30W SMA Directional Coupler 20dB 0.5–18GHz SMA-Female Connectors

No.TWDC-30S20-0.5-18G

Key Features & Benefits

Ultra-Wideband Coverage (0.5–18 GHz): Seamlessly operates across L, S, C, X, and Ku bands in a single compact device.
High Average Power Rating: Handles up to 20 Watts of forward CW power, making it ideal for continuous monitoring in high-power RF loops.
Precision SMA-Female Connectors: 50 Ω coaxial interfaces designed for reliable high-frequency measurements up to 18 GHz.
High Directivity: Ensures accurate separation between forward and reflected signals for precise VSWR and power measurements.
Low Insertion Loss: Minimizes main-line signal attenuation across the entire frequency range.
Rugged & Compact Construction: Designed for seamless integration into test racks, radar subsystems, and base stations under harsh thermal conditions (-40°C to +85°C).

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Description

Product Overview:
Engineered for precision power monitoring and signal sampling across ultra-wide bandwidths, our 20W SMA Directional Coupler (0.5–18 GHz) delivers exceptional performance from 500 MHz to 18 GHz. This robust 50 Ω coaxial component provides reliable forward and reflected power sampling with low insertion loss, excellent directivity, and flat coupling flatness across multi-octave frequency sweeps.

Housed in a rugged passivated aluminum enclosure with precision SMA-female connectors and gold-plated center pins, this directional coupler is built to withstand rigorous laboratory, automated test equipment (ATE), and defense environments.

SN	Parameters	Specifications
1	Frequency Range	500～18000 MHz
2	Insertion Loss	≤ 1.2dB
3	VSWR Primary	Typ.1.18/Max 1.5
4	VSWR Secondary	Typ.1.18/Max 1.5
5	Directivity	Min.12dB
6	Frequency Sensitivity	Type:±0.9dB/Max.±1dB
7	Nominal Coupling	20 ±1dB
8	Impedance	50 Ohms
9	Power Rating	30W
10	Input / Output Connectors	SMA-Female
11	Operation Temperature	-45℃ ~ +85℃

Request a Quote or Custom Configuration
Need custom frequency bands, alternative connector configurations, or tailored power handling specifications for your international project?
Contact our engineering and sales team today to discuss your requirements or request a datasheet