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Aperture Coupling Between Dielectric Image Lines

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2 Author(s)

Aperture coupling between dielectric image lines is used develop a design technique for directional couplers at millimeter-wave frequencies. Expressions for coupling coefficients and directivity, employing coupling between image lines through apertures in the common ground plane are developed. The design procedure is illustrated by application 10-, 20-, and 30-dB directional couplers in rectangular image lines with circular aperture coupling.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:29 ,  Issue: 9 )