摘要:
A wireless communication device including an antenna device is provided. The wireless a communication device includes a housing having a conductive structure, a millimeter wave (mmWave) antenna havinga plurality of antenna elements, the mmWave antenna being disposed within the housing, and a leaky-wave radiator having at least one opening formed in the conductive structure of the housing. An electromagnetic field generated by the mmWave antenna may be radiated outside of the housing of the wireless communication device through the leaky-wave radiator. The wireless communication device and/oran electronic device may be diversified according to embodiments.
摘要:
An antenna array employing continuous transverse stubs as radiating elements includes a first conductive plate structure including a first set of continuous transverse stubs arranged on a first surface, and a second set of continuous transverse stubs arranged on the first surface, wherein a geometry of the first set of continuous transverse stubs is different from a geometry of the second set of continuous transverse stubs. A second conductive plate structure is disposed in a spaced relationship relative to the first conductive plate structure, the second conductive plate structure having a surface parallel to the first surface. A relative rotation apparatus imparts relative rotational movement between the first conductive plate structure and the second conductive plate structure.
摘要:
An apparatus (100) is provided for causing a phase-shift in reflected signals (R) that are a reflection of surface-traveling wave signals (S) of a select signal frequency. The apparatus (100) comprises a conductive strip (102) having a plurality of slots (104) therein alternatingly arranged orthogonal to each other, each slot (104) having an effective length (L) that is a fraction between 9/16 and 7/8 of the wavelength associated with the select signal frequency, and a plurality of conductive enclosures (106) respectively disposed under each of the plurality of slots (104). Each of the conductive enclosure (106) have a width and length sufficient to enclose a respective corresponding slot (104), and a depth that is a fraction of between 1/8 and 3/8 of the wavelength associated with the select signal frequency when transmitted in the dielectric material (110). The plurality of slots (104) and plurality of conductive enclosures (106) cause a phase-shift in the range of 150 to 210 degrees in reflected signals (R) that are a reflection of surface-traveling wave signals at the select signal frequency which impinge the apparatus (100).
摘要:
Aspects of the subject disclosure may include, for example, a transmission device that includes a transmitter that generates a first electromagnetic wave to convey data. A coupler couples the first electromagnetic wave to a single wire transmission medium having an outer surface, to forming a second electromagnetic wave that is guided to propagate along the outer surface of the single wire transmission medium via at least one guided wave mode that includes an asymmetric or non-fundamental mode having a lower cutoff frequency. A carrier frequency of the second electromagnetic wave is selected to be within a limited range of the lower cutoff frequency, so that a majority of the electric field is concentrated within a distance from the outer surface that is less than half the largest cross sectional dimension of the single wire transmission medium, and/or to reduce propagation loss. Other embodiments are disclosed.
摘要:
A dielectric hollow antenna apparatus includes a hollow inside tapered rod (e.g., a waveguide) with a flat section and a cap. The antenna further includes a feed through section, a feed pin, and a metal flange. A low loss dielectric material fills the hollow rod that protrudes beyond the metal waveguide to form a radiating element. The radiating element is designed in such a way to maximize radiation and minimize reflections over the antenna bandwidth. The feed through section reduces internal reflection and the waveguide is designed to include a rectangular waveguide that support a propagation (TE01) mode and the waveguide then transitions to a circular waveguide that supports another propagation (TE11) mode. The antennas can be employed for radar level gauging and withstand high temperature and possesses a small diameter that permits the antenna to fit in small tank nozzles.
摘要:
The present invention relates to the field of communications technologies and discloses an antenna and a wireless device. The antenna includes: a main body, where the main body includes a top board and a bottom board, where multiple radiation structures are provided on the top board and a feed structure is provided on the bottom board; and multiple lines of gain compensation structures, for partitioning the main body to at least two radiation areas, where each line of gain compensation structure includes multiple gain compensation units and a shielding structure, and the shielding structure is located between the top board and the bottom board. Each gain compensation unit includes: a first coupling structure located on a side that is of the shielding structure and that faces the feed structure, where at least a portion of the first coupling structure is located between the top board and the bottom board; a second coupling structure located on a side that is of the shielding structure and that faces away from the feed structure, where at least a portion of the second coupling structure is located between the top board and the bottom board; and a first single stage traveling wave amplifying unit, where when the first single stage traveling wave amplifying unit is working, an input end of the first single stage traveling wave amplifying unit is connected to the first coupling structure and an output end of the first single stage traveling wave amplifying unit is connected to the second coupling structure. Aperture efficiency and an antenna gain of the antenna are relatively high.
摘要:
An antenna array employing continuous transverse stubs as radiating elements includes a first conductive plate structure including a first set of continuous transverse stubs arranged on a first surface, and a second set of continuous transverse stubs arranged on the first surface, wherein a geometry of the first set of continuous transverse stubs is different from a geometry of the second set of continuous transverse stubs. A second conductive plate structure is disposed in a spaced relationship relative to the first conductive plate structure, the second conductive plate structure having a surface parallel to the first surface. A relative rotation apparatus imparts relative rotational movement between the first conductive plate structure and the second conductive plate structure.