Changes between Version 15 and Version 16 of Hardware/antennas


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Timestamp:
May 8, 2020, 8:45:19 PM (5 years ago)
Author:
msherman
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  • Hardware/antennas

    v15 v16  
    1 [[TOC(WikiStart,TestbedInformation*,depth=4)]]
     1[[Include(WikiToC)]]
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    3 === Antennas
     3== Antennas
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    55There are two styles of antennas in use in COSMOS. The first style is directional and used exclusively as part of the large node sectors. The second style is omni-directional and used as part of the medium nodes.
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    1010[[BR]]
    11 ==== Directional (large node sector)
     11=== Directional (large node sector)
    1212The directional antennas are comprised of a horizontal array of four [attachment:RFSpace_TSA900_directional.pdf ultra-wideband antenna elements]. Each element is oriented in the vertical plane and spaced 3 inches (7.63mm) from its neighbor. The frequency range covered by the antennas is 900 MHz - 12 GHz. However, due to limitations in the power amplifiers, USRPs, and other RF front end components, the actual frequency ranges are 2.4 - 6 GHz for transmit (non-contiguous, [wiki:hardware/rf-front-end see RF front end for details]) and 900 MHz - 6 GHz for receive.
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    1919[[BR]]
    20 ==== Omni-directional (medium node)
     20=== Omni-directional (medium node)
    2121The omni-directional antennas are comprised of four vertically oriented [attachment:MobileMark_RM-WHF_omni.pdf​ multi-band antennas] in a 6” (15.24 cm) 2x2 square pattern with a 14.25”x14.25” (36.2x36.2 cm) ground plane. The frequency range covered by the antennas is 1.7 - 6 GHz. However, due to limitations in the power amplifiers, USRPs, and other RF front end components, the actual frequency ranges are 2.4 - 6 GHz for transmit (non-contiguous, [wiki:rf-front-end see RF front end for details]) and 1.7 - 6GHz for receive.
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