Abstract: An object of the present invention is to provide a planar type antenna unit and a planar type wireless device capable of reducing a projecting area of the wireless device. To achieve the above object, the planar type wireless device of the present invention is provided with a grounded planar antenna 10 which includes a radiating element 11 and a ground plate 12, a thin-film battery 20 which includes a positive-electrode current collector 21 opposing a negative-electrode current collector which is formed by the ground plate 12, and a transmitter/receiver IC arranged at a power feeding point 13 of the grounded planar antenna 10 and including a transmitter-receiver circuit which receives power from the negative-electrode current collector of the thin-film battery 20 and the positive-electrode current collector 21 of the thin-film battery 20, and transmits and receives signals by operating the radiating element 11 of the grounded planar antenna 10.

Abstract: The present invention is to provide an antenna device with the isolation among feedpoints being further improved. In order to achieve this goal, the present invention provides an antenna device provided with a substrate having a ground area, and a first conductor, a second conductor and a third conductor. In the antenna, one end of the second conductor is connected to the ground area via a first feedpoint and the other end of the second conductor is connected to the first conductor. A second feedpoint is included serially in the third conductor at any position. Further, at least part of the third conductor is disposed opposite to the first conductor, and both ends of the third conductor are connected to the ground area.

Abstract: A surface-independent antenna that operates consistently and independently of a material of its mounting surface. The antenna includes a ground plane having an outer perimeter, an antenna element having a floating portion and a non-floating portion. The non-floating portion is affixed in a generally parallel orientation above an end of the ground plane, and the floating portion extends beyond the outer perimeter of the ground plane. The antenna also includes a housing including a top portion and a bottom portion, the housing sized to generally encapsulate the ground plane and the antenna element.

Abstract: A method of forming an antenna by providing a first panel including a first conductive sheet secured to a sheet of dielectric material and forming one or more radiating elements and/or a feed network in the conductive sheet by forming grooves in the conductive sheet. The first panel may be a construction grade building panel or a similar suitable panel. The method enables panel antennas to be manufactured using inexpensive materials using inexpensive manufacturing processes.

Abstract: A multi-input and multi-output antenna device is disclosed. The MIMO antenna device comprises two antennas symmetrically disposed on a substrate. Each antenna comprises a T-shaped feeding unit, a radiation unit and a ground unit. The T-shaped feeding unit and the radiation unit are disposed on a first surface of the substrate. The T-shaped feeding unit forms a strip portion and a top portion. The radiation unit has first and second ends. The radiation unit extends from the first end to the second end to form a rectangular region and a spacing. The first end extends parallel to the top portion. The ground unit is disposed along two sides of the strip portion and electrically coupled to the second end. The two strip portions of the two T-shaped feeding units are parallel to and aligned with each other. The two ground units are electrically connected to each other.

Abstract: A communication device including a first conductive plane and an antenna system is provided. The antenna system includes at least a first antenna, a second antenna and a ground plane, and the antenna system is located at a first edge of the first conductive plane. Both the first antenna and the second antenna operate in at least a first band. The ground plane substantially has an inverted T-shape and includes a main ground plane and a protruded ground plane. The main ground plane is coupled to the first conductive plane. The protruded ground plane is located between the first antenna and the second antenna. The ground plane has at least a first slot. A portion of the first slot is located in the protruded ground plane, and two closed ends of the first slot are located in the main ground plane and extend away from each other.

Abstract: An antenna design technique which allows antennas to be self-matched while supporting multi-band and broadband operations. The technique includes adding a raised and curved ground plane section electrically coupled to the ground plane. The curved ground plane section allows for a smooth transition of the surface current hence a boarder bandwidth is achieved. A slit positioned between the ground plane and the ground plane section can also be used to further improve the antenna bandwidth. The technique does not increase the antenna thickness neither its volume, thus allowing application in slim handheld device applications such as flip phones. Using this technique, a narrow band antenna is made broadband to cover several frequency bands of interest. The technique is applied to a quad-band antenna to broaden its bandwidth to become a sept-band antenna. The technique is used to also improve the antenna match at all the seven bands it supports.

Abstract: A multi-band antenna (1) includes a grounding element (10) extending along a horizontal direction and including a side edge (101) with a connecting point (102) and a grounding point (103) distanced from the connecting point by a length, a first radiating element (11) disposed above and parallel to the grounding element (10), a second radiating element (12) apart from the first radiating element and extending upwardly from the side edge of the grounding portion, a connecting element (13) located between the first radiating element and the grounding element, a feeding point (134) disposed on the connecting element (13), and a feeding line (14) including an inner conductor (141) connected to the feeding point and an outer conductor (142) connected to the grounding point. The first radiating element operates in a first frequency band. The second radiating element defines a L-shaped configuration in a side view and operates in a second frequency band.

Abstract: A communication device including a ground plane and an antenna system is provided. The antenna system includes at least two antennas, which are both located at a first edge of the ground plane and operate in at least a first band. The ground plane has at least one slit, and an open end of the slit is located at a second edge adjacent to the first edge. The open end of the slit has a distance of at least 0.2 wavelength of a frequency in the first band to the first edge. When the antenna system operates in the first band, the slit can attract excited surface currents on the ground plane, thereby causing weaker surface currents flowing along the first edge of the ground plane. The coupling between the at least two antennas in the antenna system is hence decreased.

Abstract: An assembly of a chip antenna and a circuit board includes a chip antenna and a circuit board. The circuit board includes a ground layer. The ground layer includes a hollow region formed adjacent to a periphery of the ground layer. The hollow region of the ground layer can be used for configuring an input impedance of the circuit board. The chip antenna is disposed in the hollow region of the ground layer, electrically connecting to the ground layer. The chip antenna includes input impedance. The input impedance of the chip antenna is adjustable to achieve a conjugate impedance match between the chip antenna and the circuit board such that the circuit board and the chip antenna can simultaneously radiate electromagnetic energy.

Abstract: An antenna assembly includes an antenna and a supporting portion. The antenna includes a radiating element, a grounding element and a connecting element connecting the radiating element and the grounding element. The supporting portion is located between the radiating element and the grounding element, and includes a base portion and a complementary portion assembled on the base portion. The complementary portion has an outer surface being flush with one of the surfaces of the base portion.

Abstract: Ground connecting system for microwave plane or helical antenna structures comprising a radiating body that is connected to a power supply source located at ground level. In a plane antenna structure the radiating body is a flat plate with a plurality of ground connecting iron strips applied within appropriate recesses at selected regions thereof, whilst in a helical antenna structure the radiating body comprises a plurality of dielectric cylinders arranged along the circumference and inwardly the radiating surface, each dielectric cylinder located at the top of a coaxial power supply cable and being helicoidally wound with a conducting wire with ground connecting iron strips at the upper and bottom ends thereof. This selective grounding system results in a magnetic field being applied in between grounded and non-grounded regions that provides improved antenna transmission performance and effective isolation of the radiating body from the power supply source.

Abstract: Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS) with an electromagnetic bandgap (EBG) ground plane surrounding the ridged waveguide transition. The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the intrinsic impedance of the surrounding medium. The EBG, which may be comprised of a photonic bandgap material or other metamaterial, allows for better frequency and bandwidth performance in a lower-profile array package, thereby reducing size and weight of the array for applications requiring small size and or low-inertia packaging. In alternate embodiments, radiating elements other than Vivaldi radiators may be used. This configuration also reduces the complexity of the manufacturing process, which in turn lowers cost.

Abstract: An antenna device, includes: a ground plate to which first and second antennas, each including a radiating element and a ground terminal, are connected, with one of the first and second antennas being powered, the ground plate including: a first slit extending from a portion where the ground terminal of one antenna of the first and second antennas is connected to the ground plate, in a direction along to the ground terminal, and a second slit extending from the tip of the first slit in a direction along to the radiating element.

Abstract: An antenna ground structure of a mobile terminal is disclosed. The antenna ground structure of a mobile terminal is arranged to provide the ground pattern on a Printed Circuit Board (PCB) adjacent to the antenna and to electrically connect the ground pattern to the ground unit of the antenna, so that the area of the ground of the antenna may be expanded to improve Specific Absorption Rate (SAR) and communication performance.

Abstract: According to an embodiment of the present invention, the mobile terminal includes, a terminal body, a printed circuit board (PCB) mounted in the interior of the terminal body, and an internal antenna connected to the PCB, and configured to transmit and receive signals, wherein the internal antenna includes a ground formed on the PCB, a radiator connected to the ground and configured to be operable at a first band, and to feed the signals to the PCB, and a ground extension part extending in at least one direction from the ground, and configured to expand a ground surface of the ground in order for the internal antenna to include a second band, which is lower than a first band, as an operation band.

Abstract: An antenna system is provided. The antenna system includes a ground plane, an antenna, a feed cable, a cable connector, and an antenna connector. The ground plane has a first ground side and a second ground side. The antenna operates on the first ground side of the ground plane. The feed cable has a center conductor that is configured to transmit signals to and receive signals from the antenna. The cable connector couples the feed cable with the second ground side of the ground plane. The center conductor of the feed cable is electrically isolated from the ground plane and electrically coupled with the antenna connector. The antenna connector electrically couples the center conductor with the antenna. The antenna connector is connected to the center conductor and the feed cable is substantially parallel to the ground plane from the antenna connector to the cable connector.

Abstract: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antennas. An antenna may have an antenna ground that is configured to form a cavity for the antenna. The antenna ground may be formed on a support structure. The antenna ground may have an opening. The support structure may have a planar surface on which the opening is formed. A folded monopole antenna resonating element and an L-shaped conductive antenna element may be formed in the opening and may be capacitively coupled. The folded monopole antenna resonating element may have an end at which a positive antenna feed terminal is formed. A ground antenna feed terminal may be formed on the antenna ground. A segment of the antenna ground may extend between the ground antenna feed terminal and an end of the L-shaped conductive antenna element.

Abstract: In an antenna apparatus, on an undersurface of a metal cover, a feeding coil module is disposed. In a casing, a printed circuit board is included. A ground conductor, a feeding pin, and a ground connection conductor are disposed on the printed circuit board. When the metal cover is mounted on the casing, the feeding pin is in contact with a connection portion of the feeding coil module and is electrically connected thereto. The ground connection conductor is in contact with the metal cover and connects the metal cover to the ground conductor. The ground connection conductor is disposed at either side of a slit outside an area in which the current density of an induced current flowing through the metal cover is in a range from a maximum value to approximately 80% of the maximum value or one side of the slit in the area.

Abstract: Disclosed herein are a side-face radiation antenna and a wireless communication module. According to an embodiment of the present invention, there is provided the side-face radiation antenna including a via patch part formed at a side portion of a module substrate including laminated substrates to perform a side-face radiation, and formed by metal filled in a plurality of vias arranged at a predetermined interval in the side portion and connected, and a feed line part inserted between intermediate layers of the module substrate, and connected to the via at a center portion of the via patch part. In addition, there is provided the wireless communication module including the side-face radiation antenna.

Abstract: A mobile device includes a substrate, a ground element, and a radiation branch. The ground element includes a ground branch, wherein an edge of the ground element has a notch extending into an interior of the ground element so as to form a slot region, and the ground branch partially surrounds the slot region. The radiation branch is substantially inside the slot region, and is coupled to the ground branch of the ground element. The ground branch and the radiation branch form an antenna structure.

Abstract: An antenna of a laptop device, which can be connected wirelessly to a communication network. The apparent size of the antenna's ground plane (GND), as ‘seen’ from the feed of the monopole radiator (410), is reduced so that the outer peak of the strength of the electric field in the near field of the ground plane falls about at the distance of a quarter wavelength from the outer end of the radiator at the frequencies in the lower operating band of the antenna. This is implemented by arranging a quarter wave resonator (420, GND) tied to the ground plane so that the short-circuited end of this resonator is close to the outer end of the radiator. The capability of the antenna at the frequencies below 1 GHz improves because of the more favourable distribution of the field of the ground plane.

Abstract: A broadband antenna includes a substrate, a ground plane, a radiating path, a shorting path, a first connection path, a second connection path and a coupling path. The ground plane has a shorting point, a first grounding point and a second grounding point. The radiating path has a feeding point and a first connecting point. Two ends of the shorting path are respectively electrically connected with the shorting point and the feeding point, and the shorting path has a second connecting point. Two ends of the first connection path are respectively connected with the first connecting point and the second connecting point. Two ends of the second connection path are respectively connected with the first grounding point and the feeding point. One end of the coupling path is connected to the second grounding point and another end of the coupling path is separated from the shorting path.

Abstract: The hybrid multiple-input multiple-output antenna module includes a grounding unit, a plurality of radiating units, loop units and filter units. The radiating units and the loop units are arranged around a geometric center of the grounding unit and are alternately and symmetrically arranged on the grounding unit. The loop units are arranged along the outer peripheral side of the grounding unit. The filter units are respectively electrically connected to the loop units. The present invention not only has some advantages such as small size, low profile, good isolation, high antenna gain and good radiation properties, but also can replace the external dual-band access-point antenna of the prior art for 2.4/5 GHz operation with no need of an extra diplexer. In addition, the hybrid multiple-input multiple-output antenna module can be hidden in the wireless communication device in order to enhance the appearance of the product.

Abstract: The various embodiments include methods and apparatus relating to manufacturing a PCB assembly. The layers in a stacked arrangement forming the PCB assembly include at least one RF ground layer that extends in a unitary manner beyond the plurality of stacked layers to form an antenna ground plane that spans the portion of the layer within the PCB assembly and the portion of the layer extending beyond the PCB assembly. The extended conductive layer forms a continuous ground plane element along a width of the PCB assembly. The antenna ground plane extension extending beyond the PCB assembly may be flexible, enabling it to be fit within or extend beyond the casing of a small device, such as a watch telephone.

Abstract: A deployable antenna array is provided having at least one boresight axis, and including a first plurality of first antenna array elements and a second plurality of second antenna array elements separate from the first plurality of first antenna array elements, the antenna array being configured for being selectively deployable at least from a stowed configuration to a deployed configuration. A radar system including an antenna array, a telecommunication system including an antenna array, and a method for deploying an antenna array are also provided.

Abstract: A removable jacket for a modular communicator, including a connector for connecting the jacket to a modular communicator that includes an antenna and a ground plane for the antenna, wherein the jacket may be conveniently attached to and detached from the communicator, an extended ground plane for the antenna, and at least one ground contact, for connecting the extended ground plane to the ground plane of the communicator, wherein the ground plane of the communicator is too short for the antenna to resonate at a desired frequency, but the ground plane of the communicator when connected with the extended ground plane, provides a combined ground plane sufficient for the antenna to resonate at the desired frequency.

Abstract: An antenna device includes a substrate, a pair of antenna elements formed on a face of the substrate and which is arranged so as to be axisymmetrical with respect to a symmetrical axis, and a ground section formed on the face of the substrate on which the pair of antenna elements is formed and which is arranged proximal to the pair of antenna elements, wherein the ground section is arranged so as to be axisymmetrical with respect to the symmetrical axis, and the ground section includes a first pair of slit sections notched from an end section and extending in one direction of the symmetrical axis.

Abstract: An antenna structure includes a circuit board and at least one antenna circuit. The circuit board includes a ground area and an antenna area. The antenna area is substantially rectangular-shaped and arranged between the ground area and the periphery of the circuit board. The antenna circuit is formed within the antenna area and includes a feeding segment, a border segment and at least one ground segment. The feeding segment is connected to the border segment and the distance from the border segment to the periphery of the circuit board ranges from 0 to 3 millimeters; a substantially 90° bent-structure is formed within the border segment. One end portion of the ground segment is connected to the ground area. Thus an antenna structure which enables the antenna circuit to be formed within the remaining space on the periphery of the circuit board is provided.

Abstract: A communications structure may include a ground plane, a ground conductor electrically coupled to the ground plane and extending from the ground plane, and a feed conductor. A first antenna branch may be electrically coupled to the ground conductor, with an electrical coupling between the first antenna branch and the ground conductor being spaced apart from an electrical coupling between the ground plane and the ground connector. A second antenna branch may be electrically coupled to the feed conductor, with the first and second antenna branches being spaced apart. In addition, a radio frequency (RF) transmitter and/or receiver may be provided with the ground plane and the feed conductor being electrically coupled to the RF transmitter and/or receiver.

Abstract: A printed antenna is disclosed. The printed antenna includes a substrate and an electrically conductive layer formed on a top surface of the substrate. The electrically conductive layer comprises a first radiation part, a second radiation part, a first feed part, a second feed part, and a grounding part. The first radiation part is connected with the first feed part. The second radiation part is connected with the second feed part. The grounding part is connected with the first radiation part and the second radiation part. In the printed antenna of the present invention, the first feed part and the second feed part feed into two electromagnetic signals so as to implement a dual antenna function. Furthermore, the arrangement is reasonable, and the manufacturing cost is low.

Abstract: Provided is an antenna device with which the degradation of characteristics arising from the fact that the antenna has been miniaturized and made thinner is reduced and in which it is possible to increase the gain and to widen the coverage area by improving the characteristics of the internal antenna. The device is equipped with a circuit board, a wireless circuit component which is mounted on the substrate, an internal antenna which is connected to the wireless circuit component which is mounted on the substrate, a circuit-side ground pattern which is connected to the wireless circuit component which is mounted on the substrate, and a dedicated antenna ground paten which is connected to the internal antenna which is mounted on the circuit board.

Abstract: An antenna system including at least one flexible dielectric sheet, a plurality of individual antennas mounted on the at least one flexible dielectric sheet, a feed network mounted on the at least one flexible dielectric sheet, the feed network being connected to and feeding the individual antennas and at least one conductive ground plane mounted on the at least one flexible dielectric sheet.

Abstract: A dual-polarized antenna includes a ground plane, an inverted-F conductor unit with an inverted-F plane, an inverted-L conductor unit with an inverted-L plane and a stretched ground conductor unit with a T-shaped plane. The inverted-F plane is vertically connected to the inverted-L plane, the T-shaped plane and the ground plane respectively, and the T-shaped plane is vertically connected with the ground plane. Therefore, the inverted-F plane, the inverted-L plane and the stretched ground conductor unit correspond to each side of the ground plane respectively to form a dual-polarized radiation field.

Abstract: A ground plane for reducing multipath reception comprises a convex conducting surface and an array of conducting elements disposed on at least a portion of the convex conducting surface. Embodiments of the convex conducting surface include a portion of a sphere and a sphere. Each conducting element comprises an elongated body structure having a transverse dimension and a length, wherein the transverse dimension is substantially less than the length. The cross-section of the elongated body structure can have various user-specified shapes. Each conducting element can further comprise a tip structure. The azimuth spacings, lengths, and surface densities of the conducting elements can be functions of meridian angle. An antenna can be mounted directly on the conducting convex surface or on a conducting or dielectric support structure mounted on the conducting convex surface. System components, such as a navigation receiver, can be mounted inside the conducting convex surface.

Abstract: A miniaturized multiple input multiple output (MIMO) antenna includes a first antenna element disposed in a first side of a substrate in a round form; a second antenna element in a round form symmetrically with the first antenna element and disposed in the first side of the substrate; and a ground disposed in a second side of the substrate. The first antenna element and the second antenna element are disposed such that electro magnetic waves resonating in the first antenna element and the second antenna element are orthogonally polarized. Accordingly, the antenna size can be reduced. The miniaturized antenna facilitates the component design in the small terminal.

Abstract: According to one embodiment, a coupler apparatus includes a coupling element, a ground plane, and at least one connecting element. The coupling element which is made of a tabular electrical conducting material and in which power feeding is performed to a reference point. The ground plane which is made of a tabular electrical conducting material and partially faces a part of the coupling element. The connecting element which is made of an electrical conducting material, disposed to the ground plane, contact to a metal member provided to a communication apparatus to face the ground plane, and electrically connects the ground plane to the metal member.

Abstract: An antenna device including a dielectric resonator antenna configured to generate resonances in a first frequency band; a printed circuit board electrically connected to the dielectric resonator antenna and configured to process radio signals; and a defected ground structure formed on the printed circuit board and configured to generate resonances in a second frequency band using a current flowing on the dielectric resonator antenna and the printed circuit board.

Abstract: Embodiments include antenna systems capable of producing high quality circularly, elliptically, or linearly polarized radiation. Embodiments include single feed (single-ended or differential) or multiple feed antennas. Embodiments can be electronically configured to adjust the type of polarization of the antenna system. In an embodiment, the polarization of the antenna system is adjusted by adjusting at least the position of a grounding node relative to the position of a feed node. In another embodiment, the polarization of the antenna system is adjusted by configuring one or more input nodes of the antenna between feed nodes, grounding nodes, and open nodes. In another embodiment, the polarization of the antenna system is adjusted by adjusting the phase of a single differential feed of the system.

Abstract: Methods and systems of attaching a radio transceiver to an antenna. At least some of the illustrative embodiments are systems comprising an antenna and an integrated circuit configured to operate as a radio transceiver. The antenna comprises a ground plane having a first edge surface, and an active element having a second edge surface. The ground plane and the active element are retained together such that the first and second edge surfaces are substantially coplanar and form an antenna edge. The integrated circuit is configured to operate as a radio transceiver, and the integrated circuit is mechanically coupled to the edge of the antenna and electrically coupled to the active element.

Abstract: An antenna device, wherein the polarization is improved by an identical antenna or substrate, and a higher gain and a smaller size are provided even when the installation conditions are changed. The antenna includes a base provided with a power feed point electrically connected to a power feed unit in a wireless circuit, an antenna element set up on the base and electrically connected to the power feed point, and a ground pattern provided on the base. The antenna element includes a rise part which rises from the base and an element part extending from the top edge of the rise in any direction in the plane parallel to the base. The ground pattern is divided into at least two ground regions by a boundary, and a ground connection part which electrically and locally connects the ground regions.

Abstract: An antenna device to be inserted in a memory card slot of an electronic device, includes an insulating layer, an antenna element formed on one surface of the insulating layer, and a ground element formed on the other surface of the insulating layer, the antenna element and the ground element being formed such that at least a part of the antenna element and at least a part of the ground element protrude from the memory card slot of the electronic device when the antenna device is inserted in the memory card slot, respectively; and a ground pattern extending in parallel relationship with the antenna element to be electrically connected to at least the ground element.

Abstract: A radiator coupled to an antenna patch disposed along a first end of the radiator, said patch disposed on an insulator. A ground plane is connected to the insulator and a radome is disposed opposite a second end of the radiator. The radome may have a region presenting a convex surface towards the radiator, and the radome has a second region presenting a concave surface towards the radiator. The first end of the conical radiator is the apex of the cone. A ground plane is included and a portion of the ground plane is a planar surface and another portion extends away from the planar portion towards the radome. Also disclosed is a method for forming a radiation pattern by shaping the radome to effectuate a predetermined radiation pattern using localized convex and concave surfaces positioned on the radome at different points in relation to the conical radiator.

Abstract: A digital broadcasting antenna structure includes a substrate having at least a first and a second face; a main antenna arranged on the first face; an amplifier arranged on the first face and electrically connected to the main antenna; a compensating unit arranged on the second face and electrically connected to the main antenna; a bandwidth modulating unit arranged on the second face and electrically connected to the compensating unit; and a grounding section arranged on the second face and electrically connected to the bandwidth modulating unit. The digital broadcasting antenna structure can receive digital broadcasting signals without being restricted to any specific receiving direction, and is applicable to low, intermediate and high frequency bands to therefore achieve the effects of miniaturization, high bandwidth and low return loss.

Abstract: Disclosed herein are exemplary embodiments of interlocking spacers that may be used for suspending transmission lines of a feed network between electrically-conducting ground planes of an antenna assembly. Also disclosed are exemplary embodiments of antenna assemblies including such interlocking spacers. An exemplary embodiment of an antenna assembly generally includes a feed network including one or more transmission lines, a first ground plane, and a second ground plane spaced apart from the first ground plane with a space therebetween. At least one pair of spacers is configured to be interlocked to one another when positioned on opposite sides of a substrate including the transmission lines of the feed network. The spacers are operable for suspending the transmission lines in the space between the ground planes.

Abstract: A method and a mobile terminal of improving radiation performance and Specific Absorption Rate (SAR) of an antenna are provided. The mobile terminal includes a controller for generating a control signal for switching a ground according to a frequency band used by an antenna, and a switch unit for switching a contact point for each frequency band according to the control signal.

Abstract: Provided herein are devices, systems and techniques for establishing a variable height conformal antenna array having a planar backplane. More particularly, positioning of radiating elements can be made insensitive to variable ground height by selecting a suitable radiating element, such as a flared notch and arranging them to have a profile such that their outer extremities are positioned along a conformal, curved shape. Differences in radiator heights can be taken up by the addition of parallel vertical ground planes disposed between the radiating elements and the backplane. Adjacent vertical ground planes effectively form cutoff waveguide sections that naturally isolate the backplane from the radiating elements. The vertical ground planes edges effectively form a virtual curved ground for the radiating elements, following curvature of the array profile. Accordingly, heights of radiating elements are uniform with respect to the virtual ground, while being allowed to vary with respect to the backplane.

Abstract: Provided herein are devices, systems and techniques for establishing a coincident-phased dual polarization array aperture enabling a wide scan capability, while also presenting a bandwidth of at least about 40%. Radiating elements of such an array include a first ground plane extending between lower and upper edges and a first radiating element positioned above the upper edge of the first ground plane. The array elements also include a second ground plane extending between respective lower and upper edges and disposed substantially orthogonal to the first ground plane. A second radiating element is positioned above the upper edge of the second ground plane, such that the first and second radiating elements have different polarizations. Parallel ground planes of adjacent antenna elements of an array of like elements enhance array performance by providing isolation between such radiating elements and backplane ground by way of a phenomenon generally known as waveguide-below-cutoff.

Abstract: A wide-band antenna mounted on a circuit board includes a ground plate, a radiating plate perpendicularly connected to two side edges of the circuit board, and a planar antenna element which includes a base plate, an extending plate, and a ground portion. One side of the base plate defines a gap with a first coupling portion being formed, and a slot adjacent to the gap with a first strip being formed therebetween. A second strip is extended perpendicularly from the first strip. The extending plate is extended outward from one end of the base plate. The ground portion is extended outward from the second strip and connected to the ground plate. The first coupling portion and the ground portion have an interspace to form a capacitive coupling therebetween. A groove is formed among the first and second strips and the ground portion to form a simulation inductance thereamong.

Abstract: A communication electronic device includes a grounding element and an antenna element. There is a first notch, a second notch and a first protruded portion disposed at an edge of the grounding element, and the first notch and the second notch are not located at corners of the edge of the grounding element. The first protruded portion is located between the first notch and the second notch. The antenna element and the grounding element are disposed on different planes. The antenna element has a projection on the grounding element, and the projection covers a portion of the first protruded portion, a portion of the first notch and a portion of the second notch.