Abstract: An antenna apparatus includes: a ground substrate; and a loop antenna having first and second polarized wave surfaces, which are perpendicular to the substrate. The substrate provides an antenna, which is excited and vibrated together with the loop antenna. The antenna has a first polarized wave component in parallel to the first polarized wave surface and a second polarized wave component in parallel to the second polarized wave surface. A polarized wave ratio between the first polarized wave component and the second polarized wave component in the substrate is substantially equal to a polarized wave ratio between the first polarized wave surface and the second polarized wave surface in the loop antenna.

Abstract: There are provided a first circuit substrate 22 on which an antenna 32 and electronic components are arranged, a case body 24 that is molded of a non-conductive material and that is attached to the first circuit substrate 22 so that the case body 24 overlaps the first circuit substrate 22 in the thickness direction of the first circuit substrate 22, and a housing 8 including the first circuit substrate 22 and the case body 24 in the housing 8. The case body 24 comprises a conductive layer formed on the surface of the case body 24, except for an antenna opposing area S where the case body 24 overlaps the antenna 32 in the thickness direction of the first circuit substrate 22.

Abstract: The invention as disclosed is a buoyant cable antenna configured for both VLF/LF and HF signals. A 100 foot antenna element has a low-pass filter assembly positioned at the midpoint of the antenna element to block HF signals. The outboard tip of the antenna element is shorted. In this way, the antenna element appears as a 50 foot open circuit antenna element to HF signals and as a 100 foot shorted antenna element to VLF/LF signals.

Abstract: A built-in FM transmitting antenna applied to a mobile device, includes a substrate unit, a first antenna unit, a conducting unit and a second antenna unit. The substrate unit has a circuit substrate, at least one grounding layer disposed on the circuit substrate, and a plurality of conducting pads disposed on the circuit substrate. The first antenna unit is disposed above the substrate unit and substantially parallel to the substrate unit. The conducting unit is electrically connected between the substrate unit and the first antenna unit. The second antenna unit is directly disposed on the edge of the top surface of the circuit substrate. The second antenna unit has two ends electrically connected between two of the conducting pads, respectively. The two ends of the second antenna unit are electrically connected to an FM chip module and the conducting unit through the two of the conducting pads, respectively.

Abstract: An antenna element with a single-conductor antenna is provided within a removable core. The removable core is mounted within a hollow liner by sliding the core into the hollow liner. A pull cable may be attached to an end of the removable core to pull the core through the outboard end of the hollow liner. Due to reduced strain on the core as compared to the liner, the single-conductor antenna may be formed in segments interconnected with capacitors for adjusting the antenna gain to a maximum in the vicinity of a desired operating frequency or frequencies.

Abstract: A triple band antenna includes a feed-in portion, a first radiating portion, a second radiating portion, a third radiating portion and a grounding portion. The first radiating portion is connected to a first side of a first end of the feed-in portion. A second end of the second radiating portion is connected to a second side of the first end of the feed-in portion. The third radiating portion is connected to a third end of the second radiating portion. The grounding portion is located at two sides of the feed-in portion.

Abstract: An antenna element includes: a radio transceiver that transmits and receives a radio wave; a signal input pad; a ground layer; an antenna that has a connection portion for electrically connecting the radio transceiver to the ground layer and the signal input pad; a silicon substrate on which the antenna is formed; and an insulating film for electrically insulating the silicon substrate from the antenna. The radio transceiver is disposed on a first surface of the silicon substrate with the insulating film interposed therebetween. The ground layer and the signal input pad are disposed on a second surface of the silicon substrate opposite to the first surface thereof with the insulating film interposed therebetween. The connection portion is disposed to penetrate the silicon substrate.

Abstract: The present disclosure relates to an airborne radar notably for a drone. In at least one embodiment, the airborne radar has a first structure and a second structure. The first structure is mechanically attached to an aircraft carrying the radar. The first structure has a degree of rotational freedom relative to the aircraft on a first axis. The second structure is attached to the first structure. The second structure has a degree of rotational freedom relative to the first structure on a second axis converging with the first axis. An antenna is attached to the second structure and configured to receive and send electromagnetic waves. An electronic module configured to process the electromagnetic waves sent or received by the antenna is attached to the second structure.

Abstract: A broadband antenna including: a dielectric substrate; a meander line radiator formed on the dielectric substrate to be bent at an acute angle; and a stub extended from at least one of bending portions of the meander line radiator, wherein the meander line radiator has 2n number of the bending portions thereon to form an n number of turns, where n?1.

Abstract: A super wide bandwidth coupling antenna comprises a first radiation portion made of electric conductor; the first radiation having a body and a feeding frame extending from a body of the first radiation portion; a second radiation portion formed by an electric conductor; a supporting frame extending from a body of the second radiation portion; a ground portion made of electric conductor; one end of the ground portion being connected to the supporting frame of the second radiation portion; a signal feeding wire having a main signal end wire which is electrically connected to the feeding frame of the first radiation portion; a ground end wire of the signal feeding wire being electrically connected to the ground portion; an isolation post for positioning the first radiation portion and second radiation portion with an insulating gap between the first radiation portion and second radiation portion.

Abstract: A broadband antenna including an antenna body, a ground plane, and a bandwidth adjustment portion is described. The bandwidth adjustment portion, formed by at least one capacitor, is connected between the antenna body and the ground plane. The bandwidth adjustment portion is formed by more than one capacitor connected in series. Also, in another situation, the bandwidth adjustment portion can be formed by more than one capacitor connected in parallel.

Abstract: An electronic device includes a helical resilient member serving as an electrical inductance element. The electronic device also includes an antenna, a signal feeding line, and a transmitting/receiving module. The helical resilient member has first and second ends with a predetermined number of turns of coil arranged therebetween the first and second ends, and is made of electrically conductive materials so that the turns of coil defines an electrical inductance. The signal feeding line is connected between the helical resilient member and a signal feed point of the antenna. The transmitting/receiving module is connected to the helical resilient member so as to couple the inductance of the helical resilient member to the transmitting/receiving module.

Abstract: In an antenna apparatus, at least one choke in the form of a groove is arranged between a transmitting antenna and a receiving antenna. The choke functions to suppress the mutual electromagnetic coupling between the transmitting antenna and the receiving antenna. The depth of the choke is in a range from 0.15, to less than 0.225? where ? is a wavelength of a carrier wave.

Abstract: The invention concerns a meandered antenna comprising: a first meandered conductive element including a plurality of arms, two consecutive arms forming a meander; a second conductive element forming with the first conductive element a radiating two-wired line, the second conductive element including a plurality of arms engaged each between two consecutive arms of the first conductive element. The antenna is characterized in that it is designed to operate without ground element, in particular without ground plane.

Abstract: An electrolytic fluid antenna comprising: a first current probe having an aperture; a pump having a nozzle, wherein the pump is configured to pump electrolytic fluid out the nozzle and through the aperture; and a first transceiver operatively coupled to the current probe.

Abstract: An ultra-wide band (UWB) antenna and a plug-and-play (PnP) device using the same are provided. A dielectric substrate of the PnP device has a ground plane. The UWB antenna includes a radiating metal plate and a feeding portion. The radiating metal plate is in a non-ground region of the dielectric substrate and has at least a slit cut. An opening of the slit cut is at the edge of the radiating metal plate facing the ground plane. The feeding portion is also at the edge of the radiating metal plate facing the ground plate for feeding a signal to the antenna.

Abstract: An antenna apparatus utilizing an aperture of transmission line, which is connected to a first transmission line having a predetermined characteristic impedance, includes a tapered line portion, and an aperture portion. The tapered line portion is connected to one end of the transmission line, and the tapered line portion includes a second transmission line including a pair of line conductors. The tapered line portion keeps a predetermined characteristic impedance constant and expands at least one of a width of the transmission line and an interval in a tapered shape at a predetermined taper angle. The aperture portion has a radiation aperture connected to one end of the tapered line portion. A size of one side of the aperture end plane of the aperture portion is set to be equal to or higher than a quarter wavelength of the minimum operating frequency of the antenna apparatus.

Abstract: The present invention relates to a transmission/reception antenna with diversity of radiation comprising on a substrate at least a first and a second radiating elements connected by a network of feeder lines to a transmission/reception circuit of electromagnetic signals, wherein the network is constituted by a first feeder line connected to a first radiating element and by a set of two second feeder lines each connected by means of a switching element to the second radiating element in such a manner as to supply the two radiating elements in phase or in phase opposition, the set of the two second feeder lines being connected to the first feeder line by a third feeder line, the first and third feeder lines being connected by a feeder line common to the transmission/reception circuit of electromagnetic signals.

Abstract: A mounting structure of an antenna device for mounting the antenna device composed of a ground part and an element part on an electronic apparatus is disclosed. The ground part is mounted on the electronic apparatus so as to be substantially overlapped with a conductive part of the electronic apparatus.

Abstract: A J-Pole antenna disclosed including: shunt segment extending out of the plane of the J-Pole antenna. A shunt segment extending out of the plane of the J-pole antenna aids in attaching the antenna to a connector and allowing for a reduction in the size of the antenna and connector. The shunt segment also makes the antenna shorter while preserving the same gain and impedance performance as a conventional J-Pole antenna. A connector plate and connector may be used with the antenna having the shunt segment extending out of the plane of the J-Pole antenna. A protective enclosure may be used with the J-Pole antenna and allowing a radiating antenna segment of the J-Pole antenna to extend from the protective enclosure.