An imaging array fed reflector for a spacecraft is included in a spacecraft payload subsystem. The payload subsystem includes a multi-beam antenna including a reflector, a plurality of amplifiers, and a plurality of radiating feed elements, the feed elements configured as a phased array, illuminating the reflector, operable at a frequency having a characteristic wavelength (λ), and configured to produce, in a far field at the reflector, a set of contiguous abutting beams. The amplifiers are disposed proximate to the plurality of radiating feed elements. Each radiating feed element has a respective coupling with at least one respective amplifier of the plurality of amplifiers. Each radiating feed element, together with the at least one respective amplifier, is disposed in a closely packed triangular lattice such that separation between adjacent radiating feed elements is not greater than 1.5λ.

A transparent broadband antenna has two conductive leaves that are configured to be axially symmetric about two orthogonal axes. The transparent broadband antenna is designed as having two back-to-back Vivaldi radiators and four identically curved outer corners. The back-to-back Vivaldi radiators provide high performance from 617 MHz through 7 GHz while preventing return waves that may cause impedance mismatch. The antenna further comprises a feed structure that enables direct coupling from an RF cable to the two conductive leads, obviating the need for a matching circuit and subsequent bandwidth limitations.

An electromagnetic, EM, apparatus includes: a unit cell having at least two dielectric resonator antennas, DRAs; wherein each one of the at least two DRAs is distinctly different from another one of the at least two DRAs; wherein each one of the at least two DRAs is not electromagnetically coupled with another one of the at least two DRAs; wherein the unit cell is configured to operate over a defined overall frequency range; wherein a first DRA of the at least two DRAs is configured to operate over a first frequency range within the overall frequency range; wherein a second DRA of the at least two DRAs is configured to operate over a second frequency range within the overall frequency range that is different from the first frequency range.

An electronic device including an antenna and a conductive pattern formed around the antenna is provided. The electronic device includes a housing including a first plate, a second plate facing away from the first plate, and a side member surrounding a space between the first plate and the second plate, connected to the second plate or integrally formed with the second plate, and including a conductive material, an injection-molding material disposed in the space between the first plate and the second plate in the housing and formed of a non-conductive material, an antenna module including conductive radiators and supported by the injection-molding material, and a conductive pattern disposed on a first surface adjacent to the second plate of the injection-molding material or disposed inside the injection-molding material and disposed adjacent to a part of an edge of the antenna module corresponding to a boundary between the antenna module and the injection-molding material when viewed from the second plate in a direction of the first plate. A partial conductive radiator of the conductive radiators may be disposed to transmit and/or receive a signal through the second plate.

A package structure includes a semiconductor die, an antenna substrate structure, and a redistribution layer. The semiconductor die is laterally wrapped by a first encapsulant. The antenna substrate structure is disposed over the semiconductor die, wherein the antenna substrate structure includes a circuit substrate and at least one antenna element inlaid in the circuit substrate. The redistribution layer is disposed between the semiconductor die and the antenna substrate structure, wherein the at least one antenna element is electrically connected with the semiconductor die through the circuit substrate and the redistribution layer. The at least one antenna element includes patch antennas.

Aspects of the subject disclosure may include, a system that facilitates detecting first electromagnetic waves propagating along a transmission medium are experiencing a first propagation loss, inducing second electromagnetic waves along the transmission medium to mitigate the first propagation loss, detecting that the second electromagnetic waves are experiencing a second propagation loss and inducing third electromagnetic waves along the transmission medium to mitigate the second propagation loss. To reduce radiation losses when transitioning from the first electromagnetic waves to second electromagnetic waves and transitioning from the second electromagnetic waves to the third electromagnetic waves, the system can be further adapted to use differing criteria for each transition. Other embodiments are disclosed.

An antenna device is presented comprising: a conformal antenna body which has a desired geometry corresponding to a front portion of a platform on which the antenna device is to be mounted, and an antenna unit carried by the antenna body. The antenna unit comprises at least one phased array of antenna elements, the antenna elements of each of the at least one array being arranged in a spaced-apart relationship in a closed loop path along a circumference of the antenna body having a desired geometry corresponding to the front portion of the platform on which the antenna unit is to be mounted. Each of the antenna elements is configured as an end-fire antenna element capable of emitting linearly polarized radiation. The array of the antenna elements is operable as a forward looking end-fire antenna array, enabling electronic steering of an antenna beam by controllably modifying phases of the antenna elements of each array.

An antenna device according to an embodiment of the present invention includes a dielectric layer, a first radiator disposed on the dielectric layer in a first direction, a second radiator formed in a shape different from that of the first radiator and disposed on the dielectric layer in a second direction, a first transmission line which extends in the first direction to be connected to the first radiator, and a second transmission line which extends in the second direction to be connected to the second radiator, and intersects the first transmission line with being physically or electrically spaced apart therefrom.

Provided is an antenna module including: a phased array having a plurality of antennas and configured to communicate a first RF signal and a second RF signal, which are polarized in different directions; a front-end radio frequency integrated circuit (RFIC) including a first RF circuit configured to process or generate the first RF signal and a second RF circuit configured to process or generate the second RF signal; and a switch circuit configured to connect each of the first RF circuit and the second RF circuit to a first port or a second port of the antenna module according to a control signal. The first and second ports are each connectable to a back end RFIC that processes or generates a baseband signal.

An antenna assembly has a dielectric substrate. A plurality of end fire antennas in a Yagi-Uda configuration is positioned around edges of the dielectric substrate.