CIRCULAR COMPOSITE DIELECTRIC WAVEGUIDES AND THEIR APPLICATIONS IN HEll MODE HIGH POWER MICROWAVE HEATING SYSTEMS. DIMITRIOS PAVLIDISx, DAVID SMITH+, and HANS HARTNAGEL+ ABSTRACT - The wave propagation in circular shielded dielectric waveguides consisting of composite PTFE and BaTi03 loaded PTFE material is studied both theoretically and experimentally. Using the developed theory the main para

COMPOUND DRYING: AIR PLUS ELECTROMAGNETIC WAVES By : S. ABSTRACT: LEFEUVRE~ A. PARESI~ M. AHMADPANAH~ B. MANGIN~~ tial A model of drying is obtained by solving the three differenequations of heat, mass transfer and waves. It shows that the elec- tromagnetic waves can act as a "water pump" increasing the migration of water and so increasing the efficiency of air. A new criterium is gi

MICROWAVE POWER BEAMING FOR LONG RANGE ENERGY TRANSFER Ervin J. Nalos, W. W. Lund, Jr., O. Denman, S. M. Rathjen ABSTRACT Current studies by NASA have identified space solar power as a potential long term viable candidate for efficient energy transfer at orbital ranges using a microwave beam. This paper will describe some of the power-aperture relationships leading to a potential feasible de

NEW PROBES FOR ELECTROMAGNETIC FIELDS A. DEFICIS, Microwave E. GIMONET Department, and A. PRIOU ONERA-CERT, x 4025, 31055 Toulouse Cedex, France. B.P. ABSTRACT A new method is described enabling us to detect electromagnetic fields and define them. A miniaturized antenna electrically isolated in space is used therefore introducing only a minimal perturbation of a measured quantity. 

EFFECTS DUE TO MICROWAVES IN AN ENZYME-SUBSTRATE SYSTEM C W SMITH ABSTRACT Changes in the potential difference between electrodes in contact with an enzyme-substrate system due to the presence of microwave radiation are reported. They are measured with a Keithley l50B instrument using a pointplane electrode system across a waveguide and the enzyme and substrate absorbed in a membrane separati

A SIMPLE MICROWAVE GAUSSIAN BEAM-LAUNCHER FOR SELECTIVE PARTIAI,ooSODY EJGJOSURE OF BIOLOGICAL SUBSTANCES Perambur S. Neelakantaswamy + , Krishnakumar GUpta* and Dilip kumar Banerjee" ABSTRACT A simple and compact gaussian beam launcher to produce a focused microwave field for selective Partial-body exPosures in biological experiments is described. The proposed structure consists of a Potter's d



MULTIMODE MICROWAVE SQUARE POWER WAVEGUIDE APPLICATORS FOR MEDICAL APPLICATIONS OF S.S. Stuchly* and M.A. Stuchly** ABSTRACT Great interest in applications of microwave power in cancer therapy through hyperthermia has recently been observed. The basic requirements for microwave power applicators in medical applications are outlined and the presently available designs are reviewed. The d

SLOTTED HEATING Walter CYLINDER INSIDE Buck ANTENNA THE HUMAN FOR SELECTIVE BODY ELECTROMAGNETIC Abstract - High-Frequency-Tumor-Therapy requires heating of a well defined region, whereas the surrounding parts should remain unaffected. This problem can be solved by dielectric HF-heating combined with simultaneous cooling of the probe inside the human body. The requirements and the constructio

PASSIVE SUBCUTANEOUS TEMPERATURE MEASUREMENT FOR INVESTIGATION OF THERMOREGULATION A. MAMOUNI ~, Y. LEROY ~, Y. HOUDAS ~~, Y. MOSCHETTO ~*~ ABSTRACT Passive microwave sensors allow subcutaneous temperature measurements in living tissues. A previously presented method was improved and probes were carried out. The accuracy of this apparatus, which works at 9 GHz with a bandwidth 1 GHz, is teste