Abstract: The present disclosure provides technology that proposes an ultra-high frequency band (mmWave band) vertical polarization antenna having a new structure applicable to a slim planar structure (e.g., a terminal).

Abstract: An antenna apparatus includes: a feed line; a first ground layer including surface disposed above or below the feed line and spaced apart from the feed line; and an antenna pattern electrically connected to an end of the feed line and configured to transmit and/or receive a radio frequency (RF) signal, wherein the first ground layer includes a first protruding region protruding in a first longitudinal direction of the surface toward the antenna pattern and at least partially overlapping the feed line above or below the feed line, and second and third protruding regions protruding in the first longitudinal direction from positions spaced apart from the first protruding region in opposite lateral directions of the surface.

Abstract: An antenna element comprises a housing having a base and a conducting plate, and a feeding element. The housing has a cavity formed between the base and the conducting plate. The conducting plate has a radiating slot with a length and a width that extends longitudinally along a first axis and a second axis, respectively. The radiating slot has a first and a second edge along the first axis. The feeding element has a feeding point, a feeding line, and a stub. The feeding line extends along the second axis of the conducting plate across the width of the radiating slot such that a first end of the feeding line is coupled with the feeding point on one side of the radiating slot, and a second end of the feeding line extends past the second edge, and the stub extends laterally of the feeding line.

Abstract: A substrate integrated waveguide fed antenna. The antenna includes an electric dipole, a parasitic patch arrangement operably coupled with the electric dipole, and a feed structure. The feed structure includes a substrate integrated waveguide operably coupled with the electric dipole for exciting the electric dipole. A slotted conductive surface with a slot is arranged between the electric dipole and the feed structure for operably coupling the feed structure with the electric dipole.

Abstract: An Antenna Radiating Element provides 4 simultaneous isolated radiation ports that can be used to increase the orders of MIMO communication for wireless applications. An antenna array that contains a plurality of the Quad-Port Radiating Elements (QPRE). An antenna that contains multiple arrays of the QPRE in single-band or Multi-Band configurations that produces 2× the available polarization states without the need to increase the antenna aperture or reduce the size of the antenna array.

Abstract: Antenna assemblies are described herein. In particular, described herein are multi-focal-point antenna devices and compact radio frequency (RF) antenna devices. Any of these assemblies may include a primary feed that includes a single patterned emitting surface from which multiple different beams of RF signals are emitted corresponding to different antenna input feeds each communicating with the patterned antenna emitting surface. The antenna assembly is therefore capable of emitting beams in the same direction having different polarizations using a single primary feed.

Abstract: The smart multiband antenna system is used in a communications system having an array of multiple identical antennas configured to operate as a single multiband antenna, such as a phased array. A tunable or variable capacitor, such as a varactor, is integrated between each adjacent pair of antennas in the array to adjust the electrical length or spacing between the antennas in order to optimize antenna performance characteristics, such as beam steering. For a phased array, the tunable capacitor may be adjusted to maintain an antenna spacing of ?/2 between adjacent antennas. The multiband antenna is designed to operate on several bands, and may be used for efficient multiplexing.

Abstract: Examples disclosed herein relate to a multi-layer, multi-steering (“MLMS”) antenna array for millimeter wavelength applications. The MLMS antenna array includes a superelement antenna array layer comprising a plurality of superelement subarrays. In some aspects, each superelement subarray of the plurality of superelement subarrays includes a plurality of phase compensated slots for radiating a transmission signal. The MLMS antenna array also includes a power division layer configured to serve as a feed to the superelement antenna array layer. The MLMS antenna array also includes a top layer disposed on the superelement antenna array layer. The top layer may include a superstrate or a metamaterial antenna array. Other examples disclosed herein include a radar system for use in an autonomous driving vehicle.

Abstract: An antenna module and a terminal applying the antenna module are disclosed. The antenna module includes an antenna array configured with a plurality of antenna units and a radio-frequency phase shifting system. The antenna array and the radio-frequency phase shifting system are integrated on a circuit substrate to form an independent module. Further, the antenna unit of the antenna module may adopt a solution of a microstrip patch antenna structure loading a short-circuit pillar to generate multiple resonances, thereby expanding the bandwidth of the antenna unit. After the antenna array is formed, the antenna modules may be further arranged perpendicular to each other to expand and achieve large-angle scanning and polarization diversity functions. The disclosed antenna module has a simplified structure and may be applied to 5G communication. It has the advantages of easy system integration, low-profile miniaturization, wide radiation bandwidth, and large-angle scanning.

Abstract: An antenna array includes a printed circuit board including printed circuit board elements circumferentially disposed at locations on a surface of the printed circuit board. The printed circuit board elements are disposed in opposing pairs at diametrically opposite locations and include a first member and a second member. The first member intersects the second member which is curved. The antenna array can be an ultra-ultra wide band (UUWB) wavelength scaled array (WSA) tightly coupled dipole array (TCDA) active electronically scanned array (AESA) aperture.

Abstract: A connector includes a first antenna configured to transmit first signals in a first direction and with a first polarization, a second antenna coupled to the first antenna and configured to transmit second signals in a second direction that is parallel to the first direction and with a second polarization that is orthogonal to the first polarization, and a third antenna coupled to the first and second antennas and configured to transmit third signals in a third direction that is parallel to the first direction and with the first polarization, wherein the second antenna is positioned between the first and third antennas.

Abstract: An antenna system loaded on a vehicle according to the present invention includes a telematics module, and antenna modules coupled to both side surfaces of the telematics module, wherein the antenna modules have a plurality of antenna elements disposed therein so as to perform Multiple-Input and Multi-Output (MIMO) by transmitting or receiving a plurality of first signals according to a first communication system through the plurality of antenna elements, whereby a plurality of communication services can be provided through a flat vehicle antenna.

Abstract: A waveguide adapter for, e.g., a wideband or multiband communication feeder assembly can include first and second waveguides for carrying polarized signals. A first turnstile junction is connected with the first waveguide, configured to convert the first polarized signal from the first waveguide into linearly polarized signals that can be passed along linear waveguides. Each one of the linear waveguides has a common effective length, and the linear waveguides diverge from the first turnstile junction and converge at a second turnstile junction operably connected with the second circular waveguide. The linear waveguides can be flexible or rigid, and can be bent to accommodate routing around various components of the communication system, as well as to facilitate a change in orientation as between the second waveguide and the first waveguide.

Abstract: An antenna structure includes a substrate, a first polarization antenna group, and a second polarization antenna group. The substrate is defined with a first axis and a second axis. The first polarization antenna group and the second polarization antenna group are disposed on the substrate. The first polarization antenna group includes a first dipole antenna, a second dipole antenna, and a first wire. The first wire is separate from and coupled to the first dipole antenna and the second dipole antenna. The second polarization antenna group includes a third dipole antenna, a fourth dipole antenna, and a second wire. The second wire is separate from and coupled to the third dipole antenna and the fourth dipole antenna.

Abstract: The present disclosure relates to a dual-polarized antenna comprising a dipole radiator, a resonant cavity radiator and a reflector. The resonant cavity radiator is arranged below the reflector and radiates through a slot in the reflector, and the dipole radiator is arranged above the reflector, with a signal line and/or a carrier of the dipole radiator extending through the slot.

Abstract: A dual-band antenna for global positioning system includes a plurality of dipole antenna arranged to operate in a L1 band and a L2 band; a back cavity structure mounted to the plurality of dipole antennas, wherein the plurality of dipole antennas are at least partially accommodated within a back cavity defined by the back cavity structure; and a feed network provided on the back cavity structure and coupled to the plurality of dipole antennas.

Abstract: A multi-band antenna includes a plurality of dipole antenna each arranged to operate in a frequency band different from each other; a back cavity structure mounted to the plurality of dipole antennas, wherein the plurality of dipole antennas are at least partially accommodated within a back cavity defined by the back cavity structure; and a feed network provided on the back cavity structure and coupled to the plurality of dipole antennas.

Abstract: In an antenna, the outer conductor is formed of a first linear conductor, the first linear conductor having a length corresponding to one wavelength of a right-handed circularly polarized wave and circularly extended from a first feed point to a second feed point. The inner conductor is disposed inside the outer conductor and formed of a second linear conductor, the second linear conductor being different from the first linear conductor and having a length determined based on one wavelength of a left-handed circularly polarized wave. The inner conductor has a starting point of the second linear conductor connected to the first feed point and has an end point of the second linear conductor kept free from connection at a location inside the outer conductor, and causes current to flow in a direction opposite to the current flow in the outer conductor.

Abstract: A directional antenna apparatus capable of radiating radio signals in various directions may include first, second, third and fourth main director elements forming a square; first, second, third and fourth sub-director elements extending from the center portion of the square to the first, second, third and fourth main director elements, respectively, inside the square; first, second, third and fourth radiators disposed in parallel with the first, second, third and fourth main director elements, respectively, outside the square; and a selection switch configured to selectively connect any one of the first, second, third and fourth radiators to an external device.

Abstract: Exemplary embodiments are disclosed of antenna assemblies configured for reception of television signals, such as high definition television (HDTV) signals. In an exemplary embodiment, an antenna assembly generally includes a VHF antenna element and a UHF antenna element. The VHF antenna element and the UHF antenna element may be parasitically coupled without a direct ohmic connection between the VHF antenna element and the UHF antenna element. The antenna assembly may be configured to be operable for receiving VHF and UHF high definition television signals without using a diplexer and a VHF balun.

Abstract: A reflectarray antenna includes a plurality of antenna conductors patterned on two or more planar surfaces. The antenna conductors include a first set of antenna conductors having a geometric arrangement to beamform and radiate a first wireless signal over a first frequency band. A second set of antenna conductors have a geometric arrangement to beamform and radiate a second wireless signal over a second frequency band that is distinct from the first frequency band. The first set of antenna conductors are formed on the two or more planar surfaces to enable operation at the first frequency band. The second set of antenna conductors are formed on the two or more planar surfaces to enable the second frequency band.

Abstract: An antenna system comprises a first antenna element adapted to a first frequency band and a second antenna element adapted to a second frequency band different from the first frequency band. The first antenna element includes a radiating structure having a planar radiating element and configured to radiate at a frequency in the first frequency band and a band-stop filter having a planar conductive element and configured to attenuate a current flow at a frequency in a second frequency band different from the first frequency band. The planar conductive element is arranged in a meander pattern, has an end electrically connected to the planar radiating element, extends in a direction substantially parallel to the planar radiating element, and has an electrical length substantially equal to ¼ of a wavelength of the frequency in the second frequency band.

Abstract: A multi-band antenna includes a ground plane and an antenna element. The antenna element includes a first radiation portion and a second radiation portion. A first end of the first radiation portion is coupled to a feeding point, and a second end of the first radiation portion is a first open end. A first end of the second radiation portion is coupled to a ground plane, and a second end of the second radiation portion is a second open end. The second radiation portion is not electrically connected to the first radiation portion, and a coupling distance exists between the second radiation portion and the first radiation portion. The antenna element operates in a first band through the first radiation portion and operates in a second band through the second radiation portion. The frequency in the first band is lower than the frequency in the second band.

Abstract: An antenna device, including an antenna element constituted by a conductor, having a tubular shape, and including a long notch section formed to extend in an axial direction in at least a part of a side surface, a capacitor formed to bridge end portions of the notch section in a short direction, substantially at a center of the notch section in a longitudinal direction, and a power feed point formed at a position which is apart from the capacitor to a side of one end portion of the notch section in the longitudinal direction and corresponds to a side of one end portion of the notch section in the short direction.

Abstract: The present subject matter relates to devices, systems, and methods for beam steering in which a configurable antenna assembly includes a first antenna element configured to radiate in a first broadside direction and a second antenna element configured to radiate in an endfire direction. In some embodiments, the configurable antenna assembly further includes a third antenna element configured to radiate in a second broadside direction substantially opposite to the first broadside direction. Such devices, systems, and methods can further be configured such that one of the antenna elements is selectively connected to a common signal feed.

Abstract: An antenna apparatus includes a feed via, a patch antenna pattern which is electrically connected to a first end of the feed via, a plurality of first conductive array patterns, respectively disposed to be spaced apart from the patch antenna pattern and arranged to correspond to at least a portion of a side boundary of the patch antenna pattern, and a first conductive ring pattern spaced apart from the patch antenna pattern and the plurality of conductive array patterns and configured to surround the patch antenna pattern and the plurality of conductive array patterns.

Abstract: An antenna structure includes a dielectric substrate, a ground plane, and a main radiation element. The main radiation element and the ground plane are disposed on two opposite surfaces of the dielectric substrate. The main radiation element has a first loop-shaped slot and a second loop-shaped slot. The first loop-shaped slot is inside the second loop-shaped slot. The first loop-shaped slot includes a first slot, a second slot, a third slot, a fourth slot, a pair of first partition slots, a pair of second partition slots, a pair of third partition slots, and a pair of fourth partition slots. The first slot, the second slot, the third slot, and the fourth slot are interleaved with the first partition slots, the second partition slots, the third partition slots, and the fourth partition slots.

Abstract: A mobile device includes a main circuit board, a PCB (Printed Circuit Board), a feeding connection element, a grounding connection element, a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, and a fifth radiation element. The first radiation element is coupled to the feeding connection element. The second radiation element is coupled to the feeding connection element. The third radiation element is coupled to the grounding connection element. The fourth radiation element is coupled to the first radiation element. The fifth radiation element is coupled to the feeding connection element. The feeding connection element, the grounding connection element, the first radiation element, and the second radiation element are disposed on the main circuit board. The third radiation element, the fourth radiation element, and the fifth radiation element are disposed on the PCB.

Abstract: An antenna array system can including a plurality of antenna subarray panels assembled together to form a single wavelength scaled aperture (WSA) antenna array. Each antenna subarray panel can include a corresponding plurality of antenna elements such that at least two antenna elements of the plurality of antenna subarray panels have different antenna element sizes. The antenna array system can include one or more beamformer circuits. Each of the one or more beam former circuits can be communicatively coupled to at least one of the plurality of antenna subarray panels. For each adjacent pair of the plurality of antenna subarray panels, each antenna element adjacent to a gap separating the adjacent pair of antenna subarray panels along an elongated boundary of the gap is greater than a predetermined value. The predetermined value can be determined based on a predefined width of the gap separating the pair of adjacent antenna subarray panels.

Abstract: A network device comprising, a first radio module configured to transmit and receive first radio signals in a first frequency band, a first antenna array configured to transmit and receive the first radio signals for the first radio module in the first frequency band, a second radio module configured to transmit and receive second radio signals in the first frequency band, a second antenna array configured to transmit and receive the second radio signals for the second radio module in the first frequency band, wherein, in operation, the first radio module and the second radio modules function concurrently using the first frequency band while at least 40 dB of antenna isolation is maintained between the first antenna array and the second antenna array.

Abstract: An antenna assembly includes: a support member having opposing first and second sides; an input electrical contact and an output electrical contact; a first array of transmission patch elements supported on the first side and connected to the input electrical contact, the first array configured to receive an input signal via the input electrical contact and generate outbound radiation according to the input signal; a second array of reception patch elements supported on the first side and connected to the output electrical contact, the second array configured to receive inbound radiation and generate an output signal at the output electrical contact according to the outbound radiation; the first array and the second array having a common phase center.

Abstract: The present disclosure sets forth various embodiments of power reception kits and methods. In one embodiment, a guided surface wave receive structure is configured to obtain electrical energy from a guided surface wave travelling along a terrestrial medium. Power output circuitry having a power output is configured to be coupled to an electrical load. The electrical load is experienced as a load at an excitation source coupled to a guided surface waveguide probe generating the guided surface wave. At least one connector is configured to couple the at least one guided surface wave receive structure to the power output circuitry.

Abstract: An antenna device includes a housing defining an interior cavity, a UHF antenna element, two VHF antenna elements and two WiFi antenna elements. The antenna elements are mounted to the housing and are selectively adjustable between a vertical, upright position and a folded, horizontal position. The antenna elements are situated on the housing to provide an omni-directional antenna pattern for receiving broadcast signals. Antenna circuitry provided within the interior cavity of the housing receives signals from the antenna elements and generates an output signal that is provided to at least one output connector mounted on the housing or on one or more signal cables extending therefrom and to an external electronic device connected thereto.

Abstract: The present invention relates to the field of communications technologies and discloses an antenna system, and the antenna system includes: a radiating element, at least one strip line ground plane and signal cavity, and at least one inner conductor, where the radiating element includes radiation arms, radiation baluns, and feeding inner cores; the strip line ground plane is used as a reflective surface of the radiating element; the baluns of the radiating element are electrically connected to the strip line ground plane, and all of at least two feeding inner cores of the radiating element are electrically connected to one inner conductor. Therefore, a feeding manner of an existing array antenna can be optimized very conveniently, assembly time is greatly reduced, quantities of welding points and cables are reduced, and consistency and reliability are improved.

Abstract: A loop antenna includes: a substrate; a feeding element including a first portion and a second portion which are provided on a first surface of the substrate, have electrical conductivity, are fed with electric power from a feeding point, the first portion extending from the feeding point in a first direction, the second portion extending from the feeding point in a second direction; and an emitting element which has electrical conductivity, is formed in a loop shape in such a manner that the emitting element surrounds the substrate along a surface perpendicular to the first surface, and includes a first end provided so as to electromagnetically couple to the first portion on the first surface and a second end provided so as to electromagnetically couple to the second portion on the first surface, a gap being disposed between the first end and the second end.

Abstract: A wide band omni directional antenna, in which the radiation parameters are automatically correspond to the frequency of the emitted signal. It can be made by printing and used in small size transducers, for example in cellular telephones. The antenna radiator is formed as an electrically conductive plate, the electrically conductive plate which has a shape of a non-rectangular triangle having two lateral sides of different lengths with first ends of the lateral sides connected with one another in a point connectable to an electric signal source and other opposite second ends, and the electrically conductive plate also has a side which is opposite to the point connectable to the electric signal source and connects the opposite second ends of the lateral sides with each other thus forming a third side of the triangle of the non-rectangular triangle. The antenna can be built by using two joined triangles.

Abstract: RF communications circuitry, which includes a first RF antenna element, a second RF antenna element, a third RF antenna element, and a fourth RF antenna element is disclosed. The first RF antenna element is proximal to the second RF antenna element. The third RF antenna element is proximal to the fourth RF antenna element. A primary axis of the first RF antenna element is about perpendicular to a primary axis of one of the third RF antenna element and the fourth RF antenna element.

Abstract: An antenna system is provided having a ground plane and a first antenna element disposed over the ground plane. The first antenna element includes first and second fins, each of the first and second fins having an input port and a shape selected such that the fin is responsive to electromagnetic signals provided thereto. The antenna system further includes a second antenna element disposed over the ground plane. The second antenna element includes third and fourth fins, each of the third and fourth fins having an input port and a shape selected such that the fin is responsive to electromagnetic signals provided thereto. The first and second antenna elements are orthogonally arranged with respect to each other such that a slot portion of each of the first and second antenna elements intersect. The antenna system further includes a first substrate disposed about the first and second antenna elements.

Abstract: Antenna structures and methods of operating the same are described. An antenna structure may include an antenna carrier, a first antenna disposed on the first antenna carrier and coupled to a first radio frequency (RF) feed, a second antenna disposed on the first antenna carrier and coupled to a second RF feed, a third antenna disposed on the first antenna carrier and coupled to a third RF feed, and a fourth antenna disposed on the first antenna carrier and coupled to a fourth RF feed. The first antenna and the second antenna may be located along a first axis of the antenna carrier that passes through a center of the antenna carrier. The third antenna and the fourth antenna may be located along a second axis of the antenna carrier that passes through a center of the antenna carrier.

Abstract: The present disclosure is directed to mobile guided surface waveguide probes and receivers. In a representative embodiment, an excitation source such as a generator is coupled to a guided surface waveguide probe. The excitation source and the guided surface waveguide probe mounted to a rigid frame for transport.

Abstract: Described embodiments provide a cupped antenna for transmitting and receiving radio signals. The cupped antenna includes a cup having a rear surface and one or more side surfaces. The rear surface and side surfaces define a cavity having a first radiating element of the cupped antenna disposed within it. The first radiating element is coupled to a first feed circuit. The one or more side surfaces have one or more indentations disposed therein. The one or more indentations are configured to reduce a size and weight of the cup. The one or more indentations also provide an opening within an aperture of the cupped antenna such that an additional antenna can be disposed within the opening.

Abstract: A method of sending and receiving dual-polarization, millimeter-wave signals to and from a mobile device having a top surface, a bottom surface, and an edge surface, includes: radiating energy, in a millimeter-wave frequency band, from a first radiator outwardly from the edge surface with a first polarization; receiving, via the first radiator, energy in the millimeter-wave frequency band with the first polarization; radiating energy, in the millimeter-wave frequency band, from a second radiator outwardly from the edge surface with a second polarization substantially perpendicular to the first polarization, the second radiator being disposed between the first radiator and the top surface or the bottom surface, or a combination thereof; and receiving, via the second radiator, energy in the millimeter-wave frequency band with the second polarization.

Abstract: An antenna system. The antenna system includes a central antenna, and a plurality of peripheral antennas positioned symmetrically around the central antenna. A first coupler provides a first radio connection and a second radio connection. A first 180 degree hybrid coupler is coupled to a first two diametrically opposed antennas of the plurality of peripheral antennas. A second 180 degree hybrid coupler is coupled to a second two diametrically opposed antennas of the plurality of peripheral antennas. A third 180 degree hybrid coupler coupled to the first and second 180 degree hybrid couplers, and having a third radio connection and a fourth radio connection. The first, second, third, and fourth radio connections are decoupled from each other, and the first, second, and third system radio connections are also decoupled from the central antenna.

Abstract: A complementary antenna (e.g., wideband complementary antenna) is presented herein. A complementary antenna can include a first dipole portion, a second dipole portion, a first electrically conductive surface, and a second electrically conductive surface. The first dipole portion can include a first patch antenna portion and a second patch antenna portion. The second dipole portion can include a third patch antenna portion and a fourth patch antenna portion electrically coupled to the second patch antenna portion via a strip antenna portion. The first electrically conductive surface can be coupled to the first dipole portion and the second dipole portion via a first set of electrically conductive pins. The second electrically conductive surface can be coupled to the first electrically conductive surface via a second set of electrically conductive pins.

Abstract: Multi-band antennae used for television reception of at least two different frequency bands enable multi-band reception with an electrically small antenna. The designs are applicable to individual antenna elements, two dimensional arrays, three dimensional arrays, and arrays constructed for high volumetric efficiency. By using the multi-band element, greater frequency reception is achieved with greater density possible in the antenna arrays.

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). 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 impedance of the surrounding medium. Because the coupling method and the radiating elements are wideband mediums, this antenna array is capable of wideband operation. The physical dimensions of the resulting array are also not as sensitive to its electrical performance as other antenna designs since the bandwidth is quite large, reducing the occurrence of an out-of-specification antenna due to manufacturing tolerance build-up. This also reduces the complexity of the manufacturing process, which in turn lowers cost.

Abstract: An antenna-equipped connector comprising a plug having separate conductive portions and configured to be received by an audio output jack of an electronic device, a jack configured to connect to the conductive portions of the plug via respective of at least two conductive lines, an antenna connection node that branches from a branching point on one of the at least two conductive lines, and an antenna connected to the antenna connection node.

Abstract: Improved radio-transparent communication tower panel security devices that can be easily mounted to and strapped around the cover panels of communication towers, including flag-supporting cellular communication towers, so as to band and secure the cover panels thereto and prevent them from falling off in high winds and/or other adverse weather conditions, while preventing wear and tear of flags and their lanyards. Preferably, the communication tower panel security device employs a flexible plastic tubing assembly and a connecting/tensioning assembly having pass-through channels for safely securing radiation-transparent panels covering antenna service bays of a wireless telecommunication tower.

Abstract: A multiband antenna apparatus for high-precision GNSS positioning is proposed. The multiband antenna apparatus comprises a first antenna configured for reception of GNSS signals in a first multiband of electromagnetic spectrum, a second multiband antenna configured for reception of GNSS signals in a second multiband of electromagnetic spectrum, and an antenna phase reference point configured to represent an integrated electric phase data. The antenna phase reference point is related to a physical reference point of the antenna apparatus.

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.