Directional Couplers

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Our offer in coaxial couplers covers :

A directional coupler is used to sample a portion of an input signal for test and/or monitoring purposes. This “sample” signal is typically of much less power than the original input signal.

The coupling value of a directional coupler defines the difference in power between the input signal and the “sample” signal as it is observed at the coupled port. DETI offers a complete line of 6, 10, 16, 20 and 30 dB couplers covering selected frequency bands up to 18 GHz.

Coupling

The attenuation of a signal injected into the input port as seen at the coupled port.

Coupling flatness
The maximum variation in the coupling value over a specified frequency range.

Insertion Loss
The loss of unrecoverable power dissipated within the unit.
 

The following coupling loss have to be added to obtain mainline loss.

Coupling Loss
Power lost from the input signal due solely to the power transferred to the coupling arm of the devise.

Mainline loss
The difference in power between the input signal and the output signal. It is the Insertion Loss and Coupling Loss.

Directivity
The level of output power at the coupled port when a signal is injected into the unit in the desired direction minus t he level of output power at t he coupled port when the same signal is inje cted in the opposite direction. In a bidirectional unit, it is the difference in output power between the two coupled ports as seen from a constant signal in the same direction.

VSWR
The VSWR (Voltage Standing Wave Ratio) at any given port (with all other ports terminated) defines the degree of mismatch between the input signal and the input port and thus is a measure of the loss of input signal at that port.

 

COAXIAL DIRECTIONAL COUPLERS

STANDARD UNI / BI DIRECTIONAL COUPLEURS

Low Freq. 
(MHz)
High Freq.
(MHz)
Coupling
Factor (dB)

VSWR

(Main line)

Directivity
(dB) 

I.L. 

(dB)

Power Handling

(W CW )

P/N - Datasheet
500 2000 6-30 1.2:1 22 0.5 50

CD-1-500-2000-XX-50-SF-SF-SF

click here to download

2000 8000 6-30 1.25:1 20 0.5 50

CD-1-2000-8000-XX-50-SF-SF-SF

click here to download

400 4000 10 1.25 20 0.5 50

CD-1-400-4000-10-50-SF-SF-SF

click here to download

500 2000 10 1.2:1 20 0.3 50

CD-1-500-2000-10-50-SF-SF-SF

click here to download

1000 2000 20 1.2:1 23 0.2 30

CD-1-1000-2000-20-30-SF-SF-SF

click here to download

1000 2000 30 1.2:1 23 0.2 30

CD-1-1000-2000-30-30-SF-SF-SF

click here to download

2000 4000 6 1.2:1 22 0.3 30

CD-1-2000-4000-6-30-SF-SF-SF

click here to download

2000 4000 30 1.2:1 20 0.2 50

CD-1-2000-4000-30-50-SF-SF-SF

click here to download

2000 18000 20 1.4:1 12 0.7 30

CD-1-2000-18000-20-30-SF-SF-SF

click here to download

2200 2300 30 1.25:1 18 0.2 50

CD-1-2200-2300-30-50-NM-NF-NF

click here to download

7000 12000 10 1.3:1 15 0.5 50

CD-1-7000-12000-10-50-SF-SF-SF

click here to download

7000 18000 6 1.35:1 15 0.6 50

CD-1-7000-18000-6-50-SF-SF-SF

click here to download

8000 8500 30 1.3:1 18 0.25 50

CD-1-8000-8500-30-50-SM-SF-SF

click here to download

17000 21000 10 1.5:1 15 0.8 10

CD-1-17000-21000-10-10-KF-KF-KF

click here to download

20000 30000 10 1.7:1 12 1.7 5

CD-1-20000-30000-10-5-KF-KF-KF

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24000 28000 10 1.5:1 18 0.75 5

CD-1-24000-28000-10-5-KF-KF-KF

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25000 27000 6 1.5:1 18 0.75 2

CD-1-25000-27000-6-2-KF-KF-KF

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27000 31000 10 1.5:1 15 0.8 5

CD-1-27000-31000-10-5-KF-KF-KF

click here to download

 

HIGH POWER UNI / BI DIRECTIONAL COUPLERS

Low Freq.
(MHz)
High Freq.
(MHz)
Coupling
(dB)

VSWR (Main line)

Directivity
(dB)
I.L. (dB) Power Handling (W CW) Peak power
(kW)
P/N - Datasheet
1000 3000 20 1.15:1 20 0.3 160  

CD-1-1000-3000-20-160-NF-NF-NF

click here to download

1000 4000 20 1.15:1 27 0.3 500 10

CD-1-1000-4000-20-500-NM-NF-NF

click here to download

1200 1400 40 1.20:1 20 0.2 600 6

CD-1-1200-1400-40-600-NF-NF-NF

click here to download

1200 1400 30 1.20:1 20 0.2 1000 10

CD-1-1200-1400-30-1000-NF-NF

click here to download

1200 1400 40 1.20:1 20 0.2 1000 10

CD-1-1200-1400-40-1000-NF

1200 1400 50 1.20:1 20 0.2 1000 10

CD-1-1200-1400-50-1000-NF-SF

click here to download

6000 18000 25 1.40:1 22 0.3 200 2

CD-1-6000-18000-25-200-TF-TF-SF

click here to download

6000 18000 30 1.40:1 22 0.3 200 2

CD-6000-18000-30-200-TF-TF-SF

click here to download

6000 18000 30 1.50:1 20 0.3 200 2

CD-6000-18000-30-200-NM-NM-SF

click here to download

6000 18000 40 1.40:1 22 0.3 200 2

CD-6000-18000-40-200-TF-TF-SF

click here to download

6000 18000 40 1.40:1 22 0.3 200 2

CD-6000-18000-40-200-NM-NM-SF

click here to download

6000 18000 40 1.40:1 22 0.3 200 2.5

CD-6000-18000-40-200-NM-NM-SF

click here to download

8900 9900 20 1.50:1 12 0.5 75 0.75

CD-1-8900-9900-20-75-SF-SF-SF

click here to download

9000 10000 30 1.40:1 22 0.3 200 2

CD-1-9000-10000-30-200-TF-TF-SF

click here to download

15000 18000 30 1.40:1 22 0.3 200 2

CD-1-15000-18000-30-200-TF-TF-SF

click here to download

 

DUAL DIRECTIONAL COUPLERS

Low Freq. 
(MHZ)
High Freq. (MHz) Coupling
(forward)
(dB)
Coupling
(reverse)
(dB)
VSWR (Main Line) Directivity
(dB)
I.L. (dB) Power Handling (W CW) Peak power
(kW)
P/N - Datasheet
400 2000 40 40 1.3:1 18 0.2 200  

CD-2-400-2000-40-40-200-NF-NF-NF

click here to download

700 4200 50 50 1.25 19 0.4 400  

CD-2-700-4200-50-50-400-NF-NF-SF

click here to download

800 2500 30 30 1.4:1 20 0.2 500 10

CD-2-800-2500-30-30-500-716F-716F-SF

click here to download

800 4000 40 40 1.20:1 20 0.3 300  

CD-2-800-4000-40-40-300-NF-NF-NF

click here to download

800 4000 50 50 1.20:1 20 0.3 300  

CD-2-800-4000-50-50-300-NF-NF-NF

click here to download

2000 4000 30 30 1.4:1 20 0.2 500 10 CD-2-1000-4000-30-30-500-716F-716F-SF
1000 3000 20 20 1.15:1 20 (27 typ) 0.3 300 10

CD-2-1000-3000-20-20-300-TF-TF-TF

click here to download

1000 3000 30 30 1.4:1 20 0.2 500 10

CD-2-1000-3000-30-30-716-716-SF

click here to download

1000 3000 30 30 1.4:1 18 1 1000  

CD-2-1000-3000-30-30-1000-NM-NF-NF

click here to download

1000 4000 20 20 1.15:1 27 0.3 160 3

CD-2-1000-4000-20-20-160-NM-NF-NF

click here to download

1015 1045 40 40 1.3:1 18 0.2 480 6

CD-2-1015-1045-40-480-716-716-SF

click here to download

1200 1400 30 30 1.2:1 20 0.2 600 10

CD-2-1200-1400-30-30-600-NM-NF-NF

click here to download

1200 1400 50 50 1.2:1 25 0.15 1000 10

CD-2-1200-1400-50-50-1000-716F-716F-NF

click here to download

1700 2100 30 30 1.10:1 27 0.1 500  

CD-2-1700-2100-30-30-500-NM-NF-SF

click here to download

1700 2100 50 40 1.20:1 20 0.3 2500  

CD-2-1700-2100-50-40-2500-158-158-NF

click here to download

1000 4000 20 20 1.15:1 27 0.3 500 10

CD-2-1000-4000-20-20-500-NM-NF-NF

click here to download

2000 4000 30 30 1.4:1 20 0.2 500 10

CD-2-2000-4000-30-30-716-716-SF

click here to download

2000 8000 10 10 1.50:1 15 1 30  

CD-2-2000-8000-10-10-30-SF-SF-SF

click here to download

5400 5900 10 10 1.4:1 15 1 30  

CD-2-5400-5900-10-10-30-SF-SF-SF

click here to download

6000 18000 40 40 1.50:1 12 0.5 200 2.5

CD-2-6000-18000-40-40-200-NM-NF-SF

click here to download

8000 12000 35 35 1.50:1 12 0.5 150 0.5

CD-2-8000-12000-35-35-150-TF-TF-SF

click here to download

15000 18000 40 30 1.50:1 20 0.5 120 0.4

CD-2-15000-18000-40-30-120-TF-SF

click here to download

15500 17500 40 30 1.50:1 20 0.5 120 0.4

CD-2-15500-17500-40-30-120-TF-TM-SF

click here to download