Abstract: An antenna device for transmitting or receiving a radio frequency (RF) signal. The antenna device includes a plurality of RF signal feeds, and an array of M times N radiating elements. The array includes M rows and N columns, where M?2 and N?M. The array is subdivided into a plurality of clusters. Each cluster includes one or more radiating elements. The one or more radiating elements of each cluster are connected to one of the RF signal feeds. The columns of the array include two outer columns and one or more inner columns, where each inner column includes K1 clusters, where K1?1. Each outer column includes K2 clusters, where K2>K1.

Abstract: The present disclosure relates to antenna devices and arrays of antenna devices. One example antenna device includes a first radiator configured to radiate a first electromagnetic signal, a second radiator configured to radiate a second electromagnetic signal, and a joint feeding network including a first 180-degree coupler and a second 180-degree coupler arranged in sequence. The first 180-degree coupler receives first input signal and second input signal, and the second 180-degree coupler provides first output signal to the first radiator and second output signal to the second radiator. In the joint feeding network, a first path connects the first 180-degree coupler to the second 180-degree coupler including a first phase shifter. A second path connects the first 180-degree coupler to the second 180-degree coupler including a second phase shifter and an attenuator.