13results about "Electrically long antennas" patented technology

The invention relates to an antenna element (1) for an antenna array with a dielectric first antenna bar (3) and a dielectric second antenna bar (4), wherein a converter section (5) is formed in the antenna element (1) in which the first antenna bar (3) tapers in cross-section along a longitudinal direction and the second antenna bar (4) is formed at a distance from the first antenna bar (3) forming a gap (6) and increases in cross-section, and the longitudinally extending gap (6) has a gap medium of a lower permittivity than the permittivity of the first antenna bar (3) and the second antenna bar (4), so that a mode of a signal coupled into the antenna element (1) is guided in the gap (6). In this way, a low-loss, broadband antenna element is provided, in which the propagation time of a signal can be easily adjusted.The antenna element according to the invention is also compact and cost-effective to manufacture and easy to integrate.

This invention relates to a cavity filter for antennas. Specifically, the invention includes: a filter body having multiple cavities, one side of which is open and divided by a partition; resonant rods respectively disposed in the multiple cavities; a resonant rod boss into which a portion of the resonant rod is inserted, such that the resonant rod is disposed in the cavity; and a tolerance management stop disposed between the inner circumferential surface of the resonant rod boss and the outer circumferential surface of the resonant rod, which performs a movement and stop function along the insertion direction of the resonant rod when designing the resonance of the cavity. This provides the advantage of improving the overall production yield of the product.

A conformal antenna system for Synthetic Aperture Radar (SAR) applications, the system comprising a tubular POD, a curved vertically polarized radio frequency (RF) antenna conformally integrated into a curved surface of the tubular POD at a first location, and a curved horizontally polarized RF antenna conformally integrated into the curved surface of the tubular POD at a second location, wherein the first location and the second location are arranged such that the curved vertically polarized RF antenna and the curved horizontally polarized RF antenna share a common RF emission axis.

Radar transceiver device (1) for radar signals with a frequency-selective radar transmitter unit (2) and / or with a frequency-selective radar receiver unit (3), wherein the frequency-selective radar transmitter unit (2) of the radar transceiver device (1) comprises a digital-to-analog converter (2A) designed to convert a broadband digital signal provided for all transmit channels into an analog transmit signal, a signal modulator (2B) that modulates a signal carrier with the analog transmit signal output by the digital-to-analog converter (2A) to generate a modulated transmit signal, and has at least one frequency-selective component (2C) designed to divide the transmit signal modulated by the signal modulator (2B) into several transmit (TX) channels for transmission as a radar signal, and wherein the frequency-selective radar receiver unit (3) of the Radar transceiver device (1) at least one frequency-selective component (3C),which is designed to combine a received radar signal comprising several receive (RX) channels, a signal demodulator (3B) which demodulates the radar signal combined by the frequency-selective component by means of a signal carrier to generate a demodulated receive signal, and includes at least one analog-to-digital converter (3A) which is designed to sample the received signal demodulated by the signal demodulator (3B) to generate a digital receive signal.

An RFID antenna having two flexible elongated conductive transmission lines with coplanar RFID energy radiation perturbations distributed along the transmission lines, the transmission lines and perturbations being folded between ends of the transmission lines so that the transmission lines of one fold overlie and are adjacent the transmission lines of the other fold and an electrically insulating layer disposed between lengths of the transmission lines on either side of the fold.

A radar transceiver for radar signals, having a frequency-selective radar transmitting unit and / or a frequency-selective radar receiving unit, the frequency-selective radar transmitting unit comprising: a digital-to-analog converter for converting broadband digital signals provided for all transmitting channels into analog transmitting signals, a signal modulator that modulates a signal carrier by means of an analog transmission signal output by the digital-to-analog converter to generate a modulated transmission signal, at least one frequency selective component that distributes the transmission signal modulated by the signal modulator to a plurality of transmission channels as radar signal radiation; the frequency-selective radar receiving unit comprises at least one frequency-selective component for combining a received radar signal comprising a plurality of receiving channels, a signal demodulator for demodulating the radar signal combined by the frequency-selective component by means of a signal carrier to produce a demodulated received signal, and at least one analog-to-digital converter that samples the received signal demodulated by the signal demodulator to generate a digital received signal.

The present invention provides an antenna unit that can suitably widen the beam width by 3 dB. [Solution] The antenna unit comprises a single feeding antenna provided in a dielectric and a pair of parasitic antennas provided in the dielectric on one side and the other side with respect to the single feeding antenna. The feeding antenna has a feeding body that includes a feeding line and a radiating element fed from the feeding line. The pair of parasitic antennas consist of a first parasitic antenna provided on one side and a second parasitic antenna provided on the other side with respect to the single feeding antenna, and each parasitic antenna includes a parasitic body that is substantially the same shape as the feeding body and a phase adjustment line extending from its end. The single feeding antenna is a horizontally polarized antenna, with a free-space wavelength λ, a dielectric wavelength λg, and the sum of the two λe, and the sum of the first pitch and first length, and the sum of the second pitch and second length are between 0.75λe+[(λ / 2)×n] and 1.05λe+[(λ / 2)×n] (where n is an integer of 0 or more).

A radar transceiver device for radar signals with a frequency-selective radar transmitting unit and / or with a frequency-selective radar receiving unit. The frequency-selective radar transmitting unit has a digital-to-analog converter to convert a broadband digital signal provided for all transmission channels into an analog transmission signal, a signal modulator which modulates a signal carrier with the analog transmission signal emitted by the digital-to-analog converter, and at least one frequency-selective component to partition the transmission signal modulated by the signal modulator to a plurality of transmission channels for emission as a radar signal. The frequency-selective radar receiving unit includes a frequency-selective component to combine a received radar signal including a plurality of receive channels, a signal demodulator which demodulates the radar signal combined by the frequency-selective component using a signal carrier, and at least one analog-to-digital converter.

A battery management system includes a primary module in wireless communication with a plurality of sensing, or secondary, modules over a range of frequencies within a predetermined frequency band. Each of the primary module and the sensing modules can be configured to transmit with an antenna polarization setting chosen from a plurality of polarization settings. Each of the sensing modules is configured to communicate with the primary with a predetermined one of its polarization settings for each channel. The primary module is also configured to communicate with a respective secondary module with a predetermined polarization setting for each channel.

A vehicle (2) equipped with a movable assembly (1) comprises a tire (12) set in rotation about an axis (102), the movable assembly (1) being equipped with a radiofrequency transponder (100) and a reading system (3) comprising: a generator coupled to a demodulator (31) of electrical signals; and a cable (32) galvanically connected to the generator (31), secured to the transport means (2) and comprising a radiating part (342) A projection R on a cylinder (104), with an axis of revolution (102), circumscribing the tire (12), of the radiating part is less than 1 meter, and the radiating part (342) comprises a meander (500) defined by a width “P” and a length “L”, the curvilinear length of the meander (500) being between 0.7 and 1.3 times the wavelength L0 associated with the communication frequency of the reading system (3).

A conformal antenna system for Synthetic Aperture Radar (SAR) applications, the system comprising a tubular POD, a curved vertically polarized radio frequency (RF) antenna conformally integrated into a curved surface of the tubular POD at a first location, and a curved horizontally polarized RF antenna conformally integrated into the curved surface of the tubular POD at a second location, wherein the first location and the second location are arranged such that the curved vertically polarized RF antenna and the curved horizontally polarized RF antenna share a common RF emission axis.

An electronic device may comprise: a display; an antenna module; a conductive connection member; and at least one antenna structure. The display may be arranged in the inner space of a housing to be visible from the outside and may include a curved side surface portion. The antenna module may be arranged in the inner space of the housing. The conductive connection member may be electrically connected to the antenna module. The at least one antenna structure may be arranged on a side surface portion of the display. The conductive connection member may electrically connect the antenna structure to the antenna module. The antenna structure may include at least one first-type antenna and at least one second-type antenna that radiate radio waves in different directions. Various other embodiments may be possible.