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MMWAVEICBOOST: Combined antenna radiation pattern in the azimuth plane for all the transmitter and receiver pairs together

Danilo A.
Mastermind 27120 points
Part Number: MMWAVEICBOOST
Other Parts Discussed in Thread: IWR6843ISK

Hi Team,

A customer would like to confirm if the combined antenna radiation pattern in the azimuth plane for all the transmitter and receiver pairs together (TX[1-3]-RX[1-4]) at Figure 51 of the User's Guide of mmWaveICBoost and Antenna Module (SWRU546C) is really as high as 115 dB to 120 dB? 

Regards,

Danilo

  • 0
    TI__Mastermind 25825 points

    Hello Danilo,

         The readings are relative scale, they are not absolute values, Hence antenna gains are not that high. Your point is valid, interpretation of  y-axis may not be very clear from the figures.

    However, the measurement are combined Tx and Rx antenna radiation patterns values are represented here are relative scale and not absolute representation of Antenna gain.

    To get a 6dB beam-width, we need to look from the peak of the antenna radiation pattern gain and go below 12dB lower in either side of Antenna Radiation pattern characteristics (As Tx and Rx elements are identical) and from there angle could be estimated. 

    Thanks and regards,

    CHETHAN KUMAR Y.B.

  • 0 in reply to CHETHAN KUMAR Y.B.
    Prodigy 10 points

    If the y axis is not in absolute values, where could we find the peak gain in absolute values (say dBi)? Should the total gain of the phased array be calculated using its array factor and assuming the peak gain (~5dBi) of individual patch antennas, or could we find the measured absolute peak gain of the total array somewhere?

  • 0 in reply to Alex Ravnik
    TI__Mastermind 25825 points

    Alex,

     Yes you could get total gain of the phased array by taking into account of array factor. The antenna peak gain of IWR6843ISK EVM Antenna is about ~6-7 dBi across the operating frequency band of 60 GHz.

    You could find in the below resource explorer folder:

    http://dev.ti.com/tirex/explore/node?node=ANS49gohN4gX2.NvHAAGGQ__VLyFKFf__LATEST

    Thanks and regards,

    CHETHAN KUMAR Y.B.