Systems and methods for tuning filters

Wave transmission lines and networks – Automatically controlled systems

Reexamination Certificate

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C333S0990MP

Reexamination Certificate

active

07825743

ABSTRACT:
Methods, systems and apparatus for filter design, analysis and adjustment are provided. Various embodiments may include, for example, methods, systems and apparatus for electric signal filter tuning. Embodiments may also include design techniques for planar electric signal (e.g., RF signals) filter tuning. In at least an embodiment of the present invention a technique for filter tuning is provided which may include parameter extraction, optimization and tuning recipes techniques that may require only a single permanent filter tuning. In at least another embodiment a system and method of filter design, analysis and adjustment according to the present invention includes use of tuning that may be set using a mechanical scribing tool or a laser trimming device. In at least one other embodiment, a filter tuning technique may be provided and include providing trimming tabs on a resonator edge that may be disconnected or trimmed for filter tuning.

REFERENCES:
patent: 5055651 (1991-10-01), Schneider et al.
patent: 5616539 (1997-04-01), Hey-Shipton et al.
patent: 5808527 (1998-09-01), De Los Santos
patent: 5968876 (1999-10-01), Sochor
patent: 6259208 (2001-07-01), Crouch
patent: 6321444 (2001-11-01), Yatsuda et al.
patent: 6347237 (2002-02-01), Eden et al.
patent: 6356163 (2002-03-01), Dunsmore et al.
patent: 6380819 (2002-04-01), Dunsmore et al.
patent: 6529750 (2003-03-01), Zhang et al.
patent: 6662029 (2003-12-01), Eden et al.
patent: 6750733 (2004-06-01), Dunsmore et al.
patent: 6791430 (2004-09-01), Borzenets et al.
patent: 6987427 (2006-01-01), Mattsson et al.
patent: 7117025 (2006-10-01), Shih et al.
patent: 7482890 (2009-01-01), Tsuzuki et al.
patent: 2002/0068682 (2002-06-01), Shen
patent: 2003/0016099 (2003-01-01), Manseau et al.
patent: 2003/0048148 (2003-03-01), Humphreys et al.
patent: 2003/0222732 (2003-12-01), Matthael
patent: WO 0249213 (2002-06-01), None
patent: WO2005/053086 (2005-06-01), None
Herbert L. Thal, Jr., Computer-Aided Filter Alignment and Diagnosis, IEEE Transactions on Microwave Theory and Techniques, vol. MTT-26, No. 12, Dec. 1978.
Peter Harscher, Rudiger Vahldieck, and Smain Amari, Automated Filter Tuning Using Generalized Low-Pass Prototype Networks and Gradient-Based Parameter Extraction, IEEE Transactions on Microwave Theory and Techniques, vol. 49, No. 12, Dec. 2001.
Genichi Tsuzuki, Masanobu Suzuki, and Nobuyoshi Sakakibara, Superconducting Filter for IMT-2000 Band, IEEE Transactions on Microwave Theory and Techniques, vol. 48, No. 12, Dec. 2000.
N. J. Parker, S.W. Goodyear, D.J.P. Ellis, and R.G. Humphreys, Tuning Superconducting Microwave Filters by Laser Trimming, IEEE MTT-S Digest, 2002, pp. 1971-1974.
Gregory L. Hey-Shipton, Efficient Computer Design of Compact Planar Band-Pass Filters Using Electrically Short Multiple Coupled Lines, IEEE, 1999.
Notification Concerning Transmittal of International Preliminary Report on Patent Ability, Jun. 14, 2007, International Application No. PCT/US2005/042867.
Smain Amari, Synthesis of Cross-Coupled Resonator Filters Using an Analytical Gradient-Based Optimization Technique, IEEE Transactions of Microwave Theory and Technique, vol. 48, No. 9, Sep. 2000.
G. Pepe, F.-J. Gortz, H. Chaloupka, Computer-Aided Tuning and Diagnosis of Microwave Filters Using Sequential Parameter Extraction, IEEE MTT-S Digest, 2004.

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