Engineering Physics Annotation << Back INVESTIGATION OF ANTENNAS CHARACTERISTICS WITH FERRITE ELEMENTS R.V. PETROV, M.I. BICHURIN, G. SRINIVASAN Here we discuss the design and characterization of tunable microwave antenna with ferrites mounted on the dielectric substrate. The patch antenna consisted of 4x4 cm dielectric substrate on which ferrite elements were placed. We used two kinds of ferrite elements: single crystal yttrium iron garnet films (4?Ms = 1750 G ?H = ?1 Oe) and polycrystalline ferrite cubes (4?Ms = 200 G, ?H = ?40 Oe). The antenna showed the resonance peak at frequency of 2 GHz for the bias field of 260 Oe for the films and 790 Oe for the cubes. The antenna operating frequency could be tuned by 30 MHz for variation in the bias magnetic field. In conclusion the offers are given about using the explored effect. Keywords: antennawith ferrite elements, dielectric substrate, operating frequency. E-mail: initra@narod.ru