Abstract: The invention relates to a microwave antenna for flip-chip semiconductor modules, comprising two semiconductor substrates which are metallized on the surface thereof. Patch antennas, i.e. metallized flat areas which are insulated from the rest of the circuit on an outer surface of a module with a supply line to the circuit, are already known per se. They result in vertical radiation at a relatively large angle. According to the invention, a closed group of bumps are arranged in such a way that the distance of the bumps (2) to each other is less than the half wavelength (?/2) of the microsignal which is to be radiated or received and an open radiation slot arises in at least one pair of side walls (3,4) of the semiconductor substrates (a,b) and a bump, which is connected to the circuit of the semiconductor module, is arranged between the bumps (2) and the radiation slot, enabling the microwave antenna to be excited.

Abstract: An embodiment of the present invention provides an apparatus, comprising a multi-band highly isolated planar antenna directly integrated with a front-end module (FEM).

Abstract: Methods and apparatus to reconfigure an antenna for use with mixed wireless networks are described. In one embodiment, a switch is coupled between a first portion and a second portion of an antenna to cause the antenna to tune to a plurality of radio frequency bands. Other embodiments are also described.

Abstract: A planar antenna comprising a signal path for receiving or transmitting a signal, a conductive layer having a slot formed therein positioned to electromagnetically couple with the signal path, a conductive plate parallel to and overlying the slot and spaced therefrom by a dielectric layer, the conductive plate being electrically in contact with the signal path, and one or more patches parallel to and above the conductive plate.

Abstract: A communications device for sending and receiving an information signal. The communications device comprising an element having an opening defined therein for receiving an antenna, the element comprising first conductive material disposed proximate the opening and comprising transmitting and receiving circuits. The antenna comprises: a dielectric tubular member, second conductive material forming an exterior surface of the tubular member with the second conductive material defining a slot therein, a slot length approximately equal to one-half of a guided wavelength and a feed connected to the transmitting and receiving circuits and disposed proximate the slot for establishing currents in the second conductive material.

Abstract: Antenna apparatus, and an associated methodology, for a multi-frequency-band-capable radio device, such as a quad-band mobile station. The antenna apparatus forms a hybrid strip antenna having a pair of resonant elements. A first resonant element forms a peripheral loop extending about the periphery of a substrate. A meander line extends along a portion of the peripheral loop. And, second resonant element is formed of an L-shaped strip. The peripheral loop is resonant at a set of frequencies, and the L-shaped strip is resonant at a single frequency. Through appropriate selection of the lengths of the resonant elements, the frequencies at which the elements are resonant are controlled.

Abstract: A dual-band antenna includes a planar conductive layer comprising a conductive region and a central non-conductive region. The conductive region and the non-conductive region together define a pair of interconnected F-slot structures, and a loop strip structure coupled to and disposed around the F-slot patch slot antenna structures.

Abstract: An ultra wideband antenna (20) is disposed on a substrate (10). The substrate includes a first surface (101) and a second surface (102). The ultra wideband antenna includes a radiation body (22), a feeding portion (26), and a grounded portion (28). The radiation body disposed on the first surface is used for transceiving electromagnetic signals. The radiation body includes a semicircle-shaped metal portion (222) and a rectangle-shaped metal portion (224) and defines a slot (24) starting at an edge therein. The feeding portion is electronically connected to the radiation body for feeding signals to the radiation body. The grounded portion is disposed on the second surface.

Abstract: A balanced, antipodal tapered slot antenna includes one or more antenna elements or unit cells having metallic cross walls that are located in spaces between the adjacent elements of the antenna. The elements can include vias interconnecting metallic conductors of the elements and one or more magnetic slots in the metallic conductors. A plurality of the antenna elements or unit cells can be arranged in an antenna array that has a mirrored configuration with adjacent intermediate neighboring elements of the antenna array mirrored one-dimensionally with elements reversed along the E-plane, or doubly-mirrored, two-dimensionally, in the E-plane and the H-plane by reversing the orientation of alternate elements. Metallic cross walls and metallic rods are disposed in a non-electrically contacting relationship with adjacent antenna elements. The substrate of the antenna includes dielectric material located at the aperture of the antenna element.

Abstract: The present invention relates to a planar antenna carried by a substrate comprising a slot in the form of a closed curve dimensioned to operate at a given frequency, supplied by a feeder line intersecting the slot at a point known as an excitation point, characterized in that at least two short circuits in parallel on the slot are positioned with respect to the excitation point so as to match the impedance to the excitation point and/or the polarization of the antenna.

Abstract: A first metal plate for transmission and a second metal plate for transmission are closely-attached to a first surface and a second surface of a dielectric body, respectively. An outer edge of the first metal plate substantially symmetrically faces an outer edge of the second metal plate via the dielectric body. A metal plate for matching is arranged inside a hole formed on the second metal plate, with a slit formed with an inner wall of the hole, and is fixed to the dielectric body. The metal plate for matching is electrically connected to the first metal plate via a through hole penetrating the dielectric body. An IC chip is surface-mounted to connect the second metal plate with the metal plate for matching.

Abstract: A wireless apparatus has a main housing, a movable housing relatively extended to the main housing. The main housing contains a first PCB with a first layer being fully laid metal material. The movable housing contains a second PCB with a second layer being fully laid metal material. An insulation route is laid on the second layer and led to the border of the second layer. A connection component electronically connects the first layer and the second layer. When the wireless apparatus is operated at wireless communication, the cooperation of the first layer, the second layer, the insulation route and the connection component adjusts the electrical characteristic of the first and second PCBs for eliminating a parasitic effect being caused of movement of the first and second PCBs and increasing gain of the antenna of the wireless apparatus.

Abstract: The present invention refers to an antenna diversity system comprising at least a first antenna and a second antenna wherein the first antenna substantially behaves as an electric current source or as a magnetic current source, and the second antenna substantially behaves as an electric current source or as a magnetic current source and a corresponding wireless device. Further the invention relates to an SMT-type slot-antenna component comprising at least one conductive surface or sheet of metal in which the pattern of a slot is created, at least one contact terminal accessible from the exterior of said component to electrically connect the conductive surface included in the slot-antenna component with the ground plane of a circuit board such as a printed circuit board and a corresponding wireless device.

Abstract: An antenna comprises a conically shaped body of dielectric material. Cross-sections of the body have truncated elliptical shape, wherein each shape is truncated substantially through a first focus of the elliptical shape along a truncation line that extends substantially perpendicularly to a main axis of the elliptical shape. The second focus of the elliptical shape lies within the body. An elongated wave carrying structure such as a slot in a conductive ground plane extends substantially along a focal line through the first focus of the elliptical shapes in successive cross-sections. This structure supports transmission and/or reception over a wide range of frequencies. In an embodiment a multi-frequency feed structure is integrated in the ground plane of the antenna.

Abstract: The invention relates to a wireless communication device that is coupled to an energy source, such as a battery, capacitor, or solar cell. The wireless communication device is coupled to a slot in the energy source to form a slot antenna for wireless communication. The slot antenna receives communication signals from an interrogation reader or other communication device. The wireless communication device may be attached to a device or container for purposes such as communicating information regarding identification, manufacturing, tracking, and the like. The wireless communication device may also be coupled to the energy source for power.

Abstract: According to an embodiment, a plane circular polarization antenna comprises a flat insulating substrate and a conductor provided on the flat insulating substrate. The conductor comprises an inverted F antenna including a feeding point, a ground portion, the ground portion including a slot antenna including a slot, and a short-circuiting portion provided in a part of an area between the inverted F antenna and the slot antenna.

Abstract: A wideband antenna has: a rectangular conductor sheet; a bow-tie-shaped slit formed in the rectangular conductor sheet, the rectangular conductor sheet having two apex portions defined by the bow-tie-shaped slit, the two apex portions being opposite to each other in the middle of the bow-tie-shaped slit; an auxiliary antenna element formed to extend along the bow-tie-shaped slit on both sides of one of the two apex portions; a power-feeding portion formed at the one of the two apex portions; and a grounding portion formed at an other of the two apex portions.

Abstract: The present invention relates to a broadband non-resonant antenna device for wireless transmission of information using electromagnetic signals, comprising a metal sheet layer, forming a plane, with a slotline that comprises a first part and a second part. The side of the second part that is the most distant from the first part transcends into a widening open-ended tapered slot in the metal sheet layer. The device additionally comprises a feeding line in the metal sheet layer. The feeding line comprises a feeding part, with a first end and a second end, and gaps separating the feeding part from the surrounding metal sheet layer by a certain distance, where the slotline is intersected by the feeding line.

Abstract: With a differential feed line 103c, slot resonators 601, 603, 605, and 607 are allowed to operate in pair, a slot length of each resonator corresponding to a ½ effective wavelength during operation. Slot resonators which are excited out-of-phase with an equal amplitude are allowed to exist within the circuitry. Thus, positioning condition of selective radiation portions 601b, 601c, 603b, 603c, 605b, and 607b in the slot resonators is switched.

Abstract: An apparatus is disclosed for a multiband antenna (102) in a communication device (100). An apparatus that incorporates teachings of the present invention may include, for example, an antenna having a finite ground surface (201, 401), and an elongated conductor (206, 406) that is characterized by a length and is spaced from the finite ground surface. The elongated conductor has a first slot (208, 408) extending through a substantial portion of the length of the elongated conductor, and a second slot (210, 410) having a shorter length than the first slot. The antenna further has a grounding conductor (216, 416) coupling the finite ground surface to the elongated conductor, and a signal feed conductor (214, 414) coupling to the elongated conductor.

Abstract: The dual-polarization, slot-mode antenna includes an array of dual-polarization, slot-mode, antenna units carried by a substrate, and each dual-polarization, slot-mode antenna unit includes a plurality of patch antenna elements arranged in spaced apart relation. The substrate is preferably a flexible substrate. Adjacent patch antenna elements of each dual-polarization, slot-mode antenna unit may have respective spaced apart edge portions defining gaps therebetween, and a respective capacitive coupling feed plate may be associated with each gap and overlap the respective spaced apart edge portions of adjacent patch antenna elements of each dual-polarization, slot-mode antenna unit. Each capacitive coupling feed plate may include a feed point.

Abstract: An antenna is integrated with a window of a vehicle primarily for operating in multiple cellular telephone frequency bands. The antenna includes a conductive area formed of conductive material defining a slot. The slot is dimensioned such that edges adjacent the slot radiate primarily in a first frequency band. The antenna also includes a conductive strip formed of conductive material extending from the conductive area. The conductive strip is dimensioned to radiate primarily in a second frequency band.

Abstract: An electronic device comprising a first conductive unit and a second conductive unit disposed such that a gap exists between the first component and the second component. The electronic device further includes one or more components disposed along the gap and configured to counteract one or more capacitance effects in the gap, wherein at least one of the first conductive unit and the second conductive unit represents a part of an antenna. By counteracting the capacitance effects in the gap, certain radiation attributes of the antenna, such as radiation efficiency, can be improved. The one or more components are also employed to counteract one or more capacitance effects in a slot of a conductive unit in an electronic device.

Abstract: A slot antenna according to the present invention includes: a ground conductor 12 provided on a rear face side of a dielectric substrate 101, the ground conductor having a finite area; a slot 14 which recesses into the ground conductor 12, beginning from an open-end point on a side edge of the ground conductor 12; and a feed line 261 for supplying a high-frequency signal to the slot 14, the feed line 261 intersecting the slot 14. At a first point near the slot, the feed line 261 branches into a group of branch lines including at least two branch lines, such that at least two branch lines in the group of branch lines are connected to each other at a second point near the slot to form at least one loop line 209. A maximum value of a loop length of each loop line 209 is prescribed to be less than 1× effective wavelength at an upper limit frequency of an operating band of the slot antenna.

Abstract: The wireless communication device contains at least one conductive tab that provides an antenna. The tab(s) form a pole antenna, and the tabs may also be attached across a slot to form a slot antenna. The tab(s) may be attached across a slot created in a package to form a slot antenna, or the tab(s) may be attached to a slot that is created as part of the wireless communication device to form a slot antenna. The tab(s) and/or the slot may also contain an adhesive material to attach the wireless communication device to a package, container or other material. More than one slot may be provided to form a circularly polarized antenna. The carrier may be a conductive material in which tabs are formed as part of the carrier before the wireless communication device is attached. The wireless communication device may have an asymmetrical antenna arrangement.

Abstract: A Extended Phase Center Tapered Slot Antenna (NC#97529). The apparatus includes a first antenna element capable of transmitting and receiving radio frequency energy; a second antenna element capable of transmitting and receiving radio frequency energy, wherein the first antenna element and the second antenna element are situated in a tapered slot antenna pair configuration; and at least one conductive launch structure, electrically coupled to the first antenna element and the second antenna element at a location between a lowest operating frequency phase center and a launch end of the tapered slot antenna pair configuration, capable of conducting electricity.

Abstract: An integrated module of antenna and connector has an insulative housing receiving a plurality of conductive terminals therein, a metal shell shielding the insulative housing, and a coupling device assembled on the metal shell. The metal shell is grounded and defines a slot with a particular shape. A feed-in terminal is provided on a side of the slot and includes a soldering portion and a contact portion. The soldering portion of the feed-in terminal connects with a circuit board. The coupling device contacts the contact portion of the feed-in terminal, feeding in high-frequency voltage which forms voltage difference relative to a plane of the slot. A resonant electromagnetic field is produced in the slot for working as an antenna for electromagnetic wave radiation. Thus, functions of an antenna and a connector are combined, reducing the occupied space and decreasing the cost.

Abstract: An antenna (10) having outer and inner sections (12, 14) of electrically conductive material and coaxial with a longitudinal axis (19). The outer section includes an outer side wall (22) extending from the bottom to join an outer top wall at the top of the antenna. The inner section includes an inner side wall extending upward from the bottom to join an inner top wall. The outer and inner sections define an interior region (32) filled with dielectric material. The outer section has at least one slotted opening (34) with opposed ends, wherein each such slotted opening extends from one end in the outer side wall, across the outer top wall, and to the opposed end in the outer side wall. The inner section including at least one feed (36) to convey electromagnetic energy into or out of said interior region of the antenna.

Abstract: The present invention relates to a slot type antenna with integrated amplifiers, comprising a substrate S featuring a ground plane G, a longitudinal radiation open slot antenna, a power divider connected to a feeder line, an amplifier connected to each of the outputs of the power divider, such that the amplifiers are supplied in phase opposition, the output of the amplifiers being connected to a power combination circuit directly coupled to the excitation point of the slot type antenna.

Abstract: A chiral polarization UWB slot antenna comprises a feed region and opposing tapered slot lines along an arcuate path of angle measure 360° or less. Opposing tapered slot lines may terminate in bulbous ends and may be characterized by an impedance profile such as an exponential or a Klopfenstein impedance profile. In alternate embodiments, an arcuate path has an arc length substantially equal to a half wavelength at a frequency of interest and an angle measure substantially equal to 180°. In still further alternate embodiments an arcuate path is substantially described by a radial variation with respect to angle of r(?)=R sin ? where R is a constant that in some embodiments is substantially equal to ½? times wavelength (R=?/(2?)) at a particular frequency of interest. In some embodiments, a frequency of interest lies substantially within the range defined by 3.1 GHz to 10.6 GHz.

Abstract: A receiving antenna for digital television signal reception includes a dielectric substrate, a radiating plate formed on the dielectric substrate with a bar shape, having a first long edge and a second long edge corresponding to the first long edge, a slit formed on the radiating plate with a length at least two times the width of the radiating plate, having a terminal at about the center of the first long edge and a terminal at the second long edge, and separating the radiating plate into a first sub-plate and a second sub-plate, a first feeding point formed on the first sub-plate, a second feeding point formed on the second sub-plate, and a feeding coaxial cable having a core conductor connected to the first feeding point and a grounding conductor connected to the second feeding point.

Abstract: The present invention relates to a compact planar antenna containing, on a substrate featuring at least one ground plane, a radiating slot forming at least one folded strand with parallel strand parts. The antenna contains at least one means of phase inversion between two successive strand parts, the means of phase inversion being positioned on the strand in such a manner that the field components of the parallel strand parts are added together. The use of phase inversion means makes it possible to reduce the dimensions of the antenna, facilitating its integration on a card.

Abstract: An antenna apparatus includes an antenna element having at least one slit, a first feeding point provided at a position on the antenna element, and a second feeding point provided along the slit. The antenna element is excited as an electric current antenna through the first feeding point, and at the same time, the slit is excited as a magnetic current antenna through the second feeding point.

Abstract: The present invention has been made to reduce the size and thickness of a multibeam antenna capable of switching the directivity in multi directions. The present invention provides a multibeam antenna including an antenna element array including one or more feed element and N (N: natural number) parasitic elements, wherein the electrical length of one or more parasitic elements are made variable.

Abstract: A low-loss, high-efficiency, broadband antenna including both electric and magnetic dipole radiators is provided herein. The broadband antenna may be referred to as a “P×M antenna” and may generally include a ground plane; a magnetic radiator formed within the ground plane; a conductive feed arranged within a first plane, which is parallel to the ground plane; and an electric radiator arranged within a second plane, which is perpendicular to the ground plane and coupled at one end to the conductive feed. According to a particular aspect of the invention, the electric and magnetic radiators are substantially complementary to one another and are coupled for producing a P×M radiation pattern over a broad range of operating frequencies. One advantage of the P×M antenna described herein is that the complementary antenna elements are combined without the use of a lossy, resistive matching network, thereby increasing the efficiency with which the P×M radiation pattern is produced.

Abstract: An antenna (10) having a top (14), a bottom (16), and a longitudinal axis (20). An outer shell (12) of electrically conductive material is provided which is coaxial with the longitudinal axis, and which includes an outer top wall (22) joining with an outer side wall (24) that extends toward the bottom of the antenna. The shell defines an interior region (18) that is filled with a dielectric material, and the shell has at least one slot (30) with opposed slot ends. Each slot extends from one opposed slot end in the side wall, and at least partially across the top wall to an opposed other slot end. A coaxial feed (32) extends from the bottom of the antenna to the top of the antenna, to convey electromagnetic energy to or from the top wall of the antenna.

Abstract: An antenna structure includes a radiating element and an antenna radome. The antenna radome has at least one dielectric layer, which has an upper surface having many S-shaped metal patterns and a lower surface having many inverse S-shaped metal patterns corresponding to the S-shaped metal patterns. The S-shaped metal patterns are respectively coupled to the corresponding inverse S-shaped metal patterns to converge radiating beams outputted from the radiating element.

Abstract: The invention discloses an antenna (100, 100?, 400, 500) comprising walls in a conducting material: first (110, 410, 510) and second (120, 420, 520) main walls, a first end wall (130, 530) and a first and a second side wall. The first (110, 510) and second (120, 520) main walls extend in parallel to each other, and are joined by the first end wall (130, 530). The side walls also join the first and second main walls, so that a cavity with only one opening (105, 205, 505) is formed, a rectangular aperture which can be brought to radiate by a feed connection (207). Suitably, the antenna can also comprise a second end wall (140, 540) which extends from the second main wall (120) towards the first main wall (110), with the length of extension of the first main wall being such that the second end wall and the first main wall do not meet.

Abstract: A meandered slit antenna is provided. The meandered slit antenna includes: a printed circuit board; an RF module mounted on the printed circuit board to generate a predetermined electric signal; a microstrip feed line connected with the RF module to transmit the predetermined electric signal; and a slot part for radiating an electromagnetic wave induced by the electric signal that is transmitted through the microstrip feed line, the slot part being formed in a meandered shape.

Abstract: A direction-change element for changing the direction of travel of an incident electromagnetic wave and electromagnetic wave transmitting/receiving elements are disposed on a substrate. The direction-change element has a periodic array of materials of different refractive indexes arranged in parallel to the substrate surface. The electromagnetic wave transmitting/receiving elements are positioned at opposite ends of the periodic array in the direction of its arrangement. The output ratio between the two electromagnetic wave transmitting/receiving elements can be used to detect the incidence angle of the electromagnetic wave with high accuracy. By changing the relative intensity of electromagnetic waves to be sent from the two electromagnetic wave transmitting/receiving elements, it is possible to achieve high-accuracy control of the angle of emittance of the electromagnetic wave to be sent from the device.

Abstract: A monopole antenna comprises a planar substrate, a radiating element arranged on the planar substrate and of long-guide trapezium-shape and comprises a trapezium notch in the middle thereof, a grounding element assembled with said planar base with a predetermined angle.

Abstract: The present invention relates to a multiband planar antenna consisting of at least one resonator formed of an element having a closed shape made on a substrate and dimensioned so as to operate in its fundamental mode at the resonant frequency of the lowest band. The resonator is fed by a feed line in such a way as to operate in all the higher modes. The resonator comprises means for modifying the resonant frequencies of the various modes in such a way as to cover the bands concerned.

Abstract: A dual band printed antenna includes a first metal sheet, a second metal sheet, a substrate and a conductive unit. The first metal sheet is triangular and has a slit and a feeding part. The slit is extended from a side to another side of the first metal sheet. The slit and the feeding part divide the first metal sheet into a first radiating part and a second radiating part. The second metal sheet has a breach and a grounding part. The breach is triangular and located opposite to the first metal sheet. The first and second metal sheets are disposed on the substrate. The first metal sheet is apart a distance from the second metal sheet. The conductive unit has a conductive body, which is electronically connected with the feeding part, and a grounding body, which is electronically connected with the grounding part. A dual band printed antenna module is also disclosed.

Abstract: A wideband antenna has: a rectangular conductor sheet; a bow-tie-shaped slit formed in the rectangular conductor sheet, the rectangular conductor sheet having two apex portions defined by the bow-tie-shaped slit, the two apex portions being opposite to each other in the middle of the bow-tie-shaped slit; an auxiliary antenna element formed to extend along the bow-tie-shaped slit on both sides of one of the two apex portions; a power-feeding portion formed at the one of the two apex portions; and a grounding portion formed at an other of the two apex portions.

Abstract: Patch antenna (100) for a wireless communications device has a reduced size. The patch antenna is operable on a fundamental frequency f0 and a first harmonic f1 of the fundamental frequency, with substantially co-located peak gain directions on both frequencies. The patch antenna (100) is formed from a conductive ground plane (102) of generally rectangular shape. A first aperture (108) provided in the conductive ground plane member (102) defines a bow-tie shape. Additional elongated apertures (118, 120) are provided for reactive loading. The elongated apertures (118, 120) disrupt the phasing of surface currents within the conductive ground plane member (102) around the periphery of the first aperture (108).

Abstract: The invention relates to a wireless communication device that is coupled to an energy source, such as a battery, capacitor, or solar cell. The wireless communication device is coupled to a slot in the energy source to form a slot antenna for wireless communication. The slot antenna receives communication signals from an interrogation reader or other communication device. The wireless communication device may be attached to a device or container for purposes such as communicating information regarding identification, manufacturing, tracking, and the like. The wireless communication device may also be coupled to the energy source for power.

Abstract: A triplate planar slot antenna formed by laying a ground plate, a lower layer side dielectric layer, a lower layer side copper-clad film substrate, an upper layer side dielectric layer, a slot plate and an upper layer side copper-clad film substrate sequentially from the bottom side, wherein a lower layer side copper foil piece is secured to the surface of a lower layer side insulating film by a joining technique not using adhesive, and an upper layer side copper foil piece is secured to the surface of an upper layer side insulating film by a joining technique not using adhesive. In a state where the copper foil pieces are removed, each insulating film has a dielectric constant in the range of 2.0-4.0, a tan ? in the range of 0.001-0.01, and a thickness of 25 ?m or less.

Abstract: A fractal slot antenna developed for wideband communications with a reflector that increases the gain and preserves the wideband capability of the antenna. This is a typical microstrip slot antenna that is consisted from microstrip feed and radiating slot made in conductive ground. The slot shape is modified in meanings of fractal geometry. The antenna main advantage is the relatively large bandwidth and moderate efficiency. In a typical microstrip antenna the presence of reflector decreases the antenna bandwidth. Authors of this patent has discovered that applying fractalization rules in several orders to the radiating slot of the microstrip slot antennas improves their properties and particularly gain, efficiency and bandwidth in the presence of reflector. This rule will help the creation of so called “ultra wide band” antennas—with operational bandwidth more than 1-10 GHz.

Abstract: An apparatus includes a first end cap, a second end cap and a tapered slot antenna pair having a first antenna element and a second antenna element. The first end cap is electrically coupled to the first antenna element and comprises conductive material. The second end cap is electrically coupled to the second antenna element and comprises conductive material. The first end cap and the second end cap are configured to provide induction-cancelling, capacitive coupling when the apparatus operates at frequencies below a theoretical cutoff frequency.

Abstract: The invention relates to a method of producing a photonic bandgap structure on a slot-type microwave device which is produced on a metallized substrate. According to the invention, periodically-spaced patterns are formed on the surface of the aforementioned substrate opposite the surface comprising the slot. The invention is suitable for slot-type antennas.