Antenna apparatus (100, 100') comprising: a first subassembly (110, 110') comprising a plurality of antenna elements; and a second subassembly (150, 150') adhered to the first subassembly, the second subassembly comprising a plurality of components (160, 170, 180) of a beamforming network encapsulated within a molding material, and further comprising one or more interconnect layers on the molding material to electrically couple the plurality of components of the beamforming network to the plurality of antenna elements, wherein the plurality of components includes an input/output port, a combiner / divider network, and a plurality of integrated circuit, IC, chips each electrically coupled to at least one of the antenna elements, wherein: the input/output port is configured to route a transmit radio frequency, RF, signal in a transmit direction to the combiner / divider network and/or route a combined receive RF signal from the combiner / divider network in a receive direction; the combiner / divider network is configured to divide the RF transmit signal into a plurality of divided transmit RF signals and/or combine a plurality of modified RF receive signals, each received from one of the IC chips, into the combined RF receive signal; and each of the IC chips is configured to modify a respective one of the divided RF transmit signals to provide a modified RF transmit signal and output the same to the at least one antenna element coupled thereto and/or modify an RF receive signal provided from the at least one antenna element coupled thereto to provide one of the modified RF receive signals to the combiner / divider network. a first subassembly (110, 110') comprising a plurality of antenna elements; and a second subassembly (150, 150') adhered to the first subassembly, the second subassembly comprising a plurality of components (160, 170, 180) of a beamforming network encapsulated within a molding material, and further comprising one or more interconnect layers on the molding material to electrically couple the plurality of components of the beamforming network to the plurality of antenna elements, wherein the plurality of components includes an input/output port, a combiner / divider network, and a plurality of integrated circuit, IC, chips each electrically coupled to at least one of the antenna elements, wherein: the input/output port is configured to route a transmit radio frequency, RF, signal in a transmit direction to the combiner / divider network and/or route a combined receive RF signal from the combiner / divider network in a receive direction; the combiner / divider network is configured to divide the RF transmit signal into a plurality of divided transmit RF signals and/or combine a plurality of modified RF receive signals, each received from one of the IC chips, into the combined RF receive signal; and each of the IC chips is configured to modify a respective one of the divided RF transmit signals to provide a modified RF transmit signal and output the same to the at least one antenna element coupled thereto and/or modify an RF receive signal provided from the at least one antenna element coupled thereto to provide one of the modified RF receive signals to the combiner / divider network. the input/output port is configured to route a transmit radio frequency, RF, signal in a transmit direction to the combiner / divider network and/or route a combined receive RF signal from the combiner / divider network in a receive direction; the combiner / divider network is configured to divide the RF transmit signal into a plurality of divided transmit RF signals and/or combine a plurality of modified RF receive signals, each received from one of the IC chips, into the combined RF receive signal; and each of the IC chips is configured to modify a respective one of the divided RF transmit signals to provide a modified RF transmit signal and output the same to the at least one antenna element coupled thereto and/or modify an RF receive signal provided from the at least one antenna element coupled thereto to provide one of the modified RF receive signals to the combiner / divider network.