Experimental Study of Bandpass Filter, Tunable in Wide Frequency Range by Electromagnetic System, Containing Samarium Cobalt Permanent Magnets

Abstract

The sample of a bandpass filter tunable in a wide frequency band by an electromagnetic system containing samarium cobalt permanent magnets has been experimentally investigated. Without amperage in windings of small-sized electromagnetic system, the operating frequency of the filter was 5880 MHz. Full range of filter sample adjustment when the power supply voltage change from −4.5 V to +4.6V is 4794 ÷6689 MHz. Tuning bandwidth is 1895 MHz.