Electrodes and Microwave Therapy

Abstract

Abstract 1,188,490. Treating with radiations. K. FRITZ. 16 March, 1967, No. 61188/69. Divided out of 1187019. Heading A5R. [Also in Divisions H4] A microwave radiator device for medical use comprises a flexible rod 26, Fig. 4, of dielectric material, in which is a co-axial conductor 22. Surrounding the rod 26 is a sheath 23 containing an array of circumferential slots 24. Power at a wavelength is fed to the device, the width of the slots 24 being # or 100 less, and their spacing from each other being # or less. The end of the device may be closed 10 by an end plate, when the radiation pattern is lateral as shown at R". If slots are provided in the said end plate, axial radiation also takes place, as shown at R'. A wavetrap 25 prevents radiation towards the input end of the device. In another embodiment (Fig. 1, not shown) a flat flexible box or cavity has an array of slots in a broad wall, and it is excited by a co-axial cable. The cavity may be filled either with a flexible dielectric material or with a number of dielectric foils which can slide over one another. The slots may also be filled with dielectric material.

Inventors

• 👤 Karl Fritz

Bibliographic Details