WO2000028682A3 - A method and apparatus for two-dimensional filtering in a communications system using a transformer system - Google Patents

A method and apparatus for two-dimensional filtering in a communications system using a transformer system Download PDF

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Publication number
WO2000028682A3
WO2000028682A3 PCT/US1999/026305 US9926305W WO0028682A3 WO 2000028682 A3 WO2000028682 A3 WO 2000028682A3 US 9926305 W US9926305 W US 9926305W WO 0028682 A3 WO0028682 A3 WO 0028682A3
Authority
WO
WIPO (PCT)
Prior art keywords
transformer
star
winding
dimensional filtering
communications system
Prior art date
Application number
PCT/US1999/026305
Other languages
French (fr)
Other versions
WO2000028682A2 (en
Inventor
Stephen H Smith
Original Assignee
Smith Technology Dev Llc
Stephen H Smith
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 Smith Technology Dev Llc, Stephen H Smith filed Critical Smith Technology Dev Llc
Priority to AU16110/00A priority Critical patent/AU1611000A/en
Publication of WO2000028682A2 publication Critical patent/WO2000028682A2/en
Publication of WO2000028682A3 publication Critical patent/WO2000028682A3/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion

Landscapes

  • Near-Field Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

A transformer system (300) comprises a transformer star winding (310) to be coupled to antenna system (330), and a transformer delta winding (320) disposed with the transformer star winding. The transformer star winding includes a set of star elements and the transformer delta winding includes a set of delta elements each being substantially perdendicularly disposed with a corresponding star element from the set of star elements.
PCT/US1999/026305 1998-11-09 1999-11-09 A method and apparatus for two-dimensional filtering in a communications system using a transformer system WO2000028682A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16110/00A AU1611000A (en) 1998-11-09 1999-11-09 A method and apparatus for two-dimensional filtering in a communications system using a transformer system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18822098A 1998-11-09 1998-11-09
US09/188,220 1998-11-09

Publications (2)

Publication Number Publication Date
WO2000028682A2 WO2000028682A2 (en) 2000-05-18
WO2000028682A3 true WO2000028682A3 (en) 2007-09-07

Family

ID=22692240

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/026305 WO2000028682A2 (en) 1998-11-09 1999-11-09 A method and apparatus for two-dimensional filtering in a communications system using a transformer system

Country Status (2)

Country Link
AU (1) AU1611000A (en)
WO (1) WO2000028682A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717876A (en) * 1971-04-23 1973-02-20 Volkers Res Corp Ferrite antenna coupled to radio frequency currents in vehicle body
US3828439A (en) * 1972-08-21 1974-08-13 Toyoda Machine Works Ltd Sizing system for measuring the diameter of a rotating workpiece of non-circular cross-section
US4194239A (en) * 1978-07-05 1980-03-18 Krishnaswamy Jayaram Electrical invertor apparatus
US4485343A (en) * 1981-12-14 1984-11-27 General Electric Company Electronic watt and watthour meter having analog and digital outputs with automatic error correction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717876A (en) * 1971-04-23 1973-02-20 Volkers Res Corp Ferrite antenna coupled to radio frequency currents in vehicle body
US3828439A (en) * 1972-08-21 1974-08-13 Toyoda Machine Works Ltd Sizing system for measuring the diameter of a rotating workpiece of non-circular cross-section
US4194239A (en) * 1978-07-05 1980-03-18 Krishnaswamy Jayaram Electrical invertor apparatus
US4485343A (en) * 1981-12-14 1984-11-27 General Electric Company Electronic watt and watthour meter having analog and digital outputs with automatic error correction

Also Published As

Publication number Publication date
AU1611000A (en) 2000-05-29
WO2000028682A2 (en) 2000-05-18

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