32 results about "Microstrip patch array" patented technology

A sub-array of slot-coupled microstrip antennas fed using microstrip lines on an opposing substrate. Also provided is an omni-directional antenna comprised of six of the sub-arrays arranged in a hexagonal fashion. The gain of the antenna is ˜6 dB with a 3 dB elevation beam width of ˜30 degrees. The design provides constant beam angle over frequency, which is important for frequency-hopping applications, and the potential to add beam control to mitigate jamming in different sectors.

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 invention discloses an ultra-compacted microstrip patch array antenna. The ultra-compacted microstrip patch array antenna comprises a dielectric plate, an antenna array and a metal floor, wherein the antenna array and the metal floor are arranged on the dielectric plate; the antenna array consists of more than two antenna array units; each antenna array unit comprises a feeder line and a radiation patch; a decoupling network is arranged between the radiation patches of every two antenna array units; and a certain gap is reserved between the decoupling network and the two radiation patches; and each decoupling network adopts an interdigital structure formed by a left comb tooth and a right comb tooth which are inserted oppositely. According to the ultra-compacted microstrip patch array antenna, the electromagnetic mutual coupling between the arrays can be greatly lowered while the excellent bandwidth performance of the antenna unit is ensured, so that the miniaturization of the antenna is realized while certain performance is ensured, so as to realize the ultra-compacted structure of the array antenna.

The invention provides a planar high-gain microstrip reflectarray antenna comprising a feed source, a polarized grid and a reflecting surface. The feed source is composed of a 2*2 microstrip patch array. The polarized grid is composed of a printed dipole array. The reflecting surface is in an array unit design composed of 96 reflecting units; a microstrip metal patch layer of each reflecting unit is a square microstrip patch. The polarized grid and the reflecting surface are hinged and fixed through a support of metal posts, so that polarization direction of printed dipoles of the polarized grid is consistent to that of the feed source. In this way, a foldable reflectarray antenna is made. The planar high-gain microstrip reflectarray antenna has the advantages of simplicity in structure and feed, high gain, low profile, high polarization purity and the like; processing is easy, manufacturing cost is low, and the antenna is easily acceptable and producible to processing enterprises.

The invention belongs to the technical field of antenna, and provides an LTCC double-layer single-feed circularly polarized microstrip patch array antenna unit, for solving the contradiction that a current circularly polarized microstrip patch array antenna needs to consider both low profile, circular polarization, high gain, and broadband development. In the LTCC double-layer single-feed circularly polarized microstrip patch array antenna unit, an upper layer of radiation metal patch and a lower layer of radiation metal patch are different in the size; the resonant frequency point of the lower layer of radiation metal patch is higher than the center frequency of the antenna unit; the resonant frequency point of the upper layer of radiation metal patch is lower than the center frequency ofthe antenna unit; the chamfer size of the lower layer of radiation metal patch is greater than the chamfer size of the upper layer of radiation metal patch; and the chamfer size of the upper and lower layers of radiation metal patches enables the single point feed square patch to generate two orthogonal degeneration modes with the same amplitude to form a 90 DEG phase difference. The LTCC double-layer single-feed circularly polarized microstrip patch array antenna unit utilizes the upper and lower radiation metal patches with the same shape and different size, thus being able to preferably consider both the performance demands for low profile and circular polarization of the microstrip patch chip, and greatly improving the frequency band bandwidth of the antenna.

The invention relates to a vertical polarization directional-printing filtering antenna, which comprises a three-layer structure, wherein the middle layer is a medium layer; the front side of the medium layer is an upper-surface metal layer (1); all the back of the medium layer is a metal layer which is called a lower-surface metal layer; one end of the upper-surface metal layer (1) is connected with a microstrip line (4); the microstrip line (4) is connected with a SIW (Substrate Integrated Waveguide) transmission line by a microstrip transition line (5); the SIW transmission line is provided with an SIW inductive window filter coupling window (8) formed by a metallized through hole (7) and with an SIW inductive window filter resonant cavity (9); the SIW transmission line is connected with a crossfeed microstrip patch array by a graded-index microstrip line (6); and the crossfeed microstrip patch array is formed by the feeding of a metal patch (2) by a metal connecting line (3). The antenna is easy to manufacture, has high machining precision and is especially suitable for high frequency, such as a Ku waveband.

The invention discloses a vertically polarized omnidirectional printing filtering antenna which is prepared by employing printed circuit board (PCB) technology. The antenna is characterized in that: the antenna comprises a lower surface metal layer, a dielectric layer and an upper surface metal layer from the top down; one end of the upper surface metal layer is provided with a microstrip line which is connected with an SIW (substrate integrated waveguide) transmission line through a microstrip gradually change line, and the SIW transmission line is connected with a first series feed microstrip paster array through a gradually change printing parallel wire; the lower surface metal layer is provided with a second series feed microstrip paster array. The vertically polarized omnidirectional printing filtering antenna has the characteristics of easy preparation and high processing precision, and is especially suitable for high frequency like a Ku wave band usage.

The invention relates to a multi-beam scanning antenna comprising a first PCB, a second PCB and a third PCB. The three PCBs closely fit one another from bottom to top. A metal grounding plate and a Rotman lens are arranged on a substrate of the first PCB. A micro-strip patch array and a direct-current loading line are arranged on a substrate of the third PCB. One side of the second PCB is provided with through holes in which coaxial connectors are arranged to connect the first PCB and the third PCB. Each of the coaxial connectors includes a metal wire core which is coated with an insulating medium, and both ends of the metal wire core extend out of the insulating medium. The micro-strip patch array is composed of at least two micro-strip patch linear arrays, each micro-strip patch linear array includes at least two micro-strip patch units, and every two micro-strip patch units are connected by a micro-strip line. Compared with the prior art, electric scanning in a two-dimensional space can be realized, and the antenna of the invention is simple in structure and convenient to maintain.

An apparatus for repeating a signal from a satellite using a microstrip patch array antenna is disclosed. The apparatus includes: a receiving unit for receiving the signal and amplifying the receiving signal; a radiating unit for radiating the amplified signal to the shadow area; and a feeding unit for feeding the amplified signal to the radiating unit.

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 low-loss frequency scanning antenna plane array based on a hybrid feeding structure in a limited bandwidth. The frequency scanning array is composed of a plurality of parallel subarrays, including a double-layer microstrip patch array, a metal floor, an E-plane bent waveguide, a waveguide slot and a microstrip line electromagnetic coupling feeding structure, a waveguide power splitter and a 180-degree elbow, wherein one end of the E-plane bent waveguide is a feeding port, the other end is a waveguide port connected with a matching load, and the sub-array is fed by anE-plane waveguide power splitter; a metal floor with an elliptical slot is placed on an E-plane waveguide, a microstrip line is arranged at a position corresponding to each slot on a dielectric substrate to form an electromagnetic coupling feeding structure, and two sides of each microstrip line are respectively connected with a microstrip transmission line, and ports of the microstrip transmission line are respectively connected with corresponding microstrip patch units. The invention significantly broadens the bandwidth, reduces the loss of the frequency scanning slow wave line, improves theefficiency and the gain of the array, and improves the performance of the frequency scanning antenna.

The present invention discloses a wideband and wide-angle scanning low-profile array antenna. The antenna includes a first dielectric layer, a metal grounding layer and a second dielectric layer which are stacked sequentially from top to bottom; the upper surface of the first dielectric layer is provided with M rows of metal patches distributed as a rectangular array; the rectangular array includes L sub-arrays; each sub-array is composed of metal patches in M rows and N columns; every two adjacent sub-arrays share K columns of metal patches; L feed slits distributed along the row direction of the rectangular array are formed in the metal grounding layer; each feed slit is correspondingly arranged just below one sub-array; the lower surface of the second dielectric layer is provided with L microstrip lines; and one end of each microstrip line is correspondingly adopted as the feed port of one sub-array, and the horizontal projection of the other end of each microstrip line correspondingly perpendicularly intersects with the horizontal projection of one feed slit. Compared with a conventional microstrip patch array, the wideband and wide-angle scanning low-profile array antenna of the present invention has wider bandwidth and a wider scanning angle.

The invention provides a planar microstrip patch array antenna. The planar microstrip patch array antenna comprises one row of radiation patch array composed of radiation patches which are arrayed along the straight line, wherein feed networks, which are symmetrical mutually, are arranged on two sides of the radiation patch array; feed notches, which are symmetrical mutually, are formed in two central positions of radiation edges on two sides of each radiation patch; and a central feed point of each feed notch is connected with the feed network located on the same side. By adopting the planar microstrip patch array antenna provided by the invention, the problems of an existing planar microstrip patch array antenna that an antenna radiation pattern is asymmetrical and double ports need to be switched to a single port in a differential connection process of a radio frequency front-end circuit can be solved.

A microstrip patch array antenna suppressing side lobes. The microstrip patch array antenna have a plurality of antenna array elements on two-dimensional planar having A axis and B axis for suppressing side lobes, wherein the antenna array elements are linearly arranged in a direction of the A axis by spacing a first predetermined distance between the antenna array elements, the arranged array elements are arranged in a direction of the B axis by spacing a second predetermined distance between the antenna array elements and a predetermined portion of the microstrip patch array antenna having the arranged array elements are horizontally shifted to a predetermined distance. The present invention can reduce leakage of signal or prevent to receive undesired signal and to transmit signals to undesired direction by using the above mentioned array pattern instead of reducing a distance of spacing between antenna elements.

The embodiment of the invention discloses a remote charging method, device and system, and the method comprises the steps: transmitting a charging request and charging related information to a transmitting control end when the current electric quantity is detected to be lower than a set electric quantity; entering a target charging track according to a charging flight path sent by the transmittingcontrol end, wherein the target charging track corresponds to the charging priority of an unmanned aerial vehicle, and the charging priority is determined according to related factors of the chargingdemand of the unmanned aerial vehicle after the identity authentication of the unmanned aerial vehicle is passed; and on the target charging track, receiving a microwave signal sent by a transmittingantenna array through a receiving antenna so as to conduct charging, wherein the receiving antenna is a cylindrical microstrip patch array antenna and is arranged on the lower surface of the wing ina patch form, the inner surface of the receiving antenna is a grounding plate, the outer surface is a metal patch and a feed network, and the middle is a dielectric plate. By adopting the technical scheme, the charging queuing problem of the unmanned aerial vehicle is solved, and the charging efficiency is improved.

Disclosed is a system and method for a 24-GHz phased array for indoor smart radar comprising at least 6 horizontally placed antenna elements as a vertically placed 5-element series-fed microstrip patch array. The beam of the phased array can be continuously steered on the H-plane to different directions through a novel vector control array. Each element can adjust the phase and amplitude of the corresponding element of the horizontally placed linear array. The phased array system of the present invention may be fabricated on a single printed circuit board (PCB), and PIN diodes are used to realize beam steering by modulating the decomposed received signal. In order to compensate for the loss of the vector control array and reduce the noise figure, six low noise amplifiers (LNAs) are also used in the array. The present invention has the ability to continuously steer the beam on the H-plane.

The invention discloses a parasitic patch array antenna with substrate integrated waveguide feed. The parasitic patch array comprises a first dielectric plate, a second dielectric plate, a third dielectric plate and a fourth dielectric plate. The parasitic patch array is characterized in that the first dielectric plate is positioned above the second dielectric plate; the second dielectric plate ispositioned above the third dielectric plate; and the third dielectric plate is positioned above the fourth dielectric plate. The first dielectric plate is provided with an annular patch; the second dielectric plate is provided with a main radiation patch; metal through hole structures on the third dielectric plate and the fourth dielectric plate form a one-to-four substrate integrated waveguide feed network, and feed is carried out on the main radiation patch through a gap in the third dielectric plate. The annular patch plays a guiding role, and the substrate integrated waveguide feed network plays a role in reducing feed loss. The array antenna overcomes the defects of large feed loss and low gain of a microstrip patch array antenna, has the advantages of low profile, small size and easiness in planar circuit integration, and can be used for low-profile terahertz or millimeter wave communication.

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 provides a W-band reconfigurable microstrip filter based on intercalated graphene. The W-band reconfigurable microstrip filter comprises a metal grounding plate, a dielectric substrate,a plurality of microstrip patches and a plurality of intercalated graphene structures, wherein a layer of the metal grounding plate is deposited on the bottom surface of the dielectric substrate, theplurality of patches are arranged on the surface of the dielectric substrate in an array manner to form a microstrip patch array structure, and a circle of the intercalated graphene is arranged aroundthe patch array structure. According to the invention, the change of the conductivity of the intercalated graphene affects the coupling capacitance with the patch unit, and finally changes the resonant frequency and passband number of the filter, so the change of the microstrip filter in a frequency range is more flexible, the problem of irreversible operation of a printed board is solved, and the application field in production practice is expanded. Structurally, the micro-strip coupling filter of an array structure is adopted, and the size of the filter can be further reduced on the premisethat the performance is not changed.

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 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.

The invention relates to a conformal antenna technology, in particular to a rapid estimation method for the directional diagram of a radian-deformed conformal microstrip patch antenna, which sequentially comprises the steps of modeling a microstrip patch antenna on a dielectric plate, simulating a microstrip patch antenna model, obtaining a radiation electric parameter value, determining an H-surface directional diagram function of the curved surface microstrip patch antenna through curve fitting, and obtaining an H-surface directional diagram and a directional diagram function of a conformal antenna formed by a curved surface microstrip patch array. The invention provides an effective antenna direction rapid estimation method for the patch microstrip antenna influenced by deformation. The method comprises the following steps: simulating antennas with different degrees of deformation to obtain antenna radiation pattern data, and performing curve fitting to obtain an antenna H-surface pattern function formula, so that a deformed conformal microstrip patch antenna array far-field H-surface pattern can be quickly calculated through the formula. When the directional diagram of the deformed microstrip antenna is calculated, the formula provided by the invention can be applied mechanically to achieve rapid calculation.

Embodiments of the present invention provide an antenna and a communication terminal. The antenna includes: an antenna support base plate, and a plurality of active array modules arranged on the antenna support base plate; the plurality of active array modules are arranged in a matrix, and each active array module has a first preset distance; each has The source array module includes a plurality of active integrated antenna units, and there is a second preset distance between each active integrated antenna unit; the active integrated antenna unit includes an insulating substrate and a plurality of arranged in a matrix on the insulating substrate, An open microstrip patch array element with a symmetrical structure, and there is a third preset distance between each open microstrip patch array element, the first preset distance, the second preset distance and the third preset distance are based on the open The operating wavelength of the microstrip patch array element is determined. The communication terminal includes the antenna. The antenna and the communication terminal provided by the invention improve the application efficiency of the antenna.