Qingsan Coupler Selection Guide: Exceptional Performance, Budget-Friendly Price!

In RF front-end design, couplers are critical components for applications like signal monitoring, power control, and feedback loops. Leveraging mature manufacturing processes and a stable supply chain, Qingsan launches a series of directional couplers covering a wide frequency band of 5MHz – 3250MHz. Our performance rivals international brands (like Mini-Circuits and Macom), while offering significantly more competitive pricing, making them the high-value choice for commercial markets!

• From low-frequency 5–200MHz to high-frequency broadband 5–2350MHz, our product line fully meets the mainstream frequency requirements of civilian wireless communications, IoT, and test equipment.

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• Offering various coupling specifications from 6dB to 26dB, catering to diverse application needs from weak signal extraction to main path power monitoring.

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• Providing models for both the standard 50Ω system and the 75Ω system widely used in video transmission and CATV, offering a one-stop solution for impedance matching.

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• Each of our models is explicitly designed as a counterpart to classic models from industry giants like Mini-Circuits, Macom, and MiniRF. This means you can replace them directly without modifying your PCB layout.

Selection Examples