The microwave permeability of composites filled with pieces of thin film-shaped ferromagnetic inclusions with in-plane anisotropy is under experimental study. The samples are made of patterned multilayer Fe films stacked together to comprise a bulk composite. The microwave permeability is measured in the frequency range of 0.1 to 10 GHz and discussed in terms of constraints restricting the microwave performance of such composites. The technology suggested allows a composite sample to be produced with the permeability of 2.9 and low magnetic loss at frequencies below 1 GHz, the volume fraction of Fe being as low as 0.77 percent. Such composites can be useful in the design of microwave inductors, miniaturized wideband antennas, etc.
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