A method and apparatus for electronically steering an antenna system. The apparatus comprises a dielectric substrate, a plurality of radiating spokes, and a number of surface wave feeds. The plurality of radiating spokes is arranged radially with respect to a center point of the dielectric substrate. Each radiating spoke in the plurality of radiating spokes forms a surface wave channel configured to constrain a path of a surface wave. Each of the number of surface wave feeds couples at least one corresponding radiating spoke in the plurality of radiating spokes to a transmission line that carries a radio frequency signal.

Described embodiments include an antenna system and method. The antenna system includes a surface scattering antenna that has an electromagnetic waveguide structure and a plurality of electromagnetic wave scattering elements. The plurality of electromagnetic wave scattering elements are distributed along the waveguide structure, have a respective activatable electromagnetic response to a guided propagating electromagnetic wave, and produce a controllable radiation pattern. A gain definition circuit defines a radiation pattern configured to acquire a possible interfering signal. The defined antenna radiation pattern has a field of view covering at least a portion of an undesired field of view of an associated antenna. An antenna controller establishes the defined radiation pattern in the surface scattering antenna by activating the respective electromagnetic response of selected electromagnetic wave scattering elements. A correction circuit reduces an influence of the received possible interfering signal in a contemporaneously received signal by the associated antenna.

An internal conductor device for a waveguide radiator, in particular for a waveguide radiator has at least one slotted waveguide, at least one support rail, at least one dielectric unit that is arranged on the at least one support rail and comprises at least one dielectric element, and has at least one internal conductor that is arranged on the at least one dielectric unit, wherein the at least one internal conductor is fixed at least substantially mechanically on the at least one dielectric element and/or that the at least one dielectric element is fixed at least substantially mechanically on the at least one support rail.

The present disclosure provides a waveguide, including: a metallic housing having the shape of a cuboid and an opening disposed in a side thereof, a slow-wave medium accommodated in the metallic housing, feeding probes respectively located at both ends of the metallic housing and inserted into the slow-wave medium through the metallic housing, a slit plate covering the opening of the metallic housing and comprising a plurality of slits, a plurality of diodes and photodetectors disposed on the slit plate corresponding to the slits in a one-to-one relationship, each diode crossing the corresponding slit. The present disclosure also relates to a wave beam adjusting device comprising the waveguide, a wave beam adjusting method applicable to the wave beam adjusting device, and a method for manufacturing a photodetector applicable to the waveguide.

Methods and systems are disclosed for an antenna system capable of optimal broadside radiation. In certain embodiments, a system may include a flexible and thin polyethylene terephthalate (PET) substrate stack having a predetermined length. The system may include a printed circuit board (PCB) fabrication of one or more Leaky-Wave Antenna (LWA) structures on the PET substrate stack. The one or more LWA structures have a bent-stub folded LWA configuration have longitudinal asymmetry and transverse asymmetry for a broadside frequency. The bent-stub folded LWA configuration comprises a plurality of conductively unit cells having a unit cell period. Each unit cell of the plurality of conductively unit cells has a folded main feed-line and a bent stub pair with two angularly bent radiating stubs. Embodiments are structured to increase radiation per-unit length and suppress open stopband (OSB).

A holographic antenna, a beam control method, an electronic device and a computer readable medium are provided. The holographic antenna includes: a dielectric substrate including a first and second surfaces, a radiation layer on the first surface, a reference electrode layer on the second surface and switching units. Slit openings are in the radiation layer and in a one-to-one correspondence with the switching units. The holographic antenna further includes: a calculation part configured to obtain an excitation amplitude of each slit opening through an amplitude sampling function according to position information, a target pointing angle and a simulation frequency of the slit opening; a processing part configured to discretize the excitation amplitude of the slit opening to obtain a discretization result; and a control part configured to control a switching state of a corresponding switching unit according to the discretization result, to control the switching state of the slit opening.

A millimeter wave RF phase shifter includes an input and an output. The RF phase shifter further includes a transmission line coupled to the input. The transmission line can include a plurality of taps. The RF phase shifter can further include a plurality of switching devices. Each switching device can be coupled between the output and a corresponding tap of the plurality of taps. The RF phase shifter can include a control device operatively coupled to the plurality of switching devices. The control device can be configured to control operation of the plurality of switching devices to selectively couple one of the plurality of taps to the output to control a phase shift of a RF signal propagating on the transmission line.

The present disclosure provides an antenna device and a manufacturing method therefor, a control method, and an electronic device. The antenna device includes a first and a second substrate structure, and a liquid crystal layer between the first and the second substrate structure. The first substrate structure includes a first substrate and multiple antenna patches. The second substrate structure is on the side of the multiple antenna patches away from the first substrate, and includes a second substrate and a metal layer having multiple gaps. One gap corresponds to one antenna patch, the region where the orthographic projection of each gap on the first substrate overlaps that of the corresponding antenna patch is a first region, the orthographic projection of each gap on the first substrate further includes a second region and a third region, and the third region is located between the second region and the third region.