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Recent content by Alex0131

  1. A

    Effective Signal Volume of 8.2 MHz EAS Tag

    Hi All, I try to design resonant LC label (EAS Tag) on 8.2 MHz. Among other characteristics such tags have parameter Effective Signal Volume. Could anybody explain, what this parameter means and how I can calculate it.
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    433MHz loaded loop antenna design, length and loading

    Re: loaded antenna design This application note can be usefull for you. A loop antenna design for 433 MHz is also considered here.
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    Antenna field concept

    These terms are briefly explained in the excerpt "antenna near field" . By the way, somebody knows, whence this excerpt?
  4. A

    design method for dual band operation of patch antenna

    Re: Dual Band Patch Antenna Part about Dual Frequency Microstrip Antenna you can find in book "Compact and Broadband Microstrip Antennas" by Kin-Lu Wong. And you also can look attached presentation. Maybe PIFA design is suitable for you.
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    design method for dual band operation of patch antenna

    Re: Dual Band Patch Antenna Maybe this paper will help you.
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    designinng a microstrip rectangular patch antenna

    example of a rectangular microstrip patch antenna This example shows coaxial feeding of patch antenna.
  7. A

    RFID: Backscattering question

    rfid backscattering power You also can find usefull information in book call "RFID Handbook. 2end edition" by K. Finkenzeller (translated by R. Waddington).
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    How to design an antenna in HFSS?

    Re: antenna design? What type of an antenna do you want to design? What bandwidth is needed? Give more information and then it's possible we can give you some suggestion or useful reference.
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    The cost and range of 900MHZ RFID

    Re: 900 Mhz RFID It is more truthful.
  10. A

    The cost and range of 900MHZ RFID

    Re: 900 Mhz RFID 30m!? Please, give the link.
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    Examples and useful references about HFSS

    Re: HFSS You can find antenna example here https://www.emtalk.com/tut_1.htm and looke the attached file too.
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    What are the design rules for stacked patch?

    Re: stacked patch See this papers, it is possible, they will help you.
  13. A

    Design a patch antenna on a foam

    HFSS-Help-Search(keywords are "Creating 2D Polar Plots") https://www.google.ru/search?hl=ru&lr=&defl=en&q=define:VSWR&sa=X&oi=glossary_definition&ct=title https://www.google.ru/search?hl=ru&lr=&defl=en&q=define:Return+Loss&sa=X&oi=glossary_definition&ct=title The mathing an antenna with a feed...
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    Design a patch antenna on a foam

    In this case, I think, you can to select as a dielectric the air from the material tabs. You don't know how to find its in HFSS or what this terms denote?
  15. A

    Design a patch antenna on a foam

    patch antenna foam You can to creat new a materials yourself and to set its dielectric capacitivity and other parameters.
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