Electromagnetic Hybrid Research Articles

Circular Waveguides Lined with Artificial Anisotropic Dielectrics

The propagation of electromagnetic waves inside circular waveguides lined with artificial anisotropic dielectric is investigated. Our investigation shows that the dominant hybrid electromagnetic (HEM/sub 11/ ) mode possesses a transverse deflecting field over the aperture of the structure and can be used as a transverse deflecting mode in a particle separator with ultrahigh energy. Expressions for power, attenuation, and transverse shunt impedance are obtained, and the effects of changing in loading on these various quantities are studied and presented in graphs.

Amplification of acoustic surface waves by means of a broadband hybrid-junction transducer and negative-resistance circuits

The letter describes an interdigital surface-wave transducer with properties closely analogous to those of an electromagnetic quadrature hybrid junction. If the two electrical ports of such a hybrid-junction transducer are terminated in appropriate negative resistances, transmission gain is observed for an incident acoustic surface wave.