Article | REF: E3290 V1

Millimeter wave antennas and applications

Authors: Olivier LAFOND, Mohamed HIMDI

Publication date: May 10, 2017 | Lire en français

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    2. Specific features of the millimeter-wave spectrum

    2.1 Free-space attenuation and atmospheric absorption

    When designing an electromagnetic wave transmit/receive system, the power balance is impacted by the transmit power (P t ), the realized gain of the transmit and receive antennas (G rt , G rr ) and, of course, the free-space attenuation of the waves, which is proportional to distance (r) and frequency. The theoretical power received between a transmitter and a receiver is thus given by the equation

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    Specific features of the millimeter-wave spectrum