AU2002218005A1 - Method of channel frequency allocation for rf and microwave duplexers - Google Patents

Method of channel frequency allocation for rf and microwave duplexers

Info

Publication number
AU2002218005A1
AU2002218005A1 AU2002218005A AU1800502A AU2002218005A1 AU 2002218005 A1 AU2002218005 A1 AU 2002218005A1 AU 2002218005 A AU2002218005 A AU 2002218005A AU 1800502 A AU1800502 A AU 1800502A AU 2002218005 A1 AU2002218005 A1 AU 2002218005A1
Authority
AU
Australia
Prior art keywords
bandpass filter
tunable bandpass
channel frequency
frequency allocation
assigned
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2002218005A
Inventor
Xiao-Peng Liang
John Robinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BlackBerry RF Inc
Original Assignee
Paratek Microwave Inc
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 Paratek Microwave Inc filed Critical Paratek Microwave Inc
Publication of AU2002218005A1 publication Critical patent/AU2002218005A1/en
Abandoned legal-status Critical Current

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
    • H01P1/20336—Comb or interdigital filters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Transceivers (AREA)
  • Radio Relay Systems (AREA)
  • Transmitters (AREA)
  • Plasma Technology (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

A method is provided for operating a duplexer including a first tunable bandpass filter, a second tunable bandpass filter and means for coupling the first bandpass filter and the second bandpass filter to an antenna. The method comprises the steps of tuning the first tunable bandpass filter to provide a passband corresponding to an assigned transmit frequency, and tuning the second tunable bandpass filter to provide a passband offset from an assigned receive frequency, when the duplexer is operated in a transmit mode. When the duplexer is operated in a receive mode, the first tunable bandpass filter is tuned to provide a passband offset from an assigned transmit frequency and the second tunable bandpass filter is tuned to provide a passband corresponding to the assigned receive frequency.
AU2002218005A 2000-11-03 2001-11-02 Method of channel frequency allocation for rf and microwave duplexers Abandoned AU2002218005A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US24553800P 2000-11-03 2000-11-03
US60/245,538 2000-11-03
PCT/US2001/045560 WO2002037708A2 (en) 2000-11-03 2001-11-02 Method of channel frequency allocation for rf and microwave duplexers

Publications (1)

Publication Number Publication Date
AU2002218005A1 true AU2002218005A1 (en) 2002-05-15

Family

ID=22927069

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002218005A Abandoned AU2002218005A1 (en) 2000-11-03 2001-11-02 Method of channel frequency allocation for rf and microwave duplexers

Country Status (6)

Country Link
US (2) US6492883B2 (en)
EP (1) EP1338096B1 (en)
AT (1) ATE295632T1 (en)
AU (1) AU2002218005A1 (en)
DE (1) DE60110827T2 (en)
WO (1) WO2002037708A2 (en)

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US6492883B2 (en) 2002-12-10
ATE295632T1 (en) 2005-05-15
EP1338096A2 (en) 2003-08-27
WO2002037708A3 (en) 2003-01-16
US6653912B2 (en) 2003-11-25
DE60110827T2 (en) 2006-01-12
US20020097112A1 (en) 2002-07-25
EP1338096B1 (en) 2005-05-11
WO2002037708A2 (en) 2002-05-10
US20030048153A1 (en) 2003-03-13

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