This document describes a twin line fed dipole array antenna that may be coupled to several different types of feed networks in a space-efficient manner. The antenna makes use of a twin line feed to a plurality of dipoles that minimizes cross-polarization. The antenna may be manufactured on a printed circuit board (PCB) and has a centered feed slot that is easily coupled to several different types of waveguides or a microstrip. In some implementations, the dipole elements may have an approximately rectangular shape. In other implementations, the dipole elements may have an approximately bowtie shape, round shape, oval shape, C-shape, or L-shape. The size and placement of the dipole elements may be optimized for certain operating frequencies of the radar system to which the antenna is coupled.

An antenna system has a two-dimensional field of view, yet can be implemented on a surface, such as on electronic or photonic integrated circuits. The antenna system includes an array of antennas disposed in a predetermined non-linear pattern and a two-dimensional beamforming network (BFN). The antenna system can be steered/selectively beamformed in two dimensions through beam port selection. The beamforming network is disposed entirely on a single first surface. The beamforming network has a one-dimensional array-side interface disposed on the first surface and a one-dimensional beam-side interface disposed on the first surface. The antennas of the array of antennas are individually communicably coupled to the array-side interface. Segments of the beam-side interface map to respective pixels in the two-dimensional field of view.

An antenna system has a two-dimensional field of view, yet can be implemented on a surface, such as on electronic or photonic integrated circuits. The antenna system includes an array of antennas disposed in a predetermined non-linear pattern and a two-dimensional beamforming network (BFN). The antenna system can be steered/selectively beamformed in two dimensions through beam port selection. The beamforming network is disposed entirely on a single first surface. The beamforming network has a one-dimensional array-side interface disposed on the first surface and a one-dimensional beam-side interface disposed on the first surface. The antennas of the array of antennas are individually communicably coupled to the array-side interface. Segments of the beam-side interface map to respective pixels in the two-dimensional field of view.

There is provided a broadband multi-bay antenna array comprising an upper antenna element group and a lower antenna element group. Each of the upper antenna group and lower antenna group comprises a pair of antenna elements separated by a distance of one-half wavelength at mid-band wavelength. Radiating elements of said first antenna in each pair are positioned in a first orientation and radiating elements of said second antenna in each pair are positioned in a second orientation which differs from the orientation of the first antenna by 180 degrees (flipped over). A center feed input port is positioned between the upper antenna element group and the lower antenna element group and is electrically coupled to each of the first, second, third and fourth antenna elements.

There is provided a broadband multi-bay antenna array comprising an upper antenna element group and a lower antenna element group. Each of the upper antenna group and lower antenna group comprises a pair of antenna elements separated by a distance of one-half wavelength at mid-band wavelength. Radiating elements of said first antenna in each pair are positioned in a first orientation and radiating elements of said second antenna in each pair are positioned in a second orientation which differs from the orientation of the first antenna by 180 degrees (flipped over). A center feed input port is positioned between the upper antenna element group and the lower antenna element group and is electrically coupled to each of the first, second, third and fourth antenna elements.

A network node is connected to a plurality of antenna nodes that are located along a constrained path where a plurality of wireless communication devices are located. The antenna nodes are controlled to maintain reception radio lobes substantially along the path such that the wireless communication devices can perform uplink radio communication with the network node via the reception radio lobes. At least one RF signal is detected in a PRACH, with a first PRACH configuration. A determination is made of a radio frequency offset of the detected RF signal. A determination is then made that the at least one RF signal originates from a wireless communication device of a specific subset among the plurality of wireless communication devices. Each wireless communication devices in the specific subset is associated with the radio frequency offset. A second PRACH configuration that is common to all wireless communication devices in the specific subset of wireless communication devices is then provided to the wireless communication device.

A network node is connected to a plurality of antenna nodes that are located along a constrained path where a plurality of wireless communication devices are located. The antenna nodes are controlled to maintain reception radio lobes substantially along the path such that the wireless communication devices can perform uplink radio communication with the network node via the reception radio lobes. At least one RF signal is detected in a PRACH, with a first PRACH configuration. A determination is made of a radio frequency offset of the detected RF signal. A determination is then made that the at least one RF signal originates from a wireless communication device of a specific subset among the plurality of wireless communication devices. Each wireless communication devices in the specific subset is associated with the radio frequency offset. A second PRACH configuration that is common to all wireless communication devices in the specific subset of wireless communication devices is then provided to the wireless communication device.

One antenna module includes a first circuit board and a second circuit board connected to the first circuit board. The antenna module includes a first antenna disposed on the first circuit board. The antenna module also includes a second antenna disposed on the second circuit board. The second circuit board has a first side and a second side opposite the first side. The second antenna includes a first parasitic strip and a second parasitic strip. The first parasitic strip is disposed on the first side of the second circuit board, and the second parasitic strip is disposed on the second side of the second circuit board.

One antenna module includes a first circuit board and a second circuit board connected to the first circuit board. The antenna module includes a first antenna disposed on the first circuit board. The antenna module also includes a second antenna disposed on the second circuit board. The second circuit board has a first side and a second side opposite the first side. The second antenna includes a first parasitic strip and a second parasitic strip. The first parasitic strip is disposed on the first side of the second circuit board, and the second parasitic strip is disposed on the second side of the second circuit board.

In some embodiments, an apparatus may include a conductive planar structure having a plurality of antenna elements and a plurality of cutout portions. The plurality of cutout portions may define a combiner circuit including an output interface and including a combiner circuit coupled between each of the plurality of antenna elements and the output interface.