Hewlett-packard Company

William E Kunz

Kok Wai Chang

Waguih S Ishak

Giuseppe Miccoli

Kok-Wai Chang

William J Anklam

Varactor diodes having noncommensurate parametric values are utilized within respective cells of a nonlinear transmission line. By the appropriate selection of varactor cell parameters, the configuration of a nonlinear transmission line can be improved to alleviate problems associated with varactor turn-on and punch-through voltage limitations, soliton compression and inefficient use of varactor nonlinearity, reflections from mismatched load and source impedances, and rining and soliton generation.

Nonlinear transmission lines having noncommensurate varactor cells

A magnetostatic wave structure in which magnetostatic wave signals are coupled between discrete magnetostatic wave elements without the use of microstrip transducers. This structure consists of a plurality of blocks of ferrimagnetic material in which each block has an edge close enough to an edge of another block that a magnetostatic wave in the first of these blocks couples across the gap between these two edges into the second of these blocks. Linear and nonlinear configurations are presented that include a band pass filter.

Edge coupler magnetostatic wave structures

A magnetostatic wave resonator having a transducer oriented such that it is tangent at all points to a wavefront of a traveling wave component of a resonant mode of the resonant cavity. In a rectangular cavity of width L.sub.x and length L.sub.y, the transducer is perpendicular to the wavevector k=(m.pi./L.sub.x)e.sub.x +(n.pi./L.sub.y)e.sub.y for some nonzero integers m and n, whereby the transducer optimally transfers energy into the resonant mode that is a linear superposition of travelling waves that includes this wavevector. This enhances coupling into the resonant mode of interest and reduces the amount of coupling into spurious modes.

Diagonally coupled magnetostatic wave resonators

An overcoupled resonator having a resonant cavity defined by a thin film of magnetic material with a pair of end walls parallel to a transducer. Because this resonator is overcoupled, it is suitable for use in a broadband oscillator.

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Foster City, CA, United States of America

William E Kunz