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  • 2019.1.3 WLAN 802.11 a/b/g PHY Specification and EDVT Measurement I

    This lecture provides the WLAN hardware engineer the essential knowledge of IEEE 802.11 a/b/g physical specification and the basic skill of how to do the EDVT of WLAN.

    Transmit Power Level:

    1 Operating Frequency

    IEEE 802.11a 17.3.8.3.1
    5GHz U-II Band For FCC in USA
    Channel center frequencies are defined at every integral multiple of 5 MHz above 5 GHz.
    Channel center frequency = 5000 + 5 × nch (MHz) where nch = 0.1…200

    IEEE 802.11b 18.4.6.1 IEEE 802.11g 19.4.2
    2.4GHz ~ 2.484.5GHz in European
    Channel center frequencies are defined at every integral multiple of 5 MHz from 2412 GHz to 2472MHz (I.e. Ch1 & Ch13)
    2.4GHz ~ 2.497 GHz in Japan

    2Operating Channel 

     3 Regulatory Specification 

     

    4  Basic Set up of Transmit Power Level

     

    ESA Setup
    -Span 110MHz
    -RBW 100kHz
    -VBW 100kHz (11b)
    -VBW 30kHZ (11a/g)
    -Sweep Time 500ms
    -Detector RMS Average

    EDVT Condition
    -Nominal Voltage +/- 10%
    -3.0V, 3.3V, 3.6V
    -Low,Room,High Temperature 0C,25C,60C

    Power Selection

    -Average Power or Peak Power,
    -Power at Antenna connector or EIRP Power

    Intel Project (T60H879) Product Specification Example

    -17dBm Average Power at Antenna Connector for IEEE 802.11b
    -16dBm Average Power at Antenna Connector for IEEE802.11g (6M,9M,12M,18M,24M,36M)
    -13dBm Average Power at Antenna Connector for IEEE802.11g(48M)
    -12dBm Average Power at Antenna Connector for IEEE802.11g(54M)

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  • 原文地址:https://www.cnblogs.com/huangbaobaoi/p/10216533.html
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