A communication apparatus includes an antenna array having a plurality of antenna elements, and a plurality of thermoelectric devices that are arranged on the plurality of antenna elements of the antenna array. The communication apparatus further includes a processor that determines which subset of the antenna elements of the plurality of antenna elements are in an activated state and which are in a deactivated state, and further control each of the plurality of thermoelectric devices to execute an activation or a deactivation of each of the plurality of thermoelectric devices in synchronization with the activated state or the deactivated state of different subsets of antenna elements of the plurality of antenna elements.