Abstract: A first resin layer is provided with a step part formed in conformity with a shape of at least part of an electrically conductive pattern, and the first resin layer and a second resin layer closely adhere to each other in the step part.

Abstract: An antenna including a ground plane region, a feed element having associated with it a first reactance and a coupling element having associated with it a second reactance, the second reactance being of opposite sign to the first reactance, the coupling element being coupled to the feed element and to the ground plane region and being located in close proximity to the ground plane region, wherein an impedance and hence a resonant frequency of the antenna depend on the first and second reactances.

Abstract: An apparatus including a wireless communications device has an internal antenna system located within the wireless communications device. The internal antenna system includes a passive antenna set comprising at least one antenna element having at least one multilevel structure, a feeding point to the at least one antenna element and a ground plane. The feeding point and a point on the ground plane define an input/output port for said passive antenna set. The passive antenna set provides a similar impedance level and radiation pattern at two or more frequency bands such that the passive antenna set is capable of both transmitting and receiving wireless signals on selected channels. The selected channels are selectable from a plurality of channels throughout an entire frequency range within each of said two or more frequency bands.

Abstract: A rigid substrate including at least one electrically conducting element that provides an antenna function to transmit and/or receive electromagnetic signals, the electrically conducting element having a pattern with a fractal geometry. The electrically conducting element is formed from an electrically conductive ink or enamel that is printed directly on the substrate.

Abstract: A slit (15) is formed between a feed point and GND point of an inverted-F antenna to make the points electrically distant from each other, and at least three antenna elements (14a, 14b, and 14c) are formed. The at least three antenna elements (14a, 14b, and 14c) generate at least three resonance points. An antenna radiating plate (3) projects outwardly so that at least a major part thereof does not face a ground plate (4). Therefore, a multi-band antenna device capable of achieving a wider bandwidth without using a parasitic element, and a communication terminal apparatus are provided.

Abstract: An antenna device (AD) for a RF communication equipment, comprises i) a substrate (S) comprising front (FS) and back (BS) sides, ii) a planar antenna element (AE) fixed to the substrate back side (BS), iii) a group of at least one component (G1) fixed to the substrate front side (FS), in an area located under the antenna element (AE), and connected to the antenna element (AE) through at least a first connecting means (VH 1) passing through the substrate (S), and a low resistivity layer (BL) buried into the substrate (S) for connecting to ground in order to isolate at least the group of component(s) from electromagnetic disturbances induced by the antenna element (AE).

Abstract: An antenna unit is provided with an inverted F-type antenna element provided with a feeding point and a ground connection point, and a non-feed antenna element configured so as to resonate with the inverted F-type antenna element through electrical coupling. In addition, the antenna unit may also be provided with a ground part which is grounded to the earth and connected to the ground connection point provided on one edge of the inverted F-type antenna element, and a resonance element, one edge of which is connected to the ground part, resonated by the non-feed antenna element through electrical coupling.

Abstract: Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The antenna is a dipole antenna with the distal end of the radiating portion being tapered and terminating at a tip to allow for direct insertion into tissue. Antenna rigidity comes from placing distal and proximal radiating portions in a pre-stressed state, assembling them via threaded or overlapping joints, or fixedly attaching an inner conductor to the distal portion. The inner conductor is affixed to the distal portion by, e.g., welding, brazing, soldering, or by adhesives. A junction member made from a hard dielectric material, e.g., ceramic, can be placed between the two portions and can have uniform or non-uniform shapes to accommodate varying antenna designs. Electrical chokes may also be used to contain returning currents to the distal end of the antenna.

Abstract: An aircraft structure having properties of an electromagnetic cavity is used to enhance wireless transmission for at least one of wireless data communication and wireless power transmission.

Abstract: A distributed control system for an active array antenna system is disclosed. In an exemplary embodiment, the array system employs many transmit/receive (T/R) modules each with an associated radiator element, a phase shifter element and a set of RF switch elements to set the module to transmit or receive modes. The array system is arranged to generate a transmit or receive array beam. The distributed control system in an exemplary embodiment includes an array processor for controlling the array, the processor configured to generate command signals to set the T/R module elements to transmit or receive mode and to steer the array beam to a desired direction. The command signals to steer the array beam include phase slopes common to all T/R modules in a given array or subarray.

Abstract: A portable fairing for a mobile radar array system includes at least partially open housing surrounding the mobile radar array and a curved covering mounted on the housing. The curved covering is adapted to cover the radar array in a closed position. The sides of the housing are curved such that when the curved covering is closed, the housing and the curved covering form a generally curved structure.

Abstract: An antenna component (and antenna) with a dielectric substrate and a plurality of radiating antenna elements on the surface of the substrate. In one embodiment, the plurality comprises two (2) elements, each of them covering one of the opposite heads and part of the upper surface of the device. The upper surface between the elements comprises a slot. The lower edge of one of the antenna elements is galvanically coupled to the antenna feed conductor on a circuit board, and at another point to the ground plane, while the lower edge of the opposite antenna element, or the parasitic element, is galvanically coupled only to the ground plane. The parasitic element obtains its feed through the electromagnetic coupling over the slot, and both elements resonate at the operating frequency. Omni-directionality is also achieved. Losses associated with the substrate are low due to the simple field image in the substrate.

Abstract: An improved magnetically coupling near-field RFID antenna is embodied as a magnetic H-field coupler, and the near-field RFID antenna is embodied as a looped and/or frame-shaped antenna. The looped and/or frame-shaped antenna comprises a looped or frame-shaped strip conductor. The strip conductor is arranged set apart from a ground surface parallel thereto. A dielectric is interposed. The start and the end of the strip conductor end close to each other forms a gap or spacing. The start of the strip conductor is fed to ground. The end of the strip conductor is terminated by a terminating resistor. The terminating resistor is connected between the end of the strip conductor and a ground surface.

Abstract: An improved dipole-shaped radiator arrangement is characterized by the following features: a base is disconnected from ground or a ground surface with respect to direct current, or is capacitively coupled to a ground surface; a first dipole or radiator half is electro-galvanically or capacitively fed by a conductor; a second dipole or radiator half is fed via a further feed line in the form of an inner conductor feed; the one end of the first inner conductor section is electrically connected to a matching network; the other end of the third inner conductor section is connected to ground or to the ground surface with respect to direct current.

Abstract: According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes at least one tapered loop antenna element having a generally annular shape with an opening. An antenna assembly may also include a rotatably convertible support including a base and an upper portion coupled to a tapered loop antenna element in some embodiments. The upper portion is rotatable relative to the base between a first configuration for supporting the tapered loop antenna element on a horizontal surface and a second configuration for supporting the tapered loop antenna element from a vertical surface.