Changes between Version 1 and Version 2 of Hardware/antennas


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Timestamp:
May 28, 2019, 7:33:18 PM (6 years ago)
Author:
jkol
Comment:

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  • Hardware/antennas

    v1 v2  
    99The directional antennas are comprised of a horizontal array of four 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, see RF front end for details) and 900 MHz - 6 GHz for receive.
    1010
     11A GPS antenna is located near the transmit/receive antenna and provides the GPS signal to the USRPs in the node.
     12
     13|| [[Image()]] ||
     14|| Antenna element numbering ||
     15
    1116[[BR]]
    1217=== Omni-directional (medium node) ===
    1318The omni-directional antennas are comprised of four vertically oriented 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, see RF front end for details) and 1.7 - 6GHz for receive.
    1419
    15 [[Image()]]
     20A GPS antenna is located in the middle and provides the GPS signal to the USRPs in the node.
     21
     22|| [[Image(medium antenna top down view.png, 400px)]] ||
     23|| Antenna element numbering ||