Narda-MITEQ 4012C-10 1–2GHz 10 dB Directional Coupler
Mfr. Part #: 4012C-10
Manufacturer: Narda-MITEQ
Product Type: RF/Microwave Directional Coupler
Frequency Range: 1 GHz to 2 GHz
Configuration: Directional, 10 dB Coupling
Description: 1 GHz to 2 GHz 10 dB Directional Coupler, SMA Female, 25 dB Min Directivity, 0.9 dB Max True Insertion Loss, 50 W
The Narda-MITEQ 4012C-10 is a miniature stripline coaxial directional coupler covering 1 to 2 GHz. It provides a nominal coupling value of 10 dB, 25 dB minimum directivity, and low VSWR on both the primary and secondary lines.
The 4012C-10 uses precision SMA female connectors and supports up to 50 W average input power under the manufacturer’s specified source and load matching conditions. Its compact connectorized design makes it suitable for RF signal sampling, forward-power monitoring, test equipment, communication systems, and other L-band applications.
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Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Narda-MITEQ |
| Part Number | 4012C-10 |
| Product Type | Directional Coupler |
| Coupler Type | Miniature Stripline Coaxial |
| Frequency Range | 1 to 2 GHz |
| Nominal Coupling | 10 dB |
| Coupling Variation | ±1.25 dB |
| Frequency Sensitivity | ±0.75 dB, included in coupling specification |
| Minimum Directivity | 25 dB |
| Maximum Insertion Loss, Excluding Coupled Power | 0.20 dB |
| Maximum True Insertion Loss | 0.90 dB |
| Maximum Primary-Line VSWR | 1.10:1 |
| Maximum Secondary-Line VSWR | 1.10:1 |
| Average Input Power | 50 W* |
| Peak Input Power | 3 kW |
| Maximum Reflected Power | 5 W |
| Connector Type | SMA Female |
| Weight | Approximately 0.9 oz / 26 g |
| ECCN | EAR99 |
*The 50 W average input-power rating is guaranteed with source and load VSWR values of 1.2:1.
Understanding the Insertion-Loss Specifications
The Narda-MITEQ datasheet provides two insertion-loss values for the 4012C-10:
| Insertion-Loss Parameter | Maximum Value |
|---|---|
| Insertion loss excluding coupled power | 0.20 dB |
| True insertion loss | 0.90 dB |
The 0.20 dB value represents dissipative loss after excluding the power intentionally transferred to the coupled port. The 0.90 dB true insertion loss includes the effect of the nominal 10 dB coupling factor and is the appropriate value when evaluating the total through-line power reduction.
Typical Applications
Forward RF power monitoring
L-band communication systems
Radar and telemetry equipment
RF signal sampling
Transmitter monitoring and protection
Antenna and feeder-line testing
Signal generators and network analyzers
Laboratory RF measurement systems
