Marki Microwave QH-0R518 3 dB Quadrature (90 degree) Hybrid Coupler

Courtesy of Marki MicrowaveQH-0R518 3 dB Quadrature (90 degree) Hybrid Coupler

Quad Hybrid Features Industry-Best 36:1 BW Ratio

The new QH-0R518 quadrature hybrid coupler achieves an astounding 36:1 bandwidth ratio, from 0.5 GHz to 18 GHz. Featuring excellent amplitude and phase balance, high 20dB isolation, and 20W power handling this 90 degree quad coupler enables a variety of applications such as single sideband conversion, image rejection, IQ modulation, balanced amplifiers and more. Check out our full selection of quadrature hybrids that extend to 67 GHz.

Product Page Datasheet Frequency Band




Amplitude Balance


Phase Balance [degrees] Isolation


QH-0R518  pdf 0.5 to 18 3 ± 0.5 ± 3 20

share post: