RF Directional Coupler

An RF Directional Coupler is a passive 4-port device which accepts an input RF signal and divides it into 2 output signals. These output signals are quite unequal in amplitude: the outputs differ in power level by the coupling value, in dB. The larger signal is at the main-line output port. The smaller signal is at the coupled port. The fourth port is called the “Isolated” port and is typically terminated with a resistor (when terminated internally, the isolated port is usually unavailable). RF Directional Couplers are used in many circuit and system applications, such as Test & Measurement, RF amplifiers, transmitters and receivers. Richardson RFPD carries a wide assortment of RF Directional Couplers, including coaxial-connectorized, surface mount, and waveguide type units. These products cover frequency ranges from 10 MHz to 18 GHz, including octave and multi-octave ranges in 5dB to 30dB values. Performance grades range from low-cost commercial to rugged military. Specific attributes which are important in selecting the right RF Directional Coupler for your application include: Type (Connectorized, Surface Mount or Waveguide); Power (W) – maximum input level; Frequency Range (GHz) of Operation; Coupling Value/Precision (dB), Directivity (dB); Insertion Loss (dB); Dimensions; and VSWR (ratio).

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Mfg

Anaren (1)
MACOM Technology Solutions (10)
TTM Technologies (1)

Type

Connectorized (10)
Surface Mount (2)

Minimum Frequency (GHz)

0.005 (1)
0.5 (3)
1 (7)
2 (1)

Select Min 0.005 0.5 1 2
Select Max 0.005 0.5 1 2

Maximum Frequency (GHz)

1 (1)
2 (4)
4 (1)
12.4 (1)
18 (5)

Select Min 1 2 4 12.4 18
Select Max 1 2 4 12.4 18

Coupling Value/Precision (dB)

10 (5)
19.75 (1)
20 (5)
30 (1)

Power (W)

3 (1)
50 (9)
100 (1)
150 (1)

Select Min 3 50 100 150
Select Max 3 50 100 150

Dimensions

0.56 in L x 0.35 in W (1)
1.78 in L x 0.375 in W x 0.5 in H (2)
1.78 in L x 0.375 in W x 0.55 in H (1)
2 in L x 0.38 in W x 0.69 in H (1)
3.8 in L x 0.38 in W x 0.69 in H (3)
4.4 in L x 0.38 in W x 0.73 in H (2)
4.9 in L x 1.4 in W (1)

Directivity (dB)

15 (4)
17 (1)
18 (1)
20 (1)
21 (1)
25 (3)
30 (1)

Select Min 15 17 18 20 21 25 30
Select Max 15 17 18 20 21 25 30

Insertion Loss (dB)

0.19 (1)
0.2 (3)
0.3 (4)
0.35 (1)
0.5 (1)
0.9 (2)

Select Min 0.19 0.2 0.3 0.35 0.5 0.9
Select Max 0.19 0.2 0.3 0.35 0.5 0.9

VSWR (-:1)

1.15 (3)
1.28 (1)
1.3 (2)
1.35 (2)
1.4 (2)
1.5 (2)

12 results found.

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	Image	Item	Mfg Part #	Mfg	Description	Datasheet	Availability	Min/Mult	Price (US Stock)	Quantity		ECAD Model	Type	Minimum Frequency (GHz)	Maximum Frequency (GHz)	Coupling Value/Precision (dB)	Power (W)	Dimensions	Directivity (dB)	Insertion Loss (dB)	VSWR (-:1)
		1C0870-20	1C0870-20	Anaren	RF Directional Coupler		21	1	1:   $301.8800	Add To Order	Quote		Connectorized	0.5	4	20	100	4.9 in L x 1.4 in W	20	0.5	1.3
		2020-6605-10	2020-6605-10	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	10/1	10:   $679.1500 25:   Get Quote	Add To Order	Quote		Connectorized	1	2	10	50	1.78 in L x 0.375 in W x 0.5 in H	25	0.2	1.15
		2020-6606-20	2020-6606-20	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	10/1	10:   $800.0400 25:   Get Quote	Add To Order	Quote		Connectorized	1	2	20	50	1.78 in L x 0.375 in W x 0.5 in H	25	0.2	1.15
		2020-6607-30	2020-6607-30	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	10/1	10:   $570.5200 25:   Get Quote	Add To Order	Quote		Connectorized	1	2	30	50	1.78 in L x 0.375 in W x 0.55 in H	25	0.2	1.15
		2026-6001-10	2026-6001-10	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	1	Call RFPD		Quote		Connectorized	1	12.4	10	50	3.8 in L x 0.38 in W x 0.69 in H	18	0.35	1.3
		2026-6004-10	2026-6004-10	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	10/1	10:   $1,089.1500 25:   Get Quote	Add To Order	Quote		Connectorized	2	18	10	50	2 in L x 0.38 in W x 0.69 in H	15	0.3	1.35
		2026-6007-10	2026-6007-10	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	1	1:   $1,945.9800 5:   Get Quote	Add To Order	Quote		Connectorized	1	18	10	50	3.8 in L x 0.38 in W x 0.69 in H	15	0.3	1.4
		2026-6009-20	2026-6009-20	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	1	1:   $1,978.6900 5:   Get Quote	Add To Order	Quote		Connectorized	1	18	20	50	3.8 in L x 0.38 in W x 0.69 in H	17	0.3	1.4
		2026-6010-10	2026-6010-10	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	10/1	10:   $1,256.0900 25:   Get Quote	Add To Order	Quote		Connectorized	0.5	18	10	50	4.4 in L x 0.38 in W x 0.73 in H	15	0.9	1.5
		2026-6012-20	2026-6012-20	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time	1	1:   $3,429.5300 5:   Get Quote	Add To Order	Quote		Connectorized	0.5	18	20	50	4.4 in L x 0.38 in W x 0.73 in H	15	0.9	1.5
		CH-140-PIN	CH-140-PIN	MACOM Technology Solutions	RF Directional Coupler		Request Quote for Lead Time Mfg. Stock: 15	2/1	2:   $881.7000 5:   Get Quote	Add To Order	Quote		Surface Mount	0.005	1	19.75	3		30	0.3	1.35
		XC1500A-20S-R	XC1500A-20S	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	2,000/1	2000:   $4.8000 2500:   $4.6200 5000:   Get Quote	Add To Order	Quote		Surface Mount	1	2	20	150	0.56 in L x 0.35 in W	21	0.19	1.28