Integrated Microwave Noise Suppressor Fabricated on Magnetic/Dielectric Composite Ceramic Substrate

摘要

We fabricated coplanar waveguide noise suppressors on anodic aluminum oxide ceramic substrates filled with 20 nm Co ferromagnetic nanowires, and measured the microwave properties of the integrated noise suppressors from 10 MHz to 40 GHz. The working frequency of the device is 16-20 GHz and the transmission coefficient S_(21) of the device is about -5 dB. We analyzed the characteristic impedance matching for the magnetic nanowire-based noise suppressors and provided the theoretical equations to calculate the ferromagnetic resonance frequency of the magnetic nanowires for various cases.