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The electrical specifications apply for configuration A at TA=+25°C in a 50Ω system. Min and Max limits are guaranteed at TA=+25°C.

Parameter

Frequency (GHz)

Min

Typ.

Max

Average Coupling Factor (dB)

1.5-20

9.5

10.0

10.5

Coupling Loss (dB) [1]

1.5-20

.41

.46

.52

Direct Line Insertion Loss (dB)

DC-20

 

.75

1.1

Excess Insertion Loss (dB)4

DC-20

 

.23

.75

Amplitude Flatness (dB)5

1.5-20

 

±.25

±.50

Maximum Coupling Deviation (dB)

1.5-20

 

±.85

±1.70

Standard Directivity (dB)

1.5-20

20

30

 

IL Corrected Directivity (dB)6

1.5-20

22

32

 

Pass Band Return Loss (dB)

DC-20

20

30

 

Pass Band VSWR

DC-20

 

1.07

1.22

Impedance (Ω)

 

 

50

 



3 Coupling loss based on average coupling factor – visit our website to learn more.

4 Excess Insertion Loss = (Input Port to Output Port Insertion Loss) – Coupling Loss.

5 Amplitude Flatness = Median value of ABS(Measured Coupling Power – Average Coupling Factor).

6 IL Corrected Directivity = Directivity + Insertion Loss.

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CE10-1R520T Coupler Package Diagram

The CE10-1R520T is a next generation broadband 1.5GHz to 20GHz, 10dB directional coupler from the Marki Elite Series. Conductive paint is applied to all Elite Series products to reduce EMI/RFI leakage and susceptibility. The CE10-1R520T offers the best directivity, return loss, and coupling accuracy available on the market. Available as a three port directional coupler with included 50Ω termination on the isolated port, the CE10-1R520T is an exceptional choice for broadband return loss measurements, power leveling, and signal monitoring applications. Sophisticated neural network design techniques combined with deep circuit knowledge and triplate stripline construction allow the Marki Elite Series of Couplers to provide superior performance to all other directional couplers available.

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