The ITM designated the 2.4 GHz band as an unlicensed spectrum specifically for microwave ovens . This band has three compelling properties: It doesn’t require much power to broadcast, it’s easy to contain, and at relatively lower power it can heat food.11 Oca 2019
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Following international conventions, microwave ovens at home or in restaurants operate at frequencies of about 2.45 GHz , i.e. λ = 12.
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