106 results about "Wire antenna" patented technology

A lighting device, such as a replacement lighting device, comprising a light source (LS), e.g. LEDs, for producing light along an optical axis (OA). A heat sink (HS) made of a material with an electrical resistivity being less than 0.01 Ωm, e.g. a metallic heat sink being a part of the housing, transports heat away from the light source (LS). A Radio Frequency (RF) communication circuit (CC) connected to an an antenna (A) serves to enable RF signal communication, e.g. to control the device via a remote control. Metallic components, including the heat sink (HS), having an extension larger than 1/10 of a wavelength of the RF signal are arranged below a virtual plane (VP) drawn orthogonal to the optical axis (OA) and going through the antenna (A). Hereby a compact device can be obtained, and still a satisfying RF radiation pattern can be obtained. The antenna can be a wire antenna or a PCB antenna, e.g. a PIFA or a IFA type antenna. In a special embodiment the antenna is formed on a ring-shaped PCB with a central hole allowing passage of light from the light source. Preferably, the antenna is positioned at least 2 mm in front of the heat sink (HS).

A motor-vehicle tyre includes a sidewall and a member with an electronic device, a generally and substantially linear-shaped rectilinear wire antenna, and means of electrical connection between the wire antenna and the electronic device. The member is embedded in the sidewall in an arrangement such that the antenna is oriented circumferentially with respect to the tyre and the connection means is oriented in a radial direction of the tyre. The wire antenna is integrally offset radially on one side of the electronic device.

This invention provides the electromagnetic waves shield material that has a sufficient effect of shielding the electromagnetic waves by making the electric conductive fibers into mesh. And this invention also provides the electromagnetic waves shield mobile phone case that avoids a harmful effect on the human body without reducing the function of communication of the mobile phone used the said electromagnetic waves shield material.

The fibers with electric conductivity are woven into mesh by a general knitting machine like a machine for tricot. The cost is low even used for the wide area to shield the electromagnetic waves because the consumption of the fibers needed is less. The coarseness of the net is maintained the same by controlling the movement of the length and breadth each other.

To avoid the radiation to the head direction, the electromagnetic waves shield material is used for the front and upper sides of the mobile phone case which are the direction to the head when the mobile phone is in use. The regular material without electromagnetic waves shield effect is used for the both sides of the mobile phone case.

The antenna cap with electromagnetic shield structure is attached to the said upper side of the electromagnetic wave shield case. The electricity with high frequency is conducted between the above antenna cap and the upper side of the electromagnetic wave shield case. The said antenna cap is a conic tube cut it's head obliquely. The opening part is made to face in the opposite side of the head when it is attached to the antenna. A metallic pin is attached to the outside of the antenna cap. This metallic pin conducts high frequent electricity with the wire antenna at the mobile phone body when it is attached. It functions as an additional antenna to the wire antenna at the mobile phone body.

Methods and systems for detection of an electric field generated by the human/animal body can include providing a passive antenna system for detecting changes in the ambient electric field due to interaction of the ambient with the charges generated by the human/animal body, and a high impedance sensor that is fixed to the encapsulated wire antenna. The result is a passive human/animal detection system without any moving parts. The antenna can be an encapsulated wire, and the wire length can be chosen according the desired application. For systems that are intended to detect the presence of a human being or animal, the encapsulated wire can have a length of one hundred feet or more, and a grid of wires can be used for detection within an Area of Interest (AOI).

The invention discloses a method for performing accurate three-dimensional modeling based on a data glove by using natural gestures. LilyPad Arduino is additionally arranged outside the glove as a processing chip, hand gestures are monitored through bending sensors, FSR402 type resistive thin film pressure sensors and a JY-901 module, and LilyPad XBee and an XBee 1mW Wire Antenna wireless module perform two-way communication with a computer. Hand coordinates obtained by somatosensory equipment are fused with motion data, so that a human body natural language can be understood by the computer, the measurement accuracy can reach that of a mouse, and the three-dimensional modeling of the user with the natural language can be implemented.

A compact wireless security sensor having a magnetically operated plunger switch. The compact nature of the sensor of the present invention makes it ideal for being substantially concealing into a door frame or window as part of a wireless security system. The sensor unit includes a housing having an inner end, an outer end, and a magnet positioned within a moveable plunger, and an antenna, preferably a flexible wire antenna. The housing further contains a sensor switch, a microprocessor with a PCB, a wireless transmitter, such as an RF transmitter, and a power source, such as a small coin cell battery, for emitting signals to a master station or controller when the plunger switch is depressed and activates the internal sensor switch.

A home appliance antenna assembly is integrated into the home appliance and extends from a demand response module or the appliance microprocessor where the module is integrated into the appliance. At least a portion of the antenna is preferably located adjacent an external surface of the home appliance and adapted for radio frequency (RF) communication. If an external demand supply module is wired to the home appliance, a conventional connection cable typically includes a spare wire that is not used and can thereby serve as a long wire antenna. In other appliances where the module is integrated into the appliance, an antenna is incorporated into the appliance in a utilitarian, but aesthetically unobtrusive manner.

An antenna (100) includes an antenna radiating element (108) that is at least partially comprised of a conductive fluid (104). A dielectric structure (102) defines at least one cavity (110A, 110B) for constraining the conductive fluid. The antenna also includes a fluid control system (116A, 116B, 118A, 118B, 120A, 120B, 122) for selectively adding and removing the conductive fluid from the cavity for controlling a dimension of the antenna radiating element (108). The antenna radiating element (108) can be comprised of a plurality of cavities (110A, 110B), with each cavity defining a segment of the antenna radiating element (108).

A capsule for medical use which is to be passed through a tract of a human or animal body includes a capsule-shape case, a wire antenna placed in a wrapped or folded state on at least a portion of an outer surface of the case, and a fixing member configured to fix the wire antenna in the wrapped or folded state, wherein the fixing member is configured to release the antenna inside the tract.

The present invention deals with wireless control of a lamp such as a fluorescent lamp controlled by a ballast with a wireless control interface for RF communication. The receiver input and the transmitter output of the control interface module are connected to one or more mains wires by means of (a) coupling capacitor(s) or a Lecher line transformer. During operation the one or more mains wires serve as the lamp antenna.

In the field of circular-polarized planar wire antennas for very wide band telecommunications systems, and an antenna reflector for such an antenna, an antenna device comprises an antenna reflector and an antenna, and a method for implementing the antenna reflector. The antenna reflector comprises, on the one hand, a first reflection region exhibiting electromagnetic properties of an electrical conductor in a first sub-band of frequencies and, on the other hand, a second reflection region exhibiting electromagnetic properties akin to a magnetic conductor in a second sub-band of frequencies. Each reflection region is designed to face a region of the antenna able to emit electromagnetic radiation in the corresponding sub-band of frequencies in order to reflect the electric field of the backward radiation in phase with the electric field of the forward radiation.

The invention concerns a support for an antenna, such as a RFID antenna, used in a flexible cover, for example a passport cover, whereby said antenna is surrounded by material of said cover. Said support comprises means for disconnecting the antenna from the surrounding material so that bending stress applied to said material is not transferred to the antenna. The support may be used in different products, for example in passports.

An antenna assembly is disclosed. The antenna assembly includes a dual band vertical loop wire antenna extending from a printed circuit board positioned over a ground plane, wherein the wire antenna includes: at least one coiled section, at least one straight wire section, and at least one feeding post section.

The invention provides a radio direction finding system and a radio direction finding method. According to the radio direction finding system and the radio direction finding method, based on the framework of a double-base wire antenna, the distances between antennae which are adjacent in a certain direction are set to be larger than or equal to 0.5 time of the wave length, and the distance difference is set to be smaller than 0.5 times of the wave length; corresponding intermediate-frequency signals are generated after a double-channel homologous receiver module conducts frequency selection, filtering, amplification and down-conversion on received radio-frequency signals, and then the intermediate-frequency signals are sent to a direction finding plate to be processed; finally, differential processing is conducted on a double-base wire for direction finding. According to the radio direction finding system and the radio direction finding method, the difference method is adopted to eliminate phase ambiguity, the method is easy to realize, the realizing speed is high, and the number of occupied resources is small; due to the adoption of an orthogonal phase discriminator, errors caused by the change of the amplitudes of the received signal can be eliminated, antenna phase discrimination results are more accurate, and a measurement angle can be obtained more accurately.

The present invention relates to an ultrabroad band double-faced transition groove wire antenna using coplanar waveguide feed, which is an antenna having the advantages of simple structure, low cost, easy mass production, ultrabroad band working property and high gain. The ultrabroad band double-faced transition groove wire antenna comprises a double-faced transition groove wire plate (1) and a back plate (2) which are mutually connected vertically, wherein the double-faced transition groove wire plates (1) is vertically inserted from a side groove (23) of the back plate (2) with a single-side metal layer (22); a welding location sheet (13) and a back plate metal (222) are welded to be fixed; a transition groove wire (11) of the upper half part of the double-faced transition groove wire plate (1) is welded with the back plate metal (222) to be fixed, and the transition groove wire (11) of the lower half part of the double-faced transition groove wire plate (1) is welded with a central conduction band (221) of a coplanar waveguide. Thus electric contact is ensured. An anharmonicity feed structure can effectively widen the working frequency band of the ultrabroad band double-faced transition groove wire antenna on the basis that the radiance of the ultrabroad band double-faced transition groove wire antenna is ensured.

An antenna including one or more IC bond bands configured to connect to a signal port on an IC, one or more substrate bond pads, a bond wire antenna (BWA) connected between the one or more IC bond bands and the substrate bond pads, and a resonant cavity adjacent the one or more substrate bond pads.