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Broadside Coupler Channels 1 To 10 GHz (.PDF)

Quadrature hybrid couplers are useful in communications systems and measurement applications. Many 3-dB, 90-deg. hybrid directional couplers have been developed for narrowband use but, with growing interest in ultrawideband (UWB) communications, a proposed 90-deg. quadrature hybrid coupler has been designed for use from 1 to 10 GHz...

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