ATE466387T1 - APPARATUS AND METHODS FOR BRANCH FEED COUPLING RING RESONATOR PAIR FILTERS WITH ELLIPTICAL FUNCTIONS - Google Patents

APPARATUS AND METHODS FOR BRANCH FEED COUPLING RING RESONATOR PAIR FILTERS WITH ELLIPTICAL FUNCTIONS

Info

Publication number
ATE466387T1
ATE466387T1 AT04779847T AT04779847T ATE466387T1 AT E466387 T1 ATE466387 T1 AT E466387T1 AT 04779847 T AT04779847 T AT 04779847T AT 04779847 T AT04779847 T AT 04779847T AT E466387 T1 ATE466387 T1 AT E466387T1
Authority
AT
Austria
Prior art keywords
resonators
filter
methods
ring resonator
coupling ring
Prior art date
Application number
AT04779847T
Other languages
German (de)
Inventor
Norman A Luque
Original Assignee
Raytheon Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Raytheon Co filed Critical Raytheon Co
Application granted granted Critical
Publication of ATE466387T1 publication Critical patent/ATE466387T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/20327—Electromagnetic interstage coupling
    • H01P1/20354—Non-comb or non-interdigital filters
    • H01P1/20381—Special shape resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/20327—Electromagnetic interstage coupling
    • H01P1/20354—Non-comb or non-interdigital filters
    • H01P1/20363—Linear resonators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A filter has coupled pairs of resonators positioned between and planar to split feed lines. The filters are further positioned orthogonal to the signal path. The filter has two pairs of resonators. Coupling extensions of the split feed lines are substantially parallel to each other. The resonators couple with the split feed lines at the coupling extensions. The resonators in each pair also couple to each other. The topology effectively forms an Elliptic Function response bandpass filter with high close-in frequency rejection capability. The filter can be cascaded to provide improved frequency rejection. Further, this topology may be relatively inexpensively produced using standard lithography techniques.
AT04779847T 2004-07-30 2004-07-30 APPARATUS AND METHODS FOR BRANCH FEED COUPLING RING RESONATOR PAIR FILTERS WITH ELLIPTICAL FUNCTIONS ATE466387T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2004/024913 WO2006022672A1 (en) 2004-07-30 2004-07-30 Apparatus and methods for split-feed coupled-ring resonator-pair elliptic-function filters

Publications (1)

Publication Number Publication Date
ATE466387T1 true ATE466387T1 (en) 2010-05-15

Family

ID=34958479

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04779847T ATE466387T1 (en) 2004-07-30 2004-07-30 APPARATUS AND METHODS FOR BRANCH FEED COUPLING RING RESONATOR PAIR FILTERS WITH ELLIPTICAL FUNCTIONS

Country Status (5)

Country Link
EP (1) EP1782496B1 (en)
JP (1) JP4327876B2 (en)
AT (1) ATE466387T1 (en)
DE (1) DE602004026933D1 (en)
WO (1) WO2006022672A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008172455A (en) * 2007-01-10 2008-07-24 National Institute Of Information & Communication Technology Band-stop filter
US8902020B2 (en) 2009-07-27 2014-12-02 Avago Technologies General Ip (Singapore) Pte. Ltd. Resonator filter with multiple cross-couplings
US11211676B2 (en) 2019-10-09 2021-12-28 Com Dev Ltd. Multi-resonator filters
CN114976540B (en) * 2022-03-31 2023-11-03 南通大学 Reflection-free band-pass filter based on three-wire coupling structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7314269A (en) * 1973-10-17 1975-04-21 Philips Nv MICROWAVE DEVICE EQUIPPED WITH A 1/2 LAMBDA RESONATOR.
JPH0812961B2 (en) * 1989-05-02 1996-02-07 株式会社村田製作所 Parallel multi-stage bandpass filter
WO1995028746A2 (en) * 1994-04-14 1995-10-26 E.I. Du Pont De Nemours And Company High power high-temperature superconductive filters
US6825742B1 (en) * 2002-12-30 2004-11-30 Raytheon Company Apparatus and methods for split-feed coupled-ring resonator-pair elliptic-function filters

Also Published As

Publication number Publication date
WO2006022672A1 (en) 2006-03-02
JP4327876B2 (en) 2009-09-09
DE602004026933D1 (en) 2010-06-10
EP1782496B1 (en) 2010-04-28
EP1782496A1 (en) 2007-05-09
JP2008508788A (en) 2008-03-21

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