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Directional Couplers

Directional Couplers For Coaxial RF

Directional Couplers For RF Broadband, Octave Band & Multi-Band  Coax

Narda-MITEQ manufactures a wide variety of broadband coaxial directional couplers. We offer coaxial single and dual directional couplers (also know as bi-directional couplers). 

Narda-MITEQ coaxial directional couplers are designed, manufactured and tested in accordance with applicable military and F.A.A. standards for reliability, performance and quality. In order to assure product quality and reliability of our directional couplers, appropriate inspections and tests are made, controls exercised and data gathered to insure customer satisfaction.

The following MIL standards are utilized for all in process controls and final inspection procedures for directional couplers we manufacture: MIL-I-45208, MIL-S-454, MIL-S-202, MIL-S-883 and MIL-S-750.

Our directional couplers will meet operating specifications across the temperature range of -55 degrees C to +100 degrees C. MIL-STD-202.

Octave Band SMA Directional Couplers
Octave Band Directional Coupler - SMA Connector
Octave Band Directional Coupler - SMA Connector

Electrical
RF Connectors:  SMA(F)
RF Power: 50W Average, 3kW peak
Coupling: 6, 10, 20, 30 dB Std., other values available
Mechanical
Construction: Stripline design
Connectors: Stainless Steel
Operating Temp: -55°C to +110°C
Finish: Unique corrosion resistant 316 stainless steel epoxy coating IAW MIL-F-14072 Color Dusty Grey
Applicable Mil-Specs
General: see Narda-MITEQ Mil-Spec reference
Product Specific: see Narda-MITEQ Mil-Spec reference
Freq. (GHz) Coupling
 (dB)		 Freq. Sens.
(+/- dB)		 Direc.
(dB min.)		 Insertion Loss (dB) VSWR max Model No. Outline
Dwg.
Excluding
Coupling		 True Main Sec.
0.43 - 1.0 10+/-1.25
20+/-1.25
30+/-1.25		 1.25
1.25
1.25		 25 0.20
0.15
0.15		 0.80
0.20
0.20		 1.10
1.10
1.10		 1.10
1.10
1.10		 C111L-10
C111L-20
C111L-30		 Fig 1
Fig 1
Fig 2
0.5 - 1.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 25 0.20
0.20
0.15
0.15		 1.80
0.80
0.20
0.20		 1.15
1.10
1.10
1.10		 1.15
1.10
1.10
1.10		 C112-6
C112-10
C112-20
C112-30		 Fig 1
Fig 1
Fig 1
Fig 2
0.8 - 2.2 10+/-1.25
20+/-1.25
30+/-1.25		 1.25
1.25
1.25		 25 0.20
0.15
0.15		 0.80
0.20
0.20		 1.10
1.10
1.10		 1.10
1.10
1.10		 C113L-10
C113L-20
C113L-30		 227646
227646
227646
1.0 - 2.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 25 0.20
0.20
0.15
0.15		 1.80
0.80
0.20
0.20		 1.15
1.10
1.10
1.10		 1.15
1.10
1.10
1.10		 C113-6
C113-10
C113-20
C113-30		 227646
227646
227646
227646
2.0 - 4.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 22 0.20
0.20
0.15
0.15		 1.80
0.80
0.20
0.20		 1.15 1.15 C114-6
C114-10
C114-20
C114-30		 Fig 5
Fig 5
Fig 5
Fig 6
2.6 - 5.2 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 20 0.20 1.80
0.80
0.25
0.20		 1.25 1.25 C114F-6
C114F-10
C114F-20
C114F-30		 Fig 7
Fig 7
Fig 7
Fig 8
4.0 - 8.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 20 0.25 1.90
0.90
0.30
0.25		 1.25 1.25 C115-6
C115-10
C115-20
C115-30		 Fig 7
Fig 7
Fig 7
Fig 8
7.0 - 12.4 6+/-1.00
10+/-1.00
20+/-1.00
30+/-1.00		 0.50 17 0.30 2.00
1.00
0.35
0.30		 1.30 1.30 C116-6
C116-10
C116-20
C116-30		 Fig 7
Fig 7
Fig 7
Fig 8
7.5 - 16.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 12
12
15
15		 0.60 2.20
1.20
0.65
0.60		 1.35 1.40 C116H-6
C116H-10
C116H-20
C116H-30		 Fig 7
Fig 7
Fig 9
Fig 9
12.4 - 18.0 6+/-1.00
10+/-1.00
20+/-1.00
30+/-1.00		 0.50 15 0.60
0.60
0.50
0.50		 2.20
1.20
0.55
0.50		 1.35 1.40 C117-6
C117-10
C117-20
C117-30		 Fig 7
Fig 7
Fig 9
Fig 9
14.0 - 21.0 10+/-1.50
20+/-1.50
30+/-1.50		 0.50 12 0.80
0.70
0.70		 1.50
0.80
0.80		 1.65 1.65 C118-10
C118-20
C118-30		 Fig 7
Fig 9
Fig 9

 

Octave Band, Type-N Directional Couplers
 
Octave Band Directional Coupler - Type-N Connectors
Octave Band Directional Coupler - Type-N Connectors

Electrical
RF Connectors:  TYPE-N(F)
RF Power: 50W Average, 3kW peak
Coupling: 6, 10, 20, 30 dB Std., other values available
Mechanical
Construction: Stripline design
Connectors: Stainless Steel
Operating Temp: -55°C to +110°C
Finish: Unique corrosion resistant 316 stainless steel epoxy coating IAW MIL-F-14072 Color Dusty Grey
Applicable Mil-Specs
General: see Narda-MITEQ Mil-Spec reference
Product Specific: see Narda-MITEQ Mil-Spec reference
Freq. (GHz) Coupling
 (dB)		 Freq. Sens.
(+/- dB)		 Direc.
(dB min.)		 Insertion Loss (dB) VSWR max Model No Outline
Dwg.
Excluding
Coupling		 True Main Sec.
0.5 - 1.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 25 0.20
0.20
0.15
0.15		 1.80
0.80
0.20
0.20		 1.20
1.15
1.15
1.15		 1.20
1.15
1.15
1.15		 C212-6
C212-10
C212-20
C212-30		 Fig 1
Fig 1
Fig 1
Fig 2
1.0 - 2.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 25 0.20
0.20
0.15
0.15		 1.80
0.80
0.20
0.20		 1.20
1.15
1.15
1.15		 1.20
1.15
1.15
1.15		 C213-6
C213-10
C213-20
C213-30		 Fig 3
Fig 3
Fig 3
Fig 3
2.0 - 4.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 22 0.20
0.20
0.15
0.15		 1.80
0.80
0.20
0.20		 1.20 1.20 C214-6
C214-10
C214-20
C214-30		 DWG
DWG
DWG
DWG
2.6 - 5.2 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 20 0.20 1.80
0.80
0.25
0.20		 1.30 1.30 C214F-6
C214F-10
C214F-20
C214F-30		 Fig 8
Fig 5
Fig 5
Fig 5
4.0 - 8.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 20 0.25 1.90
0.90
0.30
0.25		 1.30 1.30 C215-6
C215-10
C215-20
C215-30		 Fig 8
Fig 5
Fig 5
Fig 5
7.0 - 12.4 6+/-1.00
10+/-1.00
20+/-1.00
30+/-1.00		 0.50 17 0.30 2.00
1.00
0.35
0.30		 1.35 1.35 C216-6
C216-10
C216-20
C216-30		 Fig 8
Fig 8
Fig 8
Fig 9
7.5 - 16.0 6+/-1.00
10+/-1.25
20+/-1.25
30+/-1.25		 0.60
0.75
0.75
0.75		 15 0.60 2.20
1.20
0.55
0.50		 1.40 1.45 C216H-6
C216H-10
C216H-20
C216H-30		 Fig 8
Fig 8
Fig 10
Fig 10
12.4 - 18.0 6+/-1.00
10+/-1.00
20+/-1.00
30+/-1.00		 0.50 12
12
15
15		 0.60
0.60
0.50
0.50		 2.20
1.20
0.55
0.50		 1.40 1.45 C217-6
C217-10
C217-20
C217-30		 Fig 8
Fig 8
Fig 10
Fig 10

 

Multi-Band / Wide Band, SMA Directional Couplers
Octave Band Directional Coupler - SMA Connector
Octave Band Directional Coupler - SMA Connector

Electrical
RF Connectors:  SMA(F)
RF Power: 50W Average, 3kW peak
Coupling: 10, 20, dB Std., other values available
Mechanical
Construction: Stripline design
Connectors: Stainless Steel
Operating Temp: -55°C to +110°C
Finish: Unique corrosion resistant 316 stainless steel epoxy coating IAW MIL-F-14072 Color Dusty Grey
Applicable Mil-Specs
General: see Narda-MITEQ Mil-Spec reference
Product Specific: see Narda-MITEQ Mil-Spec reference
Freq (GHz) Coupling
 (dB)		 Freq. Sens
(+/- dB)		 Direc.
(dB min.)		 Insertion Loss (dB) VSWR max Model No. Outline
Dwg.
Excluding
Coupling		 True Main Sec
 0.5 - 2.0 6+/-1.00
10+/-1.00
20+/-1.00
30+/-1.00		 0.75
0.75
0.75
0.80 		 23
23
23
20		 0.35
0.35
0.35
0.40		 2.00
0.90
0.40
0.40 		 1.20 1.20  C122D-6
C122D-10
C122D-20
C122D-30		 Fig 1
Fig 1
Fig 2
Fig 3
 0.6 - 4.0 10+/-1.00  0.75  18  0.40 0.90 1.25 1.30 C122E-10 Fig 11
 0.8 - 2.7 10+/-1.00
20+/-1.00
30+/-1.00		 0.75
0.75
0.80 		 23
23
20		 0.35
0.35
0.40		 0.90
0.40
0.40		 1.20 1.20 C122L-10
C122L-20
C122L-30		 Fig 4
Fig 4
Fig 4
 1.0 - 4.0 6+/-1.00
10+/-1.00
20+/-1.00		  0.50  23  0.35
0.35
0.40		 2.00
0.90
0.45		 1.20 1.20 C123E-6
C123E-10
C123E-20		 Fig 4
Fig 4
Fig 5
 2.0 - 8.0 6+/-1.00
10+/-1.00
20+/-1.00		  0.35  18  0.50
0.35
0.40		 2.20
1.00
0.45		 1.25 1.25 C124F-6
C124F-10
C124F-20		 Fig 6
Fig 6
Fig 7
 4.0 - 12.4 6+/-1.00
10+/-1.00
20+/-1.00		  0.30
0.30
0.40		  17  0.50 2.20
1.20
0.55		 1.30 1.30 C125G-6
C125G-10
C125G-20		 Fig 8
Fig 8
Fig 9
 1.0 - 18.0 6+/-1.00
10+/-1.00
20+/-1.00		 0.75
0.50 
0.50		 12
*
*		 1.20
0.90
0.80		 2.45
1.50
0.90		 1.50
1.40
1.40		 1.55
1.50
1.50		 C123H-6
C123H-10
C123H-20		  
Fig 12
Fig 13
 4.0 - 18.0 6+/-1.00
10+/-1.00
20+/-1.00		  0.50  * 0.90
0.80
0.60		 2.00
1.00
0.70		 1.35
1.35
1.40		 1.40 C125H-6
C125H-10
C125H-20		 Fig 16
Fig 16
Fig 17
 6.0 - 18.0 10+/-1.25
20+/-1.25		  0.60  15 0.60 0.60 1.35 1.40 C126H-10
C126H-20		 Fig 10
18.0 - 40.0 10+/-1.25
20+/-1.25		 0.80  12 1.40 2.00
1.45		 1.90  1.9 **C128K-10
**C128K-20		 Dwg
Dwg
 * Directivity specs as follows:  Low Freq. - 12.4GHz = 15 (dB min.)
From 12.4 - 18.0GHz = 12 (dB min.)

 

 

Multi-Band / Wide Band, Type-N Directional Couplers
Multi Band / Wide Band Directional Coupler - Type-N Connector
Multi Band / Wide Band Directional Coupler - Type-N Connector

Electrical
RF Connectors:  TYPE-N(F)
RF Power: 50W Average, 3kW peak
Coupling: 10, 20, dB Std., other values available
Mechanical
Construction: Stripline design
Connectors: Stainless Steel
Operating Temp: -55°C to +110°C
Finish: Unique corrosion resistant 316 stainless steel epoxy coating IAW MIL-F-14072 Color Dusty Grey
Applicable Mil-Specs
General: see Narda-MITEQ Mil-Spec reference
Product Specific: see Narda-MITEQ Mil-Spec reference
Freq (GHz) Coupling
 (dB)		 Freq. Sens
(+/- dB)		 Direc.
(dB min.)		 Insertion Loss (dB) VSWR max Model No. Outline
Dwg.
Excluding
Coupling		 True Main Sec
0.5 - 2.0 6+/-1.00
10+/-1.00
20+/-1.00
30+/-1.00		 0.75
0.75
0.75
0.80		 23
23
23
20		 0.35
0.35
0.35
0.40		 2.00
0.90
0.40
0.40		 1.25 1.25 C222D-6
C222D-10
C222D-20
C222D-30		 Fig 1
Fig 1
Fig 2
Fig 3
0.6 - 4.0 10+/-1.00 0.75 18 0.40 0.90 1.30 1.35 C222E-10 Fig 11
0.8 - 2.7 10+/-1.00
20+/-1.00
30+/-1.00		 0.75
0.75
0.80		 23
23
20		 0.35
0.35
0.40		 0.90
0.40
0.40		 1.25 1.25 C222L-10
C222L-20
C222L-30		 Fig 4
Fig 4
Fig 4
1.0 - 4.0 6+/-1.00
10+/-1.00
20+/-1.00		 0.50 23 0.35
0.35
0.40		 2.00
0.90
0.45		 1.25 1.25 C223E-6
C223E-10
C223E-20		 Fig 4
Fig 4
Fig 5
2.0 - 8.0 6+/-1.00
10+/-1.00
20+/-1.00		 0.30
0.30
0.40		 20 0.50
0.35
0.40		 2.20
1.00
0.45		 1.30 1.30 C224F-6
C224F-10
C224F-20		 Fig 6
Fig 6
Fig 7
4.0 - 12.4 6+/-1.00
10+/-1.00
20+/-1.00		 0.30
0.30
0.40		 17 0.50 2.20
1.20
0.55		 1.35 1.35 C225G-6
C225G-10
C225G-20		 Fig 8
Fig 8
Fig 9
1.0 - 18.0 10+/-1.00
20+/-1.00		 0.50 * 0.90
0.80		 1.50
0.90		 1.45 1.55 C223H-10
C223H-20		 Fig 12
Fig 13
2.0 - 18.0 6+/-1.00
10+/-1.00
20+/-1.00		 0.50 * 0.90
0.80
0.80		 2.00
1.30
0.90		 1.45
1.50
1.45		 1.55
1.60
1.50		 C224H-6
C224H-10
C224H-20		 Fig 14
Fig 14
Fig 15
4.0 - 18.0 6+/-1.00
10+/-1.00
20+/-1.00		 0.50 * 0.90
0.80
0.60		 2.00
1.00
0.70		 1.40
1.40
1.45		 1.45 C225H-6
C225H-10
C225H-20		 Fig 16
Fig 16
Fig 17
6.0 - 18.0 10+/-1.25
20+/-1.25		 0.60 15 0.60 0.60 1.40 1.45 C226H-10
C226H-20		 Fig 10
* Directivity specs as follows:

Low Freq. - 12.4GHz = 15 (dB min.)
From 12.4 - 18.0GHz = 12 (dB min.)

 

Dual Directional Coaxial Couplers - SMA
Dual Directional Coupler - SMA Connectors
Dual Directional Coupler - SMA Connectors

Electrical
RF Connectors:  SMA(F)
RF Power: 50W Average, 3kW peak
Coupling: 10, 20, 30 dB Std., other values available (10dB coupling adds -0.5dB of Insertion Loss per coupling port.)
Mechanical
Construction: Stripline design
Connectors: Stainless Steel
Operating Temp: -55°C to +110°C
Finish: Unique corrosion resistant 316 stainless steel epoxy coating IAW MIL-F-14072 Color Dusty Grey
Applicable Mil-Specs
General: see Narda-MITEQ Mil-Spec reference
Product Specific: see Narda-MITEQ Mil-Spec reference
Freq (GHz) Coupling
 (dB)		 Freq Sens
(+/- dB)		 Direc.
(dB min.)		 Insertion*
 Loss (dB)		 VSWR max Model No. Outline
Dwg.
Main Sec.
0.5 - 1.0 10+/-1.25
20+/-1.25
30+/-1.25		 0.75 22 0.20 1.15 1.10 C132-10
C132-20
C132-30		 Fig 1
Fig 1
Fig 2
1.0 - 2.0 10+/-1.25
20+/-1.25
30+/-1.25		 0.75 22 0.25 1.15 1.10 C133-10
C133-20
C133-30		 Fig 3
Fig 3
Fig 4
2.0 - 4.0 10+/-1.25
20+/-1.25
30+/-1.25		 0.75 20 0.40
0.30
0.30		 1.20 1.15 C134-10
C134-20
C134-30		 Fig 5
Fig 5
Fig 6
2.6 - 5.2 10+/-1.25
20+/-1.25
30+/-1.25		 0.75 18 0.20 1.30 1.25 C134F-10
C134F-20
C134F-30		 Fig 7
Fig 7
Fig 8
4.0 - 8.0 10+/-1.25
20+/-1.25
30+/-1.25		 0.75 18 0.25 1.35 1.25 C135-10
C135-20
C135-30		 Fig 7
Fig 7
Fig 8
7.0 - 12.4 10+/-1.00
20+/-1.00
30+/-1.00		 0.50 16 0.40
0.30
0.30		 1.35 1.30 C136-10
C136-20
C136-30		 Fig 7
Fig 7
Fig 8
8.0 - 16.0 10+/-1.25
20+/-1.25
30+/-1.25		 0.75 15 0.60
0.50
0.50		 1.40 1.40 C136H-10
C136H-20
C136H-30		 Fig 7
Fig 9
Fig 9
12.4 - 18.0 10+/-1.25
20+/-1.25
30+/-1.25		 0.60 15 0.50 1.40 1.40 C137-10
C137-20
C137-30		 Fig 9
Fig 9
Fig 9

* Excluding Coupled Loss Power