, coupling values, connector configurations, and power ratings provide flexible options for diverse RF requirements.

Guided by industry veteran Lawrence Pasternack, Bracke Manufacturing combines RF and microwave expertise with precision engineering, reliable performance, and responsive customer support. Our team is ready to help engineers, integrators, and purchasing professionals identify the right components for their application requirements.

Many standard products are in stock and available for quick shipping, helping reduce sourcing time and keep projects moving.

Beyond broadband directional couplers, explore Bracke’s complete selection of RF couplers, power dividers, attenuators, adapters, connectors, cable assemblies, switches, terminations, and RF test accessories for your next RF or microwave project.

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Broadband Directional Coupler Q&A

What is a broadband directional coupler?

A broadband directional coupler is a passive RF component that samples a controlled portion of a signal traveling through a transmission line. The coupled signal can be used for RF monitoring, measurement, testing, and other signal-sampling applications.

What frequency ranges are available?

The Bracke models on this page cover frequencies beginning at 500 MHz and extending to 18 GHz, depending on the model. For example, BM80423 operates from 0.5–2 GHz, while BM80438 operates from 1–18 GHz.

What coupling values are available?

Available coupling values across the product family range from 6 dB to 30 dB, depending on connector type and frequency range.

What connector types are available?

This product family includes SMA Female and N Female broadband directional couplers.

Are these directional couplers 50 Ohm?

Yes. The models included in this product family are designed for 50 Ohm RF systems. For example, the BM80438 SMA model and BM80497 N Female model both specify 50 Ohm impedance.

What is the maximum power available?

Power handling depends on the model. The N Female 698 MHz–2.7 GHz series is rated up to 200 W average power and 1,000 W peak power, while selected SMA configurations have peak ratings up to 3 kW.

What is directivity in an RF directional coupler?

Directivity describes how effectively the coupler distinguishes power traveling in the desired direction from power traveling in the opposite direction. Higher directivity generally provides better separation between forward and reflected signal measurements.

How do I select the correct coupling value?

The appropriate coupling value depends on the signal level required at the coupled port and the amount of power you want to sample from the main transmission path. Lower coupling values provide a stronger sampled signal, while higher coupling values extract a smaller portion of the main-line signal.

Where can I purchase Bracke broadband directional couplers?

Available models can be ordered through Bracke Manufacturing. Select an individual product to review specifications, pricing, availability, and product drawings.

For more information, call (949) 756-1600 or email sales@brackemfg.com. Request our free catalog or contact us for technical support and custom RF solutions.

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