Device Overview

Download PDF

General Description

The CE10-1R540 is a next generation broadband 1.5GHz to 40GHz, 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 CE10-1R540 offers the best directivity, return loss, and coupling accuracy available on the market. Available as both a three port directional coupler and a four port bidirectional coupler, the CE10-1R540 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.

Download s-parameters here
Photo of CE10-1R540

Features

  • Broadband Performance
  • Excellent Coupling Flatness
  • High Directivity
  • Low VSWR
  • Conductive paint minimizes RF leakage

Applications

N/A

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
CE10-1R540TElite 1.5-40 GHz Directional CouplerStandard

REACH

RoHS

ReleasedEAR99
CE10-1R540Elite 1.5-40 GHz Directional CouplerStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2021-12-01Datasheet Initial Release
A2022-04-01Terminated Option Added, Operating and Storage Temperatures Updated

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

2

Port Configuration and Functions

Port Diagram

A side view of the CE10-1R540 package outline drawing is shown below. The CE10-1R540 has input and output ports given in Port Functions. The CE10-1R540 can be used in either the forward or reverse direction corresponding to configuration A and B respectively. For configuration A, input signal into port 1, use port 3 for coupled port, port 2 for isolated port, and port 4 for output port. For configuration B, input signal into port 4, use port 2 for coupled port, port 3 for isolated port, and port 1 for output port.

Diagram of the port configuration for CE10-1R540

Port Functions

Configuration A

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
Port 1Input 2.92FThe input port is DC short to the output port and open to the isolated and coupled ports.Equivalent circuit for the Input
Port 2Isolated 2.92FThe isolated port is DC short to the coupled port and open to the input and output ports.Equivalent circuit for the Isolated
Port 3Coupled 2.92FThe coupled port is DC short to the isolated port and open to the input and output ports.Equivalent circuit for the Coupled
Port 4Output 2.92FThe output port is DC short to the input port and open to the isolated and coupled ports.Equivalent circuit for the Output

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

3

Configuration B

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
Port 1Output 2.92FThe input port is DC short to the output port and open to the isolated and coupled ports.Equivalent circuit for the Output
Port 2Coupled 2.92FThe isolated port is DC short to the coupled port and open to the input and output ports.Equivalent circuit for the Coupled
Port 3Isolated 2.92FThe coupled port is DC short to the isolated port and open to the input and output ports.Equivalent circuit for the Isolated
Port 4Input 2.92FThe output port is DC short to the input port and open to the isolated and coupled ports.Equivalent circuit for the Input

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

4

Specifications

Absolute Maximum Ratings

The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.

ParameterMaximum RatingUnit
RF Power Handling 20W
Minimum Operating Temperature -55°C
Maximum Operating Temperature 100°C
Minimum Storage Temperature -65°C
Maximum Storage Temperature 125°C

Package Information

ParameterDetailsRating
Dimensions-68.62 x 17.53 mm

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

5

Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system

ParameterPort ConfigurationTest ConditionsMinimum
Frequency
(GHz)		 Maximum
Frequency
(GHz)		MinTypMaxUnit
Amplitude Flatness 1--1.5 40-0.250.5dB
Coupling Loss 2--1.5 400.410.460.52dB
Directivity --1.5 401524-dB
Direct Line Insertion Loss -DC-40
- --0.91.7dB
Excess Insertion Loss (dB) 3-DC-40
- --0.421.3dB
IL Corrected Directivity 4--1.5 401626-dB
Impedance --- --50-Ω
Maximum Coupling Deviation --1.5 40-851.7dB
Mean Coupling --1.5 409.51010.5dB
Return Loss --1.5 402030-dB
VSWR -DC-40
- --1.071.22

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

[2] Coupling loss based on average coupling factor.

[3] Excess Insertion Loss = (Input Port to Output Port Insertion Loss) – Coupling Loss.

[4] IL Corrected Directivity = Directivity + Insertion Loss.

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

6

Typical Performance Plots

Insertion Loss, Return Loss, Coupled Port Power, and Directivity

Insertion Loss (dB) graph for CE10-1R540
Return Loss (dB) graph for CE10-1R540
Coupling Ratio (dB) graph for CE10-1R540
Directivity (dB) graph for CE10-1R540
Low Frequency Coupling Ratio (dB) graph for CE10-1R540

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

7

Performance Over Temperature

Insertion Loss (dB) graph for CE10-1R540
Return Loss (dB) graph for CE10-1R540
Coupling Ratio (dB) graph for CE10-1R540
Directivity (dB) graph for CE10-1R540

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

8

Terminated Return Loss and Directivity

Return Loss (dB) graph for CE10-1R540
Directivity (dB) graph for CE10-1R540

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

9

Mechanical Data

Outline Drawing

Download : Outline 2D Drawing Outline 3D Drawing Outline 3D STP

Outline Drawing

Rev: A | Copyright © 2021 - 2022 Marki Microwave LLC.

10