Planar structures for electron acceleration

Recently planar RF structures have gained appreciable interest due to their unique features. They have been proposed for very high frequency applications, where they are ideally suited for fabrication by deep X-ray lithography, for linear colliders and for sheet-beam klystrons. The paper presents structures for the different possible applications: Travelling and standing wave structures, side-coupled structures, structures with a position independent accelerating field and cavities for accelerating wide sheet-beams.