Abstract: There is provided an antenna system and a method of forming an antenna system, the antenna system comprising, a base member having a cavity defined on a surface thereof; a tunable material layer disposed within the cavity of the base member; a substantially planar substrate coupled to the base member such that a first side of the substrate is in contact with the tunable material layer; and a radiator coupled to a second side of the substrate such that the substrate is between the radiator and the base member, said radiator comprising an array of grid cells configured to generate a beam upon excitation thereof; wherein the tunable material layer comprises a tunable material capable of changing its dielectric constant in response to a variable biasing voltage applied between the radiator and the base member, such that one or more properties of the beam changes according to the dielectric constant of the tunable material.

Abstract: There is provided an array antenna and a method of generating circularly polarized beams using an array antenna, the array antenna comprising, a plurality of sub-arrays, each of the plurality of sub-arrays comprising, a plurality of antenna elements, each antenna element comprising a first feeding port and a second feeding port; a physical integrated circuit (IC) comprising a plurality of first and second output channels; a first feeding network comprising a plurality of first feed lines communicatively coupling each of the first output channels of the physical IC to a first feeding port of each of the plurality of antenna elements; and a second feeding network comprising a plurality of second feed lines communicatively coupling each of the second output channels of the physical IC to a second feeding port of each of the plurality of antenna elements; wherein the physical IC is configured to excite the plurality of antenna elements via the first feeding network to generate a first circularly polarized (CP) be

Abstract: A phased array antenna that maximizes antenna gain and minimizes or avoids grating/side lobes issues. The phased array antenna includes a receiver antenna array including one or more groups of receiver radiating elements, where each group of receiver radiating elements includes a first receiver subarray of receiver radiating elements and a second receiver subarray of receiver radiating elements. The phased array antenna further includes receiver core chips, including, for each of the one or more groups of receiver radiating elements, a first receiver core chip associated with the first receiver subarray and a second receiver core chip associated with the second receiver subarray. Additionally, the phased array antenna includes receiver feeding networks, including, for each of the one or more groups of receiver radiating elements, a first receiver feeding network including first feed lines and a second receiver feeding network including second feed lines.

Abstract: Various embodiments may relate to an antenna. The antenna may include a substrate. The antenna may further include a radiator in contact with the substrate, the radiator including a plurality of grid cells. The antenna may also include a ground structure spaced from the radiator, the ground structure including a plurality of apertures. The antenna may additionally include a plurality of feeding couplers connected to the radiator, each of the plurality of feeding couplers passing through a respective aperture of the plurality of apertures.

Abstract: A compact wideband single feed circularly polarized antenna is provided. The circularly polarized antenna may include a ground plane. The circularly polarized antenna may include a radiating patch with an embedded ring-shaped slot. The circularly polarized antenna may include a via that shorts a round section of the radiating patch surrounded by the ring-shaped slot to the ground plane. The circularly polarized antenna may include a coaxial feed. The inner conductive material of the coaxial feed may be connected to the radiating patch and the outer conductive material of the coaxial feed may touch the ground plane. The circularly polarized antenna may include a slit-slotted parasitic square patch.