Abstract: A multi-antenna system and wireless device comprising same are provided. The multi-antenna system comprises two open-slot antennas each coupled to its own resonant cavity. The two resonant cavities may be adjacent with common short circuit elements across their boundary. The short circuit elements may include apertures through which wires can be passed. The multi-antenna system may comprise two spaced-apart plates, each plate defining half of the first open-slot antenna, half of the second open-slot antenna, half of the first resonant cavity, and half of the second resonant cavity. The multi-antenna system can be fitted into a low-profile wireless device having a top face with a surface area about equal to or greater than that of the plates. A display such as a touch-screen may be fitted to the top face. The plate configuration may provide for a relatively large surface over which current can flow during antenna operation.

Abstract: An antenna device for generating a reconfigurable high-order mode conical beam, includes a micro-strip radiator having multiple feeding points, wherein one of the feeding points is a fixed feeding point, and a feeding unit for providing two signals having a same amplitude and a preset phase difference, wherein one of the two signals is fed through the fixed feeding point and the other is fed through any one of remaining feeding points. A mode reconfigurable switching unit, connected to the feeding unit, performs a switching operation to select any one of the remaining feeding points so that the other signal is feed through the selected feeding point in accordance with mode control data.

Abstract: Embodiments relate to two-dimensional antenna arrays. In one embodiment, an antenna array includes single-ended fed patch antennas and differentially fed patches. Field polarization of the radiated and/or received EM waves is different by 90 degrees for each different antenna type. Thus, an aligned polarization pattern can be achieved using orthogonal feeding direction for single-ended and differential patches. Embodiments can be used in radar or virtually any other 2D array antenna system.

Abstract: Electronic devices may be provided with antenna structures and antenna isolation element structures. An antenna array may be located within an electronic device. The antenna array may have multiple antennas and interposed antenna isolation element structures for isolating the antennas from each other. An antenna isolation element structure may have a dielectric carrier with a longitudinal axis. A sheet of conductive material may extend around the longitudinal axis to form a conductive loop structure. The loop structure in the antenna isolation element may have a gap that spans the sheet of conductive material parallel to the longitudinal axis. Electronic components may bridge the gap. Control circuitry may adjust the electronic components to tune the antenna isolation element.

Abstract: A portable communication device and an adjustable antenna thereof are disclosed herein. The portable communication device includes a substrate, the adjustable antenna and a control circuit. The adjustable antenna includes an antenna body, an adjusting element, a feeding terminal and a ground terminal. The antenna body has multiple conductive portions and is disposed above the substrate. The adjusting element is coupled between the conductive portions. The feeding terminal and the ground terminal extend from the antenna body and are coupled to the substrate. The control circuit feeds a first control signal and a second control signal respectively through the feeding terminal and the ground terminal to the adjusting element, so as to adjust an electrical length of the adjustable antenna.

Abstract: Laminated vehicle glazing with a conductive panel defining slot antennas between the conductive panel and the metal surround of the vehicle with connecting leads, and a camera or other device in an area where the device and the antenna do not overlap. Locating the device in a different position to the slot antenna reduces the electromagnetic interference that the slot antenna experiences and prevents malfunction of the device where the slot antenna is used to transmit radio signals.

Abstract: A reflectarray, including: a substrate; and a plurality of patches formed on each of areas into which a principal surface of the substrate is divided, wherein the plurality of patches are formed by including a gap.

Abstract: An antenna capable of receiving both left-hand circularly polarized (LHCP) signals and right-hand circularly polarized (RHCP) signals, and outputting both signals on a single feed. The antenna includes two coplanar concentric patches. The inner patch is substantially square. The outer patch surrounds the inner patch to define a gap therebetween. A resonant parallel inductive/LC circuit interconnects the two patches. The circuit includes a plurality of printed traces within the gap and interconnecting the concentric patches. The gap and each trace function as an LC circuit.

Abstract: An integrated distributed active radiator (DAR) device includes first and second conductors disposed adjacent to each other. The conductors define curves which close on themselves to within a distance of a gap. The first conductor first end is electrically coupled to the second conductor second end across the gap. The second conductor first end is electrically coupled to the first conductor second end across the gap. At least one active element is configured to produce a self-oscillation current at a frequency f0. The self-oscillation current has a first direction in the first conductor and a second direction in the second conductor. The DAR device is configured to generate a harmonic current which has the same direction in both conductors. The DAR device is configured to efficiently radiate electromagnetic energy at a harmonic frequency and to substantially inhibit the radiation of electromagnetic energy at the frequency f0.

Abstract: A patch antenna including: a dielectric substrate having a vertical through-hole and a recess that is open downward, the recess having an inner periphery greater than a diameter of the through-hole, the recess being connected to the through-hole; a radiation electrode provided on an upper surface of the dielectric substrate; a ground electrode provided on a lower surface of the dielectric substrate; and a feed pin inserted into the through-hole such that a lower end portion of the feed pin is arranged inside the recess, the feed pin electrically connected to the radiation electrode through an upper end portion of the feed pin, wherein first solder is applied to the lower end portion of the feed pin, and a lower end of the feed pin and a lower end of the first solder are flush with or above a lower surface of the ground electrode.

Abstract: An integrated radio frequency (RF)/optical window includes an RF radome portion provided from a composite material substantially transparent to RF energy disposed about an optical window configured for use with an optical phased array.

Abstract: An antenna device includes a base, an adjusting pole perpendicularly extending up from the base, a slide apparatus slidably mounted to the adjusting pole, a supporting pole forming a rack and slidably installed in the slide apparatus along a direction perpendicular to a lengthwise of the adjusting pole, and an antenna mounted to one end of the supporting pole. The slide apparatus includes a casing and a motor installed in the casing. The casing defines two opposite guiding holes for the supporting pole extending through. The motor includes a driving roller meshing with the rack. The motor drives the driving roller to rotate and mesh with the rack to allow the antenna to move along the direction perpendicular to the slide direction of the slide apparatus.

Abstract: There is provided an antenna characteristic measuring system which includes a measuring point scanner to scan a measuring point, an antenna gain measuring device which measures an antenna gain of a measured antenna at a plurality of the measuring points, determines a reference point among the plurality of the measuring points, and obtains antenna gain difference values between the antenna gain at the reference point and each of the antenna gain at the plurality of the measuring points other than the reference point, and an antenna characteristic measuring device which measures a reference antenna characteristic of the measured antenna at the reference point and obtains an antenna characteristic of the measured antenna at each of the plurality of the measuring points other than the reference point by correcting the reference antenna characteristic with each of the difference values.

Abstract: An antenna assembly is provided, including a first radiative element. The first radiative element is oriented such that a first end of the radiative element is operatively connected to an antenna feed and at least a portion of the radiative element includes a first conical, helical coil. The first conical, helical coil reaches a maximum diameter at a point farthest from the antenna feed. A counterpoise structure includes one of an electrically conductive ground structure operatively connected to a ground associated with the antenna feed and a second radiative element operatively connected to the antenna feed and the first radiative element at the antenna feed.

Abstract: Described herein are antenna designs and configurations that provide flexible solutions for creating compact antennas with multiple-band capabilities. For example, a hybrid PIFA-monopole antenna configuration and design is described. As another example, non-planar (e.g., orthogonal) and composite radiating structures incorporating various radiating element and ground plane configurations are described. Connective structures are also described for providing physical rigidity and ground plane connectivity to composite radiation elements. In embodiments described herein of composite radiating structures, multiple antennas may be included through passive radiating elements potentially combined with active circuitry. Composite radiating structures with multiple antennas may be used in multiple-in and multiple-out (MIMO) antenna applications.

Abstract: A circularly polarized ceramic patch antenna having an extended ground for a vehicle is provided. The extended ground is formed under a patch antenna, has a predetermined thickness, is formed of a metal conductor having the same shape as the patch antenna, and is electrically connected to a ground plane formed on a board. The thickness of the extended ground is adjusted, so that it is possible to adjust radiation efficiency of the ceramic patch antenna that operates at a specific frequency band. Thus, the ceramic patch antenna has the effect of improving directionality of a radiation pattern formed in a direction parallel to the ground plane, and the effect of reducing a null point caused by a field effect to increase an antenna gain thereof.

Abstract: An electronic device cover includes a base body, a first antenna and a second antenna. The first antenna is at least partially made by laser direct structuring. Both the first antenna and the second antenna are located in the base body by insert-molding.

Abstract: The invention relates to data transmission in radio communication networks, the object of the invention multiband directional antenna comprising a multidimensional array structure and having more than one director working in active or passive mode according to the working frequency.

Abstract: A directional slot antenna comprises a radiating component coupled to a reflector. A reflector spacing gap or cavity between the radiating component and the reflector has a height which is less than a predetermined height of a free-space reflector spacing cavity associated with desired gains for frequencies of interest. A dielectric material insert is positioned within the reflector spacing cavity and fills or partially fills the cavity. The reduced-height cavity including the dielectric material insert provides an increased electrical separation between the radiating component and the reflector that corresponds to the predetermined height of the free-space reflector spacing cavity.

Abstract: The disclosure discloses a remote radio unit, which comprises: a common slot, an antenna and a plurality of function modules; wherein the common slot is connected with the antenna and comprises a plurality of slots, and each function module is inserted in a different slot of the common slot respectively. The disclosure can solve the problem that a remote radio unit is extended inconveniently while adding frequency bands and the whole remote radio unit will be greatly affected in most cases when a fault occurs in the module supporting one frequency band.