Pzt - Nicuzn Ferrite Bisexual Composite Materials Research And Application

As society continues to forward to the information technology，require electroniccomponents and modules have high integration， high stability， low loss， andmulti-functional characteristics. Compared to materials with single performance，composite materials will undoubtedly provide a greater degree of freedom in the designof the device，which makes the study of functional composite materials has become animportant direction and hot spots。The LTCC(low temperature co-fired ceramics)technology can improve the packing density of the circuit of passive components. Butdifferent media have different densification rate and firing shrinkage，which will greatlyaffected the device performance. In view of the problems of microwave devices whichhave been produced by different medias，PZT-NiCuZn ferrite composite materials,which have been hoped to be used to make electronic components，have been studied inthis paper，The main content are：1.The electromagnetic properties and microstructure of Bi-substitute and Bioxide-doped NiCuZn ferrite materials were studied. SEM and EDS analysis means areused to investigate microstructure of Bi-substitute and Bi oxide-doped NiCuZn ferritematerials. Then the frequency dependence of complex permeability, quality factor, andpower loss are studied. The electromagnetic properties of Bi-substitute and Bioxide-doped NiCuZn ferrite materials are investigated.2.On basis of Bi-substitute NiCuZn ferrite materials，different dopant improvingthe microstructure and magnetic properties of low temperature co-fired ceramicscomposite materials were investigated. The effects of PbO、Co2O3additive on themicrostructures and electromagnetic properties of low temperature sinteried compositematerials were investigated.3. The prepared PZT-NiCuZn composite materials were chosen to design themultilayer chip LTCC low-pass filter. Using the ADS software to simulate circuit andthe HFSS software to simulate three-dimensional structure，finally design the followlow pass filters which packages are0805type size (2.0mm×1.3mm×0.8mm)：low pass filter was set up with cut off frequency is60MHz，ripple within the pass-band below0.5dB，attenuation exceed15dB at120MHz.