mmWave Magnetostatic Devices

As magnetostatic wave (MSW) frequency selective limiter technology is becoming more mature in the sub 6 GHz range, there has been recent interest in their application in the mmWave range. Current materials of choice for MSW devices such as YIG require extremely high bias fields to operate in the mmWave range, hence impacting size, weight, and power. In this talk, we will examine materials such as BaM hexaferrites that have much higher magnetic saturation values allowing operation in the mmWave regime as well as contain intrinsic material properties that even allow for self-bias. Furthermore, design parameters for MSW devices will be discussed for various applications.