A panel antenna having an enclosure, an internal cover, one or more micro radios and RF modules, and a radome is provided. The enclosure may include a rectangular rear panel, side walls with an interior surface to mount micro radios and an external surface to receive heat sinks, and a hinged front cover providing an internal cover. The internal cover may also have a plurality of RF radiating modules fastened thereto. The internal cover may also provide environmental sealing and electromagnetic shielding. The plurality of micro radios are located inside the cavity of the enclosure, and each micro radio is coupled to an RF radiating module. The micro radios may be mounted inside the enclosure on the side walls. The radome encloses the RF radiating modules. The radome may be mounted to the internal seal. Additionally, the panel antenna may further include a heat sink mounted on an exterior side of the rear panel. The heat sink on the rear panel may dissipate heat from additional active electronics, such as a communications hub or calibration radio. The micro radios and active electronics may be mounted such that the heat sinks dissipate heat generated by the micro radios.