Ridge Waveguides and Passive Microwave Components
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Author(s): J. Helszajn
Publisher: IEE
ISBN: 0832967942
Format: hardback
327pp
Price: £68.00
Review Date: 15 February 2001
Review: The ridge guide consists of a regular rectangular waveguide with one or more metal inserts or ridges. The main advantage of this type of guide over a conventional guide is the wider separation between the dominant mode and the first order one. The propagation constant, attenuation and mode spectrum as well as power:voltage, power:current and voltage:current definitions of impedance, are important properties of the waveguide. Circular polarisation is also covered. Propagation in the ridge waveguide with a dielectric filler between the ridges is investigated using FEM and more complex designs such as quadruple waveguides are included. Passive devices which use these waveguides such as : isolators, phase shifters and circulators, are described.