A frequency-selective limiter using magnetoelastic instability

A new device which accomplishes frequency-selective limiting through parallel pumping of subharmonic magnetoelastic waves in YIG is introduced. In addition, the general requirements for any frequency-selective parametric limiter are discussed and shown to be applicable to the magnetoelastic limiter as well as the more conventional spin wave limiter (YIG or ferrite limiter). These general requirements may now be used as guides for developing other frequency-selective parametric limiters.