Tunable bandpass filter based on single-crystal platelet of BaFe 12 O 19 in multidomain area

Prototype of bandpass filter based on single-crystal platelet of hexaferrite in multidomain area with stripe domain structure in the initial state was proposed for the first time. Designed and experimentally studied filter has 3dB-bandwidth of 80 MHz within frequencies about 47 GHz in absence of external biasing magnetic field. The filter has insertion loss of 52 dB which can be significantly decreased with optimization of conditions for excitation and receiving of magnetostatic oscillations.