32 results about "Microstrip patch array" patented technology

The invention belongs to the technical field of antennas, and provides an LTCC double-layer single-feed circularly polarized microstrip patch array antenna unit to solve the problem of the existing circularly polarized microstrip patch array antenna taking into account its low profile, circular polarization, and high The contradiction between gain and broadband development; in the antenna unit of the present invention, the size of the upper radiating metal patch is different from that of the lower radiating metal patch, and the resonance frequency of the lower radiating metal patch is higher than the center frequency of the antenna unit and the resonant frequency of the upper radiating metal patch The point is lower than the center frequency of the antenna unit; the cut angle size of the lower radiation metal patch is larger than the cut angle size of the upper radiation metal patch, and the cut angle dimensions of the upper and lower radiation metal patches make the single-point feed square patch produce Two orthogonal degenerate modes with equal amplitudes form a 90° phase difference; the present invention better takes into account the low profile and circular pole of the microstrip patch antenna by using the upper and lower radiating metal patches with the same shape and different sizes. Optimized performance requirements, while greatly improving the frequency bandwidth of the antenna.

The invention belongs to the technical field of antennas, and in particular relates to a novel LTCC wideband circularly polarized microstrip patch array antenna, which is used to overcome the disadvantages of the existing circularly polarized microstrip patch array antenna in consideration of its low profile, circular polarization, and high Insufficient in terms of gain and broadband. The antenna includes a grounded metal layer, a lower dielectric substrate, a lower metal patch antenna, an upper dielectric substrate, and an upper metal patch antenna stacked in sequence from bottom to top. The upper and lower metal patch antennas are respectively composed of several The upper and lower metal patch units are composed of square metal patches with cut corners of the same size and rectangular grooves are opened at the corners, and rectangular grooves are opened on the four sides of the upper metal patch unit. Slits, rectangular slits are also opened on the other three sides of the metal patch unit on the lower layer except the feeding side. The present invention can have smaller size, higher gain, better circular polarization performance and wider frequency bandwidth under the limitation of the same number of array elements.

The embodiment of the present invention discloses a remote charging method, device and system, wherein, when it is detected that the current power is lower than the set power, a charging request and charging related information are sent to the transmitting control terminal; The flight path enters the target charging track, wherein the target charging track corresponds to the charging priority of the drone, and the charging priority is determined according to the relevant charging requirements of the drone after the drone identity authentication is passed. The factors are determined; on the target charging track, through the receiving antenna, the microwave signal sent by the transmitting antenna array is received for charging; wherein, the receiving antenna is a cylindrical microstrip patch array antenna, which is arranged in the form of a patch On the lower surface of the wing; the inner surface of the receiving antenna is a ground plate, the outer surface is a metal patch and the feed network, and the middle is a dielectric plate. By adopting the above technical solution, the problem of queuing for charging of drones is solved, and the charging efficiency is improved.

The invention relates to a millimeter wave circularly polarized one-dimensional sum-difference vehicle-mounted communication antenna, belonging to the technical field of antennas. The antenna comprises a planar sum-difference network, coupled-fed slots, waveguide slots, metal walls, a microstrip slot surface, rigid support foam, a microstrip circularly polarized gate and a metal sheet, wherein a sum port and a difference port of the planar sum-difference network are ports connected with the outside; the waveguide slots are formed on the back of the planar sum-difference network; the waveguide slots and the planar sum-difference network are connected by the coupled-fed slots; the metal walls are positioned at the two sides of the waveguide slots; the planar sum-difference network, the coupled-fed slots, the waveguide slots and the metal walls integrally serve as an antenna back sheet; the metal sheet is positioned on the reverse side of the antenna back sheet and covers the planar sum-difference network; the microstrip slot surface is bonded with the waveguide slots by conductive adhesives; the rigid support foam is positioned between the metal walls, is fixed on the metal walls and covers the microstrip slot surface; and the microstrip circularly polarized gate is pasted on the upper surface of the rigid support foam. The antenna has the following beneficial effects: the defects of high processing cost, low yield, small work bandwidth and long processing period of metal waveguide slot arrays and the defect of low gain of microstrip patch array antennas are overcome.

The purpose of the present invention is to provide a double-layer single-feed circularly polarized microstrip patch array antenna based on LTCC technology, including upper and lower LTCC substrates, feeding networks, upper and lower radiation metal patch antenna arrays, and metal probes , a feed port and a grounded metal layer, wherein the lower radiating metal patch antenna array and the feeding network are located on the upper surface of the lower LTCC substrate, and the upper radiating metal patch antenna array is located on the upper surface of the upper LTCC substrate; the upper, The shape and size of the radiating metal patch antenna array in the lower layer are the same. Each antenna array is composed of four sub-arrays, and each sub-array is composed of four radiating metal patches. Each radiating metal patch is a square with a cut corner. Open rectangular gaps on opposite sides of the group. The antenna better takes into account the performance requirements of a microstrip patch antenna with low profile, circular polarization, and high gain, and at the same time greatly increases the frequency bandwidth of the antenna.

The invention provides a W-band reconfigurable microstrip filter based on intercalated graphene, including a metal ground plate, a dielectric substrate, a plurality of microstrip patches and a plurality of intercalated graphene structures; wherein the bottom surface of the dielectric substrate Depositing a layer of the metal ground plate, a plurality of the patches are arranged in an array on the surface of the dielectric substrate to form a microstrip patch array structure, and a circle of the intercalated graphite is arranged around the patch array structure alkene. The present invention affects the coupling capacitance between the intercalated graphene and the patch unit through the change of the conductivity of the intercalated graphene, and finally changes the resonant frequency and the number of passbands of the filter. The change of the microstrip filter in the frequency range is more flexible. , which solves the irreversible problem of printing plate operation and expands the application field in production practice. In terms of structure, the microstrip coupling filter with array structure can further reduce the size of the filter under the premise of constant performance.

The invention discloses a millimeter wave linearly polarized vehicle-mounted fanned beam antenna, belonging to the technical field of antennas. The antenna comprises a planar sum-difference network, coupled-fed slots, waveguide slots, metal walls, a microstrip slot surface, rigid support foam and a metal sheet, wherein a sum port and a difference port of the planar sum-difference network are ports connected with the outside; the waveguide slots are formed on the back of the planar sum-difference network; the waveguide slots and the planar sum-difference network are connected by the coupled-fed slots; the metal walls are positioned at the two sides of the waveguide slots; the planar sum-difference network, the coupled-fed slots, the waveguide slots and the metal walls integrally serve as an antenna back sheet; the metal sheet is positioned on the reverse side of the antenna back sheet and covers the planar sum-difference network; the microstrip slot surface is bonded with the waveguide slots by conductive adhesives; and the rigid support foam is positioned between the metal walls, is fixed on the metal walls and covers the microstrip slot surface. The antenna has the following beneficial effects: the defects of high processing cost, low yield, small work bandwidth and long processing period of metal waveguide slot arrays and the defect of low gain of microstrip patch array antennas are overcome.

The invention discloses a parasitic patch array antenna with integrated waveguide feeding on a substrate, comprising a first dielectric board, a second dielectric board, a third dielectric board and a fourth dielectric board, wherein the first dielectric board is located on the second dielectric board Above, the second dielectric plate is located above the third dielectric plate, which is located above the fourth dielectric plate. A ring-shaped patch is arranged on the first dielectric plate, a main radiation patch is arranged on the second dielectric plate, and the metal through-hole structure on the third and fourth dielectric plates constitutes a four-substrate integrated waveguide feeding network , and feeds the main radiating patch through the gap on the third dielectric plate. The annular patch plays a guiding role, and the substrate integrated waveguide feeding network plays a role in reducing the feeding loss. The array antenna improves the shortcomings of large feed loss and low gain of the microstrip patch array antenna, and has the advantages of low profile, small volume, and easy integration of planar circuits, and can be used for low-profile terahertz or millimeter wave communications.

The invention provides a planar high-gain microstrip reflectarray antenna, which includes a feed source, a polarization grid and a reflection surface. The feed source is composed of a 2×2 microstrip patch array, and the polarization grid adopts printed dipoles Array, the reflective surface adopts the design of the array unit, the reflective surface is composed of 96 reflective units, the microstrip metal patch layer of each reflective unit is a square microstrip patch, and the polarization grid and the reflective surface are connected by the bracket of the metal column The link is fixed, so that the polarization direction of the printed dipole in the polarization grid is consistent with the polarization direction of the feed source, and a folded reflectarray antenna is formed. The antenna of the present invention has simple structure and feeding, high gain, and low profile It has the characteristics of high polarization purity, and the processing difficulty is small, the production cost is low, and it is easy to find processing units.

The invention provides an S / Ku dual-frequency common-caliber linear polarization phased array scanning antenna, which aims to provide a composite antenna which is easy to realize dual polarization andsimply processed. The invention is realized by the following technical scheme: a Ku-band micro-strip patch array is distributed on the crisscross rectangular plane of a dielectric plate to form a Ku-band micro-strip array surface, wherein the Ku array surface is a cut-angle array, and the Ku array surfaces at the cut-angles of the four apex angles are attached to a circular aperture antenna mounting plate; a square matrix composed of four S-band dipole oscillators is embedded in the Ku-band micro-strip array surface, and the remaining array S-band dipole oscillators form a circular array in aconcentric circular array distribution with the square matrix of the four S-band dipole oscillators as the center array and are located outside the Ku-band micro-strip array surface; the S-band dipole is fixed to the antenna mounting plate by a flange, and the dipole unit has a standing wave ratio of 1.5 in a relative bandwidth of 10%; and the connection between the Ku-band micro-strip array surface and the rear-end radio-frequency components is in the form of strip line to radio-frequency coaxial feed.