4results 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.

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).