Microwave Planar Varactor Tuned Bandpass Filters: Historical Overview

This paper overviews the history of a class of varactor tuned bandpass filters. Since the miniaturization as well as the high performance of the tunable bandpass filters is required for the next generation mobile communication systems, the discussion is focused on the various planar type tunable filters including active configurations. Brief design concepts of various tunable filter configurations as well as their characteristics are discussed.

[1]  Tatsuo Itoh,et al.  Tunable active bandpass filters using three-terminal MESFET varactors , 1992, 1992 IEEE Microwave Symposium Digest MTT-S.

[2]  Kari Stadius,et al.  Active MMIC filters with negative resistance compensation , 1998 .

[3]  Sang-Won Yun,et al.  Varactor-tuned active bandpass filter with low noise performance , 2004 .

[4]  G. L. Matthaei,et al.  DESIGN OF MICROWAVE FILTERS, IMPEDANCE-MATCHING NETWORKS, AND COUPLING STRUCTURES. VOLUME 2 , 1963 .

[5]  Sang-Won Yun,et al.  Varactor-tuned hairpin bandpass filter with an attenuation pole , 2005, 2005 Asia-Pacific Microwave Conference Proceedings.

[6]  Shyh-Kang Jeng,et al.  K-band MMIC active band-pass filters , 2005 .

[8]  S. Kumar.  Electronically tunable ring resonator microstrip and suspended-substrate filters , 1991 .

[9]  M.B. Steer,et al.  An electronically tunable microstrip bandpass filter using thin-film Barium-Strontium-Titanate (BST) varactors , 2005, IEEE Transactions on Microwave Theory and Techniques.

[10]  I. Vendik,et al.  Design of tunable ferroelectric filters with a constant fractional band width , 2001, 2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157).

[11]  I. Vendik,et al.  Figure of Merit of Tunable Ferroelectric Planar Filters , 2003, 2003 33rd European Microwave Conference, 2003.

[12]  S. R. Chandler,et al.  Active varactor tunable bandpass filter , 1993, IEEE Microwave and Guided Wave Letters.

[13]  Gabriel M. Rebeiz,et al.  A varactor-tuned RF filter , 2000 .

[14]  J. Uher,et al.  Magnetically tunable rectangular waveguide E-plane integrated circuit filters , 1988 .

[15]  S. Kumar,et al.  A broadband tunable combline filter using active devices , 1993, IEEE WESCANEX 93 Communications, Computers and Power in the Modern Environment - Conference Proceedings.

[16]  Toshio Nishikawa,et al.  Mechanically tunable MSW bandpass filter with combined magnetic units , 1990, IEEE International Digest on Microwave Symposium.

[17]  K. Chang,et al.  Theoretical and experimental investigation of novel varactor-tuned switchable microstrip ring resonator circuits , 1988 .

[18]  G. Torregrosa-Penalva,et al.  A simple method to design wide-band electronically tunable combline filters , 2002 .

[19]  H. Trabelsi,et al.  A varactor-tuned active microwave bandpass filter , 1992, IEEE Microwave and Guided Wave Letters.

[20]  I. Hunter,et al.  Electronically Tunable Microwave Bandpass Filters , 1982 .

[21]  R. L. Fjerstad.  Some Design Considerations and Realizations of Iris-Coupled YIG-Tuned Filters in the 12-40 GHz Region , 1970 .

[22]  Kai Chang,et al.  On the Study of Microstrip Ring and Varactor-Tuned Ring Circuits , 1987 .

[23]  M. Guglielmi,et al.  Coplanar MMIC active bandpass filters using negative resistance circuits , 1994 .

[24]  M.A. Kunes,et al.  A Diqitally Controlled Tunable High Power Output Filter For Space Apllications , 1989, 1989 19th European Microwave Conference.

[25]  Jr. R. Wyndrum.  Microwave filters, impedance-matching networks, and coupling structures , 1965 .

[26]  M. Michael,et al.  MMIC tunable bandpass filter using a ring resonator with loss compensation , 1997, 1997 IEEE MTT-S International Microwave Symposium Digest.

[27]  Huei Wang,et al.  K-band MMIC active band-pass filters , 2005, IEEE Microwave and Wireless Components Letters.

[28]  Tatsuo Itoh,et al.  Microwave active filters based on coupled negative resistance method , 1990 .

[29]  A new varactor-tuned microstrip ring bandpass filter with harmonic suppression , 2000, 2000 Asia-Pacific Microwave Conference. Proceedings (Cat. No.00TH8522).

[30]  S. H. Al-Charchafchi,et al.  Varactor tuned microstrip ring resonators , 1989 .

[31]  J.I. Alonso,et al.  Tunable combline filter with continuous control of center frequency and bandwidth , 2005, IEEE Transactions on Microwave Theory and Techniques.

[32]  G. Craven,et al.  Magnetically tunable multisection bandpass filters in ferrite-loaded evanescent waveguide , 1967 .

[33]  J.I. Alonso,et al.  Tunable planar combline filter with multiple source/load coupling , 2005, IEEE MTT-S International Microwave Symposium Digest, 2005..

[34]  Uwe Rosenberg,et al.  Tunable Manifold Multiplexers - A New Possibility For Satellite Redundancy Philosophy , 1988, 1988 18th European Microwave Conference.

[35]  P. Guillon,et al.  Improvements in losses and size of frequency tunable coplanar filter structures using MMIC negative resistance chips for multistandard mobile communication systems , 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

[36]  R. V. Snyder,et al.  Stepped-Ferrite Tunable Evanescent Filters , 1981 .

[37]  P. Katzin,et al.  Active GaAs MMIC band-pass filters with automatic frequency tuning and insertion loss control , 1995 .

[38]  Kai Chang,et al.  Varactor-Tuned Microstrip Ring Resonators , 1987, 1987 IEEE MTT-S International Microwave Symposium Digest.

[39]  K. Araki,et al.  A design of tunable UWB filters , 2004, 2004 International Workshop on Ultra Wideband Systems Joint with Conference on Ultra Wideband Systems and Technologies. Joint UWBST & IWUWBS 2004 (IEEE Cat. No.04EX812).

[40]  E. M. Jones,et al.  Microwave Filters, Impedance-Matching Networks, and Coupling Structures , 1980 .

[41]  K. Chang,et al.  Electronically tunable and switchable filters using microstrip ring resonator circuits , 1988, 1988., IEEE MTT-S International Microwave Symposium Digest.

[42]  Ian D. Robertson,et al.  MMIC active bandpass filters using varactor-tuned negative resistance elements , 1995 .

[43]  B. Kunz,et al.  Magnetically tunable oscillators and filters , 1989, International Magnetics Conference.

[44]  G. Matthaei.  Narrow-band, fixed-tuned, and tunable bandpass filters with zig-zag hairpin-comb resonators , 2003 .

[45]  Sang-Won Yun,et al.  Varactor-tuned combline bandpass filter using step-impedance microstrip lines , 2004 .

[46]  J. Helszajn.  YIG Resonators and Filters , 1985 .

[47]  M. Makimoto,et al.  Varactor Tuned Bandpass Filters Using Microstrip-Line Ring Resonators , 1986, 1986 IEEE MTT-S International Microwave Symposium Digest.