What is a 90 Degree Hybrid Coupler?
A 90° Hybrid Coupler is basically a 3 dB, four port directional coupler that equally splits an input signal with 90° phase difference between its output ports. These couplers are also called Quadrature Hybrids as the two output signals are in different quadrants, spaced apart by 90°. When an input signal enters port A, we get signals with equal amplitude at ports C & D with a 90° phase difference. Port B is isolated. These couplers typically have a lower insertion loss than resistive power dividers or combiners.
Key Specifications of 90° Hybrid Couplers
Frequency (MHz): This is the frequency at which the coupler operates.
Average Power (W): The power level up to which the hybrid coupler can maintain its electrical performance.
Insertion Loss (dB): The loss in the signal when the input signal is split into two is known as the insertion loss. The lower the insertion loss the better the performance of the 90 degree hybrids.
Package Type: These are available in a number of package types – Surface Mount, Modules with Connectors – SMA, BNC etc.
everything RF has listed complete catalogs of 90° Hybrid Couplers from the leading manufacturers and made them searchable using a parametric search tool. View product details, download datasheets and get quotes.
