Magnetostatic Wave Frequency Selective Limiters

Frequency selective limiters (FSLs), which selectively attenuate above threshold signals while allowing low power signals to pass with little attenuation, have potential application in maintaining the dynamic range of RF receivers in the presence of interference. Stripline FSLs, fabricated using thick yttrium iron garnet (YIG) films, are suitable for broadband, microwave applications but have typical threshold power levels of 0 dBm which is too high for many RF applications. Here magnetostatic wave (MSW) FSLs are described with frequency selectivity and threshold power levels at least 10 times lower than achieved with stripline devices. The performance of an MSW FSL operating in the UHF band will be presented and compared with a model for threshold power. Based on these results the performance limits of FSLs will be discussed with emphasis on reducing threshold power levels significantly below -40 dBm as required in potential GPS applications.

[1]  Catherine Dehollain,et al.  Effectiveness of GPS-jamming and counter-measures , 2012, 2012 International Conference on Localization and GNSS.

[2]  C. Patton,et al.  Anomalous subsidiary absorption in single‐crystal YIG and evaluation of spin‐wave linewidth , 1979 .

[3]  C.A. Balanis,et al.  Effects of auxiliary element gain on the performance of power minimization GPS CRPAs , 2008, 2008 IEEE Antennas and Propagation Society International Symposium.

[4]  S. N. Stitzer,et al.  Frequency selective limiters for high dynamic range microwave receivers , 1993, 1993 IEEE MTT-S International Microwave Symposium Digest.

[5]  P. R. Emtage,et al.  Interaction of magnetostatic waves with a current , 1978 .

[6]  C. Patton,et al.  Theory for the First-Order Spin-Wave Instability Threshold in Ferromagnetic Insulators of Ellipsoidal Shape with an Arbitrary Pumping Configuration , 1969 .

[7]  John D. Oetting,et al.  The Mobile User Objective System , 2011 .

[8]  I. Hunter,et al.  Frequency-Selective Limiters Using Nonlinear Bandstop Filters , 2009, IEEE Transactions on Microwave Theory and Techniques.

[9]  Patton,et al.  Subsidiary-absorption spin-wave-instability processes in yttrium iron garnet thin films: Coupled lateral standing modes, critical modes, and the kink effect. , 1995, Physical review. B, Condensed matter.

[10]  A. K. Ganguly,et al.  Microstrip Excitation of Magnetostatic Surface Waves: Theory and Experiment , 1975 .

[11]  Jay R. Sklar.  Interference Mitigation Approaches for the Global Positioning System , 2003 .

[12]  G. Srinivasan,et al.  ,Anomalous low-frequency butterfly curves for subsidiary and ferromagnetic resonance overlap at 3 GHz , 1991 .

[13]  Yang Xiao-bo.  An Improved GPS Receiver Anti-jammer Algorithm Based on Space-time Adaptive Processing , 2012, 2012 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring.

[14]  Toshihiro Nomoto,et al.  A Signal-to-Noise Enhancer with Extended Bandwidth Using Two MSSW Filters and Two 90 Hybrids , 1995 .

[15]  H. Suhl.  The theory of ferromagnetic resonance at high signal powers , 1957 .

[16]  J. C. Sethares,et al.  Magnetostatic Surface-Wave Transducers , 1979 .

[17]  Robert S. Littlepage,et al.  The Impact of Interference on Civil GPS , 1999 .

[18]  A. Grishin,et al.  Submicron Y3Fe5O12 Film Magnetostatic Wave Band Pass Filters , 2009 .

[19]  J. Adam,et al.  MSW frequency selective limiters at UHF , 2004, IEEE Transactions on Magnetics.

[20]  Ajay Chakrabarty,et al.  Incorporation of Anti-Jamming Techniques in a GPS Receiver , 2008, 2008 International Conference on Signal Processing, Communications and Networking.

[21]  A. K. Ganguly,et al.  Complex Radiation Impedance of Microstrip-Excited Magnetostatic-Interface Waves , 1978 .