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YIG rod ferrite limiter with extended dynamic range

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1 Author(s)
Dixon, Samuel ; United States Army Electronics Command, Fort Monmouth, NJ

Analytical and experimental results obtained on a C -band ferrite limiter which utilizes a YIG rod inserted down the center of a coupled dielectric resonator bandpass structure are described. This device is aimed at providing receiver protection for communication systems operating in a dense, high signal power environment. By utilizing a long thin single-crystal YIG rod instead of YIG spheres, the dynamic range has been extended from 20 dB to 35 dB. The threshold power varies from 5 dBm at 4.4 GHz to 15 dBm at 5 GHz with an insertion loss of less than 1 dB.

Published in:

Magnetics, IEEE Transactions on  (Volume:14 ,  Issue: 1 )