Low Loss Couplers

Low-Loss, High Directivity, High Power Couplers for Load Pull and Other Power Applications


  • High Power Handling For All Power Applications
  • High Directivity For Improved Accuracy
  • Low Insertion Loss For Maximum Performance
  • Broadband Frequency Coverage For All Popular Applications
  • Excellent VSWR For Improved Match


  • Amplifier Power Monitoring / Integrated Amplifier Modules
  • High-Power Base Station Integration
  • Test and Measurement (Load Pull, Antenna Test, General Lab...)

Available Models

Swipeable Content
Connector Coupling Ports Frequency Range1 (GHz) Insertion Loss at Fmax Directivity Coupling Power Handling
Input Port Output Port
LLC18-7 7mm 7mm 3.5mm Female 0.6 - 8.0
8.0 - 18.0
0.15 dB
0.25 dB
15 db
10 dB
30 dB2
±3 dB
500W CW / 2KW Peak
LLC18-N-FF Type N Female Type N Female 0.18 dB
0.25 dB
LLC18-N-MF Type N Male Type N Female
LLC18-N-MM Type N Male Type N Male
LLC34-35-FF 3.5mm Female 3.5mm Female 2.92mm Female 2.0 - 26.5
26.5 - 34.0
0.30 dB 14 dB
10 dB
150 W CW / 500 W Peak
LLC34-35-MF 3.5mm Male 3.5mm Female
LLC34-35-MM 3.5mm Male 3.5mm Male

1 Usable from 0.1 GHz with increased coupling.
2 ±6 dB 0.6 - 0.8 GHz for LLC18 and 2.0 - 3.0 GHz for LLC34.

Low Loss Couplers Models

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Application Notes and Data Sheets


LLC Low Loss Couplers 2K-001

Maury Application Notes Library

Maury Software and System Application Notes. Maury Application Notes Library