MAGNETOELECTRIC MICROWAVE PHASE SHIFTERS

We discuss magnetoelectric microwave devices. Combination of propertie s of ferrite and ferroelectric, and also the properties, induced by ma gnetoelectric (ME) interaction, find wide functional opportunities for creation of devices on the basis of ME materials. ME materials can be used for design of microwave phase shifters. Phase shifters will be m ost simply realised on effect of shift of a line of ferromagnetic reso nance (FMR) under the action of a control electrical field. We shall c onsider an example of ME microwave through-passage microstrip phase sh ifter. As a working element a composite material, consisting of 95% fr om yttrium-iron garnet and of 5% from piezoceramics PZT is used. Phase shifters on ME materials have high performance, adaptability to manuf acture, electromagnetic compatibility, radiating durability, thermosta bility, low power in control circuit.