An antenna system configured to be implemented in an access point of a network having a network footprint including one or more trusted areas and one or more untrusted areas, the network further including one or more user equipment devices positioned in said trusted areas and one or more user equipment devices positioned in the untrusted areas, wherein the antenna system is configured for communicating with the user equipment devices within the network footprint, said antenna system futher comprising: an active multi-mode antenna comprising a single radiating element and one or more parasitic conductor elements, the active multi-mode antenna being configurable in one of a plurality of possible antenna modes, wherein the active multi-mode antenna is configured to exhibit a distinct radiation pattern in each of said plurality of possible antenna modes; a memory including signal quality data associated with a link quality metric relating link quality between each of the user equipment devices and the active multi-mode antenna in each of the plurality of possible modes thereof, and a controller coupled to the active multi-mode antenna, the controller being configured to communicate signals for adjusting the mode of the active multi-mode antenna from a first mode of the plurality of possible antenna modes to a second mode based on the signal quality data; wherein, in the second mode of the plurality of possible antenna modes, the active multi-mode antenna is configured to produce an interfering signal and to direct a gain of the interfering signal in a direction toward at least one of the one or more user equipment devices in the untrusted areas of the network footprint; wherein said interfering signal is configured to physically limit a link budget between the access point and the at least one of the one or more user equipment devices in the one or more untrusted areas of the network footprint. an active multi-mode antenna comprising a single radiating element and one or more parasitic conductor elements, the active multi-mode antenna being configurable in one of a plurality of possible antenna modes, wherein the active multi-mode antenna is configured to exhibit a distinct radiation pattern in each of said plurality of possible antenna modes; a memory including signal quality data associated with a link quality metric relating link quality between each of the user equipment devices and the active multi-mode antenna in each of the plurality of possible modes thereof, and a controller coupled to the active multi-mode antenna, the controller being configured to communicate signals for adjusting the mode of the active multi-mode antenna from a first mode of the plurality of possible antenna modes to a second mode based on the signal quality data; wherein, in the second mode of the plurality of possible antenna modes, the active multi-mode antenna is configured to produce an interfering signal and to direct a gain of the interfering signal in a direction toward at least one of the one or more user equipment devices in the untrusted areas of the network footprint; wherein said interfering signal is configured to physically limit a link budget between the access point and the at least one of the one or more user equipment devices in the one or more untrusted areas of the network footprint.