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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TTM Technologies (12)

Type

Surface Mount (10)

Minimum Frequency (GHz)

0.7 (1)
0.8 (1)
1.7 (2)
1.81 (1)
2.3 (1)
3.3 (3)
3.6 (1)
4.4 (1)

Select Min 0.7 0.8 1.7 1.81 2.3 3.3 3.6 4.4
Select Max 0.7 0.8 1.7 1.81 2.3 3.3 3.6 4.4

Maximum Frequency (GHz)

1 (2)
2 (1)
2.2 (1)
2.3 (1)
2.7 (1)
5 (2)
5.1 (2)
7.1 (1)

Select Min 1 2 2.2 2.3 2.7 5 5.1 7.1
Select Max 1 2 2.2 2.3 2.7 5 5.1 7.1

Coupling Value/Precision (dB)

5 (1)
6.2 (1)
10 (2)
10.2 (1)
20 (4)
30 (2)

Power (W)

2 (2)
7 (2)
10 (2)
20 (2)
25 (2)
45 (1)

Select Min 2 7 10 20 25 45
Select Max 2 7 10 20 25 45

Dimensions

0.08 in x 0.05 in (1)
0.08 x 0.05 (2)
0.08" x 0.05" x 0.03" (1)
0.125 in x 0.1 in (1)
0.25 in L x 0.2 in W (3)
0.25 x 0.20 (1)
2.04mm x 1.29mm x 0.79mm (1)
3.18 mm x 2.54 mm (1)

Directivity (dB)

14 (1)
16.6 (1)
18 (2)
19.7 (1)
20 (5)

Select Min 14 16.6 18 19.7 20
Select Max 14 16.6 18 19.7 20

Insertion Loss (dB)

0.07 (1)
0.1 (2)
0.15 (1)
0.16 (1)
0.2 (1)
0.22 (1)
0.25 (2)
0.3 (1)
0.38 (1)

Select Min 0.07 0.1 0.15 0.16 0.2 0.22 0.25 0.3 0.38
Select Max 0.07 0.1 0.15 0.16 0.2 0.22 0.25 0.3 0.38

VSWR (-:1)

1.152 (1)
1.19 (1)
1.22 (5)
1.24 (1)
1.29 (1)
1.43 (1)

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)
		1P510S	1P510S	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	2,000/2000	2000:   $2.2800 10000:   $2.1800 20000:   $2.0700 30000:   $1.9700 40000:   $1.8800	Add To Order	Quote		Surface Mount	1.7	2	10	20	0.25 in L x 0.2 in W	20	0.25	1.22
		1P620S	1P620S	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	2,000/2000	2000:   $2.2800 10000:   $2.1800 20000:   $2.0700 30000:   $1.9700 40000:   $1.8800	Add To Order	Quote		Surface Mount	2.3	2.7	20	25	0.25 in L x 0.2 in W	20	0.25	1.22
		DC0710J5020AHF	DC0710J5020AHF	TTM Technologies	RF Directional Coupler		24,000	4,000/4000	4000:   $0.7240 20000:   $0.6890 40000:   $0.6570 60000:   $0.6260 80000:   $0.5950	Add To Order	Quote		Surface Mount	0.7	1	20	2	0.08" x 0.05" x 0.03"	19.7	0.22	1.19
		DC1722J5010AHF	DC1722J5010AHF	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	4,000/4000	4000:   $0.6220 20000:   $0.5920 40000:   $0.5640 60000:   $0.5370 80000:   $0.5100	Add To Order	Quote		Surface Mount	1.7	2.2	10	2	2.04mm x 1.29mm x 0.79mm	16.6	0.16	1.24
		JP506S	JP506S	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	2,000/2000	2000:   $2.2800 10000:   $2.1800 20000:   $2.0700 30000:   $1.9700 40000:   $1.8800	Add To Order	Quote			1.81	2.3	6.2	20	0.25 x 0.20	18	0.3
		X4C40K1-20SR	X4C40K1-20SR	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	8,000/8000	8000:   $1.8100 40000:   $1.7300 80000:   $1.6500 120000:   $1.5700 160000:   $1.4900	Add To Order	Quote
		X4C40K1-20SR1	X4C40K1-20SR1	TTM Technologies	RF Directional Coupler		1,438	500/500	500:   $1.9700 2500:   $1.9300 5000:   $1.8900 7500:   $1.8500 10000:   $1.8100	Add To Order	Quote		Surface Mount	3.3	5.1	20	25	3.18 mm x 2.54 mm	20	0.07	1.22
		X4C40L1-30G	X4C40L1-30G-CT	TTM Technologies	RF Directional Coupler		4,000	1	Call RFPD		Quote		Surface Mount	3.3	5	30	7	0.08 x 0.05	20	0.1	1.22
		X4C40L1-30G-CT	X4C40L1-30G-CT	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	0	Call RFPD		Quote		Surface Mount	3.3	5	30	7	0.08 x 0.05	20	0.1	1.22
		X4C45K1-05SR1	X4C45K1-05SR1	TTM Technologies	RF Directional Coupler		500	500/500	500:   $1.9700 2500:   $1.9300 5000:   $1.8900 7500:   $1.8500 10000:   $1.8100	Add To Order	Quote		Surface Mount	3.6	5.1	5	10	0.125 in x 0.1 in		0.2	1.152
		X4C60J1-20G	X4C60J1-20G	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	4,000/4000	4000:   $0.8260 20000:   $0.7870 40000:   $0.7490 60000:   $0.7130 80000:   $0.6770	Add To Order	Quote		Surface Mount	4.4	7.1	20	10	0.08 in x 0.05 in	18	0.15	1.29
		XC0900P-10S	XC0900P-10S	TTM Technologies	RF Directional Coupler		Request Quote for Lead Time	2,000/2000	2000:   $2.6500 10000:   $2.5200 20000:   $2.4000 30000:   $2.2800 40000:   $2.1800	Add To Order	Quote		Surface Mount	0.8	1	10.2	45	0.25 in L x 0.2 in W	14	0.38	1.43