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  1. tiger82

    Dual band antenna for GSM and UMTS

    The design dimensions should be : LxWxH : 10x10x5 cm (maximum dimensions) For the feed type there will be a coax line that can feed the design. So the design needed is a low profile antenna (by expample: microstrip , aperture coupled ...)and should be placed on the Helicpter on the lower...
  2. tiger82

    Dual band antenna for GSM and UMTS

    I need an antenna to be low profile (suitable to be mounted on a Helicopter) and that covers GSM upload band (880-915)and UMTS upload band (1850-1980) A design with a circular polarization is the optimal that i can expect. I will appreciate any idea or document, Thank you
  3. tiger82

    Array of antennas for 80 MHz

    The antenna array is for the detection and localisation of a transmitter at 80 MHz. Thank you
  4. tiger82

    Array of antennas for 80 MHz

    Do you have any brilliant idea about an antenna array suitable to be mounted on a Helicopter for the detection of a communication handset that work on 80MHz? (i appreciate any idea ...)

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