About our company
At RF Systems, there has been fundamental research over a period of several years into rare earth's and the behaviour of mixtures of oxides and carbonates of metals as zinc, manganese, nickel, cobalt, lithium, tin, iron and other elements. RF Systems is able to design ferrites and powdered irons with very special properties. This has finally led to RF Systems' Magnetic Transfer technology, based on special ferrites and powdered irons which can transfer RF energy only by a magnetic field, with extremely low losses. This material is used in the Power - Isolator, a noise reducer and lightning protector with completely separated antenna and receiver circuits. Polycrystalline ferrite is used for ferrite cores whereby the initial permeability changes with the frequency. This material is used, for example, in the Magnetic Longwire Balun, EMF and MT range of antennas and in the SP - 3, an antenna splitter with the exceptional frequency range of 10 MHz to 2500 MHz. The photo shows one of the steps in the manufacturing process of the cores. After measurement, the cores are wound with Teflon covered silver wire.
Some transformers based on these special ferrites are extremely small in order to obtain low losses at ultra high frequencies. The directional couplers as used in the SP - 3 splitter are smaller than a grain of rice, wound with insulated wire thinner than a hair. For the production of these micro-miniature devices an optical analyser is used. In the lower right-hand corner of the screen the ends of the tweezers can be seen, which are just 0.3 mm diameter.
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