Antenna apparatus includes a system ground and an antenna sub-assembly including a feed pad and a ground pad that are configured to have a cable terminated thereto. The ground pad is electrically coupled to the system ground. The antenna sub-assembly includes a first level having a radiating trace that is electrically coupled to the feed pad. The radiating trace is configured for communication within a designated radio frequency (RF) band. The antenna sub-assembly also includes a second level that is stacked with respect to the first level and has a reflector. The reflector is vertically aligned with a portion of the radiating trace to block RF emissions therefrom.