The present disclosure discloses a flexible antenna structure and an electronic device having the same. The flexible antenna structure includes a flexible printed circuit board, a mm-Wave antenna disposed on the flexible printed circuit board and conformal with the flexible printed circuit board, and a non-mm-Wave antenna disposed on the flexible printed circuit board and conformal with the flexible printed circuit board. Compared with the existing art, by means of the flexible antenna structure provided with the mm-Wave antenna and the non-mm-Wave antenna on the flexible printed circuit board, the present disclosure realizes integration of the mm-Wave antenna and the non-mm-Wave antenna, solves a challenge of numerous antennas in the electronic device, and realizes conformation with a bent part of a shell 1, thereby increasing the space utilization rate in a limited space. Furthermore, the overall size and cost cannot be increased, thus improving the competitiveness of a product.

A dual-band shared-aperture antenna array based on a dual-mode parallel waveguide is applicable to the field of wireless communications technologies. The dual-band shared-aperture antenna array includes: a waveguide-substrate integrated waveguide transition structure, a multi-stage cascaded power splitter, a transverse coupling slot, a longitudinal coupling slot, a matching through-hole, a shared-aperture dual-mode parallel waveguide, and a shared-aperture parallel slot array. The entire structure includes two dielectric substrates. A signal is input to the multi-stage cascaded power splitter through the waveguide-substrate integrated waveguide transition structure located on a bottom-layer substrate. The foregoing dual-band shared-aperture antenna array based on a dual-mode parallel waveguide can separately implement a low-band fixed-beam slot array antenna, a high-band multi-beam long slot leaky-wave antenna, or a fixed-beam slot array antenna. It has a simple structure, multiple functions, high integration, a small size and light weight.

An antenna device includes a substrate having a first plane and a second plane, a plurality of cascaded antenna sets are arranged on the first plane, and each cascaded antenna set has a plurality of antenna units and a plurality of microstrip lines. Every two antenna units is electrically connected with one microstrip line, whereby the antenna units are cascaded through the microstrip lines. A signal processor is electrically connected with the middle microstrip line of each cascaded antenna set, and at least one input signal is fed into the cascaded antenna sets, and then transmitted to the outside antenna units from the middle antenna unit, thereby improving a gain of them. The present invention changes a fan-beam radiation field pattern of a cascaded antenna set into a multi-point pencil-beam radiation field pattern or a radiation field pattern with different angles, thereby increasing the overall gain.

Millimeter-wave antenna for 5G applications, comprising a multilayer structure which includes: an upper outer layer comprising a plurality of first radiating elements arranged spaced apart from each other on a first dielectric sublayer; a first inner layer arranged below the upper outer layer and comprising a plurality of through slots suitable for conveying, towards the plurality of first radiating elements, the feeding signals to be radiated; a second inner layer arranged below and adjacent to the first inner layer, the second inner layer comprising at least one dielectric sublayer on which a plurality of conductive lines for conducting the feeding signals to be radiated towards the plurality of first radiating elements; a further layer arranged below and adjacent to the second inner layer and comprising a plurality of first through openings, each of the first through openings being formed on the further layer in a position corresponding to the position of an associated through slot of the plurality of through slots.

The present disclosure improves an antenna characteristic related to high-frequency radio waves. An antenna device includes a first line antenna which includes a straight first feeder line, and a plurality of first antenna elements, each connected at an end to the first feeder line and extending perpendicularly from the first feeder line, and a second line antenna which includes a second feeder line and a plurality of second antenna elements that are line symmetry from the first line antenna with respect to an imaginary line parallel to the first feeder line as an axis of symmetry.

Multi-band antenna arrays and methods of use are provided herein. An example device includes vertical surfaces arranged into a tubular configuration, where each of the vertical surfaces comprising antenna arrays is aligned along the vertical surfaces. The antenna elements are arrayed through a feed network in such a way that antenna gain is increased while elevation beam-width is reduced. The device also includes two or more radios connected to the antenna arrays on the vertical surfaces via the feed network.

Polarization current antennas comprise a dielectric radiator that extends along a z-axis, polarization devices that are positioned adjacent the dielectric radiator along the z-axis that are configured to polarize respective portions of the dielectric radiator and a feed network that is configured to excite the polarization devices with an RF signal to generate a polarization current wave that propagates in the z-axis direction through the dielectric radiator, with acceleration, at (1) a first variable speed that does not decrease as the wave moves along a first portion of the dielectric radiator and that does not increase as the wave moves along the remainder of the dielectric radiator, (2) a second variable speed that does not decrease as the wave moves along the entirety of the dielectric radiator or (3) a third variable speed that does not increase as the wave moves along the entirety of the dielectric radiator.

An antenna array for a radar sensor, having an antenna designed as a group antenna and operable as a transmit antenna and having an antenna configuration operable as a receive antenna, wherein the array has, in addition to the first antenna designed as a group antenna, a second antenna operable as a transmit antenna that has a smaller aperture than the first antenna, and the first and second antenna are designed for the transmission of radar waves having polarization orthogonal to one another, and the antenna configuration operable as a receive antenna is sensitive to both directions of polarization.

A multi-band single feed dielectric resonator antenna (DRA) and DRA array are provided. The DRA is made of a dielectric material having a first and second antenna regions wherein the second antenna region has a different dielectric constant than the first antenna region. The dielectric material is supported by a feeding substrate. The feeding substrate has a top surface ground plane having a slot positioned below the first antenna region of the dielectric material and a microstrip feeding line on the bottom surface in alignment with the slot on the top surface ground plane.

A multi-piece fastener for mounting a parasitic element to a reflector of a base station antenna comprises first and second elements. The first element or the second element is configured to be anchored on the reflector. The first element is configured to space apart and electrically isolate the parasitic element from the reflector. The first element has a first clamping element, the second element has a second clamping element, and the first clamping element and the second clamping element are configured to clamp the parasitic element therebetween.