Mechanical Filters-A Review of Progress

This paper is areview of electromechanical bandpass filter, resonator, and transducer development. Filter types discussed include intermediate and low-frequency configurations composed of rod, disk, and flexure-barresonatorsandmagnetostrictiveferrite and piezoelectric ceramictransducers. The resonators and transducers are analyzed in terms of theirdynamicandmaterial characteristics. The paper also includes methods of realizingattenuation poles at real and complex frequencies. The last section is a look at future

[1]  George S. Moschytz,et al.  Inductorless filters: a survey I. Electromechanical filters , 1970, IEEE Spectrum.

[2]  Nobumasa Kobori,et al.  High Frequency Crystal Monolithic (HCM) Filters , 1969 .

[3]  T. Yano,et al.  Analysis of flexural vibrations of a circular disk , 1968, IEEE Transactions on Sonics and Ultrasonics.

[4]  M. Konno,et al.  Electromechanical Filter Composed of Transversely Vibrating Resonators for Low Frequencies , 1967 .

[5]  R. Johnson.  A twin tee multimode mechanical filter , 1966 .

[6]  M. Borner.  Magnetische werkstoffe in elektromechanischen resonatoren und filtern , 1966 .

[7]  R.A. Johnson,et al.  A Mechanical Filter Having General Stopband Characteristics , 1966, IEEE Transactions on Sonics and Ultrasonics.

[8]  R. A. Sykes,et al.  High Frequency Monolithlc Crystal Filters with Posslble Application to Single Frequency and Single Side Band Use , 1966 .

[9]  Hisashi Nakamura,et al.  Equivalent Electrical Network for the Transversely Vibrating Uniform Bar , 1965 .

[10]  M. Börner,et al.  Progress in electromechanical filters , 1965 .

[11]  R. Johnson,et al.  A Single-Sideband, Disk-Wire Type Mechanical Filter , 1964 .

[12]  Y. Nakazawa,et al.  High Frequency Crystal Electromechanical Filters , 1962 .

[13]  W. P. Mason,et al.  A Compact Electromechanical Band-Pass Filter for Frequencies Below 20 Kilocycles , 1960, IRE Transactions on Ultrasonic Engineering.

[14]  D. Berlincourt,et al.  Transducer Properties of Lead Titanate Zirconate Ceramics , 1960, IRE Transactions on Ultrasonic Engineering.

[15]  R. Saal,et al.  On the Design of Filters by Synthesis , 1958 .

[16]  S. Cohn.  Direct-Coupled-Resonator Filters , 1957, Proceedings of the IRE.

[17]  Morio Onoe,et al.  Contour Vibrations of Isotropic Circular Plates , 1956 .

[18]  Roshan Sharma.  Equivalent Circuit of a Resonant, Finite, Isotropic Elastic Circular Disk , 1956 .

[19]  C. M. V. D. Burgt.  Performance of Ceramic Ferrite Resonators as Transducers and Filter Elements , 1956 .

[20]  Raymond D. Mindlin,et al.  AXIALLY SYMMETRIC FLEXURAL VIBRATIONS OF A CIRCULAR DISK , 1953 .

[21]  G. A. Campbell,et al.  Physical theory of the electric wave-filter , 1922 .

[22]  G. Gladwell,et al.  Finite Element Analysis of Flexure-Type Vibrators with Electrostrictive Transducers , 1970, IEEE Transactions on Sonics and Ultrasonics.

[23]  R. Johnson.  Electrical circuit models of disk-wire mechanical filters , 1968 .

[24]  H. Albsmeier.  Über Antriebe für elektromechanische Bandpässe mit piezoelektrischen Wandlern , 1965 .

[25]  F. Künemund,et al.  Mechanische Filter mit Biegeschwingern , 1964 .

[26]  W. Poschenrieder,et al.  Das elektromechanische Quarzfilter - ein neues Bauelement für die Nachrichtentechnik , 1963 .

[27]  H. Yoda.  Quartz Crystal Mechanical Filters , 1959 .

[28]  J. C. Hathaway,et al.  Survey of Mechanical Filters and Their Applications , 1957, Proceedings of the IRE.

[29]  Harrison,et al.  Methods of high quality recording and reproducing of music and speech based on telephone research , 1926, Journal of the A.I.E.E..