US Patents

Selected Reference Publications:

Engineering & Applied Science :

1.        An Empirical Algorithm for Power Analysis in Deep Submicron Electronic Designs

 M. Huang, R.S. Kwok, S.P. Chan

       VLSI Design, Vol.14, p.219-227 (2002)

 

2.     A Simplified and Accurate Power Analysis Method for Deep Submicron ASIC Designs

 M. Huang, R.S. Kwok, S.P. Chan

       IEE Proc. Circuits, Devices and Systems, Vol.147, p.175-182 (2000)      

 

3.     Dual Mode Helical Resonators

        R.S. Kwok, S.J. Fiedziuszko

        IEEE Trans. MTT, Vol. 48, p.474-477 (2000)

 

4.     Helical Ceramic Resonator Structures

        R.S. Kwok, S.J. Fiedziuszko

        IEEE MTT-S Digest, Vol. 3, p.1033-1036 (1999)

 

5.     Low-Profile Multilayer YBCO/MgO Filter Module

        R.S. Kwok, S.J. Fiedziuszko, F.A. Miranda, N.C. Varaljay, C. Mueller

        IEEE MTT-S Digest, Vol. 3, p.1377-1380 (1999)

 

6.     Superconducting Quasi-Lumped Element Filter on R-Plane Sapphire

        R.S. Kwok, D. Zhang, C. Huang, T.S. Kaplan, J. Lu, G.C. Liang

        IEEE Trans. MTT, Vol. 47, p.586-591 (1999)

 

7.     Characterization of High-Q Resonators for Microwave Filter Applications

        R.S. Kwok, J.F. Liang

        IEEE Trans. MTT, Vol. 47, p.111-114 (1999)

 

8.     Miniaturized Multilayer Filters Fabricated with YBa2Cu307-x on LaAlO3 and MgO substrates

        F.A. Miranda, R.S. Kwok, G.V. Leon, M.S. Demo, D.Y. Bohman, S.J. Fiedziuszko

        Advances in Cryogenic Engineering  Materials, Vol. 44, ed. L. Summers, Plenum Publishing, (1998)

 

9.     Novel Helical Resonator Filter Structures

        S.J. Fiedziuszko, R.S. Kwok

        IEEE MTT-S Digest, Vol. 3, p.1323-1326 (1998)

 

10.    Miniaturized HTS/Dielectric Multilayer Filters for Satellite Communications

        R.S. Kwok, S.J. Fiedziuszko, F.A. Miranda, G.V. Leon, M.S. Demo, D.Y. Bohman

        IEEE Trans. Appl. Superconductivity Vol. 7, p.3706-3709 (1997)

 

11.   Advanced Filter Technology in Communication Satellite Systems

        R.S. Kwok, S.J. Fiedziuszko

        Proc. ICCASS, p.155-158 (1996)

 

12.   Low Loss Multiplexers with Planar Dual Mode HTS Resonators

        S.J. Fiedziuszko, J.A. Curtis, S.C. Holme, R.S. Kwok

        (Invited Paper) IEEE Trans. MTT , Vol. 44, p.1248-1257 (1996)

 

13.   Fully automated system for simultaneous measurement of thermal conductivity and heat capacity from 4 to 300K

        R.S. Kwok, S.E. Brown

        Rev. Sci. Instrum. Vol. 61, p.809-813 (1990)

Solid State Physics - Charge-Density-Wave materials :

14.   Fluctuations and Thermodynamics of the Charge-Density-Wave Transition

        R.S. Kwok, G. Gruner, S.E. Brown

        Phys. Rev. Lett. 65, 365 (1990)

        Phys. Rev. Lett. 66, 1645 (1991)

 

15.   Thermal conductivity of the Charge-Density-Wave systems K0.3MoO3 and (TaSe4)2I near the Peierls transition

        R.S. Kwok, S.E. Brown

        Phys. Rev. Lett. 63, 895 (1989)

 

16.   Thermal conductivity of potassium blue bronze in the non-ohmic regime

        R.S. Kwok, G. Gruner, S.E. Brown

        Solid State Commun. 72, 513 (1989)

 

17.   Thermal conductivity of the quasi-one-dimensional conductors

        R.S. Kwok, S.E. Brown

        Fizika 21, Suppl. 3, 131 (1989)

Macroscopic Properties of High Temperature Superconducting Copper-Oxides :

18.   Anisotropic electronic and thermal transport properties of lightly oxygen-doped La2-xCuO4-d

        M.F. Hundley, R.S. Kwok, S-W. Cheong, J.D. Thompson, Z. Fisk

        Physica C 172, 455 (1991)

 

19.   Evidence for electronic localization in YBa2-yLayCu30x

        R.S. Kwok, J.D. Thompson, C.B. Pierce, J.L. Smith, Z. Fisk, J.A. O'Rourke

        Phys. Lett. A 127, 228 (1988)

 

20.   Perspective on RBa2Cu30x materials from oxygen deficiency studies

        R.S. Kwok, S-W. Cheong, J.D. Thompson, Z. Fisk, J.L. Smith, J.O. Willis

        Physica C 152, 240 (1988)

 

21.   Electronic anisotropy in single crystalline La2Cu04

        S-W. Cheong, Z. Fisk, R.S. Kwok, J.P. Remeika, J.D. Thompson, G. Gruner

        Phys. Rev. B 37, 5916 (1988)

 

22.   X-ray spectroscopy of EuBa2(Cu1-yZny)307-x : suppression of superconductivity

        S. Horn, K. Reilly, Z. Fisk, R.S. Kwok, J.D. Thompson, H.A. Borges, C.L. Chang, M.L. denBoer

        Phys. Rev. B 38, 2930 (1988)

 

23.   Normal-state properties of ABa2Cu307-y compounds (A = Y and Gd) :  Electron-electron correlations

        S-W. Cheong, S.E. Brown, Z. Fisk, R.S. Kwok, J.D. Thompson, E. Zirngiebl, G. Gruner, D.E. Peterson, G.L. Wells, R.B. Scwarz, J.R. Cooper

        Phys. Rev. B 36, 3913 (1987)

 

24.   Resistivity of EuBa2(Cu1-yZny)30x as a function of temperature, magnetic field, pressure & Zn concentration

        H.A. Borges, G.L Wells, S-W. Cheong, R.S. Kwok, J.D. Thompson, Z. Fisk, J.L. Smith, S.B. Oseroff

        Physica 148 B, 411 (1987)

 

25.        Thermoelectric power in the normal state of the high TC superconductors RBa2Cu30x  (R = Yittrium or Rare Earth)

        R.S. Kwok, S.E. Brown, J.D. Thompson, Z. Fisk, G. Gruner

        Physica 148 B, 346 (1987)

 

26.   Normal-state properties of Cu-O superconductors

        J.D. Thompson, Z. Fisk, H.A. Borges, S.E. Brown, S-W. Cheong, G. Gruner, R.S. Kwok, J.O. Willis

        JJAP Suppl. 26, 2041 (1987)

 

27.   Comparison of the pressure dependencies of the TC  in the 90K superconductors RBa2Cu30x  (R = Gd, Er & Yb) & YBa2Cu30x

        H.A. Borges, R.S. Kwok, J.D. Thompson, G.L. Wells, J.L Smith, Z. Fisk, D.E. Peterson

        Phys. Rev. B 36, 2404 (1987)

Muon-Spin-Rotation Studies on Superconductivity and Magnetism:

28.   mSR investigation of magnetism and superconductivity in (Y1-xPrx)Ba2Cu3O7

        D. W. Cooke, R.S. Kwok, M.S. Jahan, R.L. Lichti, T. Adams, C. Boekema, W.K. Dawson, A. Kebede, J.  Schwegler, J.E. Crow, T. Mihalisin

        Physica B 163, 675 (1990)

 

29.   Magnetic ordering in (Y1-xPrx)Ba2Cu3O7 as evidenced by muon-spin-relaxation

        D. W. Cooke, R.S. Kwok, M.S. Jahan, R.L. Lichti, T.R. Adams, C. Boekema, W.K. Dawson, A. Kebede, J. Schwegler, J.E. Crow, T. Mihalisin

        J. Appl. Phys. 67, 5061 (1990)

 

30.   Anisotropy in c-axis oriented YBa2Cu3O7-d

        R.L. Lichti, T.R. Adams, D.W. Cooke, R.S. Kwok, C. Boekema, W.K. Dawson, A. Kebede, J.  Schwegler, J.E. Crow , T. Mihalisin

        Hyperfine Interact. 63, 73 (1990)

 

31.   Transerve- and zero-field mSR investigation of magnetism and superconductivity in (Y1-xPrx)Ba2Cu3O7

        D.W. Cooke, M.S. Jahan, R.S. Kwok, R.L. Lichti, T.R. Adams, C. Boekema, J.C. Lam, D.E. Farrell, N. Bansal

        Hyperfine Interact. 63, 213 (1990)

 

32.   Magnetic ordering in (Y1-xPrx)Ba2Cu3O7 as observed by muon-spin-rotation

        D. W. Cooke, R.S. Kwok, R.L. Lichti, T. Adams, C. Boekema, W.K. Dawson,  A. Kebede, J. Schwegler, J.E. Crow, T.  Mihalisin

        Phys. Rev. B 41, 4801 (1990)

 

33.   Muon-spin-relaxation study of magnetism in ErBa2Cu3O6.2

        R.L. Lichti, K-C.B. Chan, C. Boekema, W. Dawson, J. Flint, D.W. Cooke, R.S. Kwok, J.O. Willis

        J. Appl. Phys. 67, 5055 (1990)

 

34.   Muon spin rotation measurement of magnetic field penetration and flux trapping in superconducting EuBa2Cu3Ox

        D.W. Cooke, R.L. Hutson, R.S. Kwok, M. Maez, H. Rempp, M.E. Schillaci, J.L. Smith, J.O. Willis, R.L. Lichti, K-C.B. Chan, C. Boekema, S Weathersby, J. Flint, J. Oostens

        Phys. Rev. B 39, 2748 (1989)

 

35.   Muon spin depolarization in Gd & EuBa2Cu30x

        D.W. Cooke, R.L. Hutson, R.S. Kwok, M. Maez, H. Rempp, M.E. Schillaci, J.L. Smith, R.L. Lichti, K.C. Chan, C. Boekema, S. Weathersby, J. Oostens

        High Temperature Superconductivity - the first two years, p.125, ed. R. Metzger (Gordon & Breach, New York, 1989)

 

36.   Muon depolarization & magnetic field penetration depth in superconducting GdBa2Cu30x

        D.W. Cooke, R.L. Hutson, R.S. Kwok, M. Maez, H. Rempp, M.E. Schillaci, J.L. Smith, J.O. Willis, R.L. Lichti, K-C.B. Chan, C. Boekema, S Weathersby, J. Flint, J. Oostens

        Phys. Rev. B 37, 9401 (1988)

Condensed Matter Physics :

37.    Thermodynamics and Transport in Ce3Bi4Pt3 and related materials

        J.D. Thompson, W.P. Beyermann, P.C. Canfield, Z. Fisk, M.F. Hundley, G.H. Kwei, R.S. Kwok, A. Lacerda, J.M. Lawrence, A. Severing

        Transport and Thermal Properties of f electron systems, ed. H. Fujii, T. Fujita and G. Oomi, Plenum Publishing (1992)

 

38.   Thermal conductivity of single crystal l-alanine

        R.S. Kwok, P. Maxton, A. Migliori

        Solid State Commun. 74, 1193 (1990)

 

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