32 results about "Microstrip patch antenna array" patented technology

The invention belongs to the technical field of materials and radomes and discloses an X/K-band composite metamaterial. The X/K-band composite metamaterial comprises a dielectric substrate made of nonconductive material. A metal foil layer is attached to the lower surface of the dielectric substrate, and a resistive film layer is attached to the upper surface of the dielectric substrate. The dielectric substrate, the metal foil layer and the resistive film layer are virtually divided into a plurality of periodically-arranged unit structures. A square metal foil is made on a metal foil layer of each unit structure by etching. A square circular resistive film is made on a resistive film layer of each unit structure by sputtering. Two slots identical in size and perpendicular to each other are made in each square metal foil by hollowing. The frequency selective surface structure of the X/K-band composite metamaterial allows a circularly-polarized microstrip patch antenna array to be consistent in good radiation characteristic under the K band; meanwhile, under the X band, the absorbing material structure of the X/K-band composite metamaterial can absorb incoming electromagnetic wave to allow invisibility.

The invention relates to a wide band one-layer microstrip patch antenna, which solves the problem of narrow impedance width in the currently common microstrip antenna. The microstrip patch of the antenna is a one-layer microstrip patch; one end of a stair-stepping coplane microstrip line with two widths is inserted in the patch antenna by the open slot on a convex microstrip patch, and the other end of a feeding microstrip line is positioned at the edge of a microstrip dielectric-slab; a concave metal carinal cavity is arranged at the back surface of the microstrip dielectric-slab excluding the position corresponding to the microstrip patch and in the middle of structural mounting plate. The wide band one-layer microstrip patch antenna can form a large microstrip patch antenna array easily, which is in favor of impedance matching of the antenna, the subnetwork design for microstrip work, the weight reduction of the antenna and the bandwidth widening of the antenna; the wide band one-layer microstrip patch antenna of the invention has the advantages of simple and compact structure and small cross section, which improves the telecommunication performance and reduces the whole weightof the antenna array.

The present invention discloses a three-dimensional integrated packaging based on a millimeter wave antenna and a silicon-based multi-channel component. The packaging comprises a radiation layer, wherein the radiation layer is a micro-strip patch antenna array; a high resistivity silicon substrate with a TSV feeding structure; a dielectric wiring layer with microwave wirings and digital wirings; asurrounding frame with a TSV three-dimensional vertical transmission structure and an air-tightness packaging cover plate with a TSV transmission structure. According to the packaging, by integratingthe micro-strip patch antenna array, microwave chip(s), digital chip(s) and passive device(s) in a same module via a MEMS process at the same time, the middle part of the surrounding frame has the TSV structure capable of realizing vertical transmission of microwave signal(s), so that integration degree is relative high, the microwave properties are good, the multi-functionalization and the miniaturization of the components can be realized.

The invention discloses a broadband micro-strip antenna array coupling structure, and aims to provide a micro-strip patch antenna array, which is simple in structure, is conveniently and quickly debugged and can effectively reduce side-lobe levels of antennae. According to the technical scheme, a micro-strip patch antenna array body consists of a plurality of antenna radiation units longitudinally arranged on a dielectric support, wherein a coupling groove is formed below a radiation patch of each antenna radiation unit; the length of the coupling groove of each antenna radiation unit is progressively decreased from middle to two ends, so that a gradually variable coupling groove length aperture coupling form is achieved; the antenna radiation units with the coupling grooves which are equal in length are arranged in pairs on the array body; the lengths of the coupling grooves which are symmetrically formed in pairs from left to right are equal; the patch of each antenna radiation unit feeds through a unit feeder perpendicularly passing through the corresponding coupling groove. According to the broadband micro-strip antenna array coupling structure, the lengths of the coupling grooves are progressively decreased from middle to two ends, so that excitation current for the coupling of the feeders to the patches is changed, and the side-lobe levels of the antennae are reduced.

An antenna frame for reducing radar cross section of a vehicle provided with a flat microstrip patch antenna array comprising a number of microstrip patches arranged in an array pattern, the antenna frame:—being arranged to surround the outer periphery of the flat antenna array—the frame comprising a first conductive sheet;—the first conductive sheet extending from the most peripheral patches and outward in a sloping manner; wherein dielectric and magnetic absorbent material are arranged to improve impedance transition from a point of the antenna to a point on the periphery of the frame, which is also contemplated as adjoining a vehicle fuselage.

The present invention provides a vehicle-mounted array radar antenna and an automotive lamp. The vehicle-mounted array radar antenna is embedded in the lampshade of the automotive lamp; and the vehicle-mounted array radar antenna includes a microstrip patch antenna array, a dielectric substrate, and a reflection surface, wherein the microstrip patch antenna array is located at the upper surface ofthe dielectric substrate and is connected with the upper surface of the dielectric substrate, and the reflection surface is located at the lower surface of the dielectric substrate and is connected with the lower surface of the dielectric substrate. The vehicle-mounted array radar antenna provided by the invention has the advantages of low profile, simple structure and convenient installation. The vehicle-mounted array radar antenna is embedded in the lampshade of the automotive lamp with no additional materials adopted; the microstrip array antenna is adopted, and therefore, requirements ofhigh gain and small angles can be met.

An antenna assembly for transmitting or receiving radio waves, comprising: at least one patch antenna element; a three-dimensional (3D) microstrip line feeding network configured to feed the at least one patch antenna element for operation in dual polarisation, the 3D microstrip line feeding network comprising an upper layer and a lower layer; and a ground plane; wherein a first air gap is provided between the at least one patch antenna element and the ground plane, a second air gap is provided between the upper layer of the 3D microstrip line feeding network and the ground plane, and a third air gap is provided between the lower layer of the 3D microstrip line feeding network and the ground plane.

The invention discloses a dual-frequency phased array antenna loaded with a ferroelectric-film phase shifter. The dual-frequency phased array antenna is composed of a dielectric substrate, ground plates, a radiation patch, a microstrip feed network and a BST film phase shifter. The radiation patch is set to have a fan-shaped structure. The BST film phase shifter consists of a signal line, a BST ferroelectric film, and interdigital capacitors; and the interdigital capacitors arranged at the two sides of the signal line symmetrically to form a coplanar waveguide (CPW) structure. The ground plates are arranged at the outer side of the outer sides of the interdigital capacitors symmetrically. And the thickness of the dielectric substrate is 280 to 320 mm. According to the invention, the coplanar interdigital capacitor waveguide type BST ferroelectric-film phase shifter is used as a phase shift unit working at 15-GHz and 18-GHz dual-frequency-band antenna array. On the basis of changing ofthe original rectangular microstrip patch antenna array, a 1*4 fan-shaped microstrip patch antenna array is used creatively. Overall modeling simulation is carried out by using electromagnetic simulation software HFSS. With simulation and giving of different biased electric fields, the radiation steering angle of the antenna array is debugged to realize turning with the angle of +22 degrees or -22degrees of the antenna array.

The invention provides an active phased array antenna unit-level inner monitoring device. The active phased array antenna unit-level inner monitoring device comprises a microstrip patch antenna array,a coupling feeder line, an equal-power-dividing power divider, an absorption resistor, a microwave dielectric substrate and a radio frequency monitoring port. The microstrip patch antenna array unitcan adopt any patch form, and the array can adopt any array arrangement mode; the absorption resistor is connected to one end of the coupling feeder line, and the other end is used for performing cascading on the coupling feeder lines through the equal-power-dividing power divider; the length of the coupling feeder line can be adjusted according to actual design requirements, and the microstrip patch antenna array units of any numbers can be covered; and the microstrip patch antenna array, the coupling feeder line and the equal-power-division power divider are all printed on the single-layer microwave dielectric substrate. The microstrip patch antenna array and the monitoring module are integrated, so that the quantity of equipment and the number of cables can be reduced, and compared withthe conventional monitoring module which adopts a multilayer lamination or multilayer board penetration interconnection technology, the monitoring module of the invention is easy to machine and implement, and has the characteristics of being low in cost, high in reliability, high in integration level and convenient to manufacture and assemble.

The invention provides a single-layer broadband microstrip patch antenna array. The single-layer broadband microstrip patch antenna array comprises a plurality of array elements and folding gaps, the folding gap is located between two array elements, and the distance between the folding gap and the two adjacent array elements is equal; the folding gaps comprise transverse short gaps and longitudinal long gaps; and the end points of the transverse short gaps and the longitudinal long gaps are vertically crossed and circularly connected. By arranging the folding gap between the two array elements, the isolation between the adjacent array elements is improved, so that the influence of other array elements on each array element is reduced, the consistency of amplitude and phase response of each array element to incident electromagnetic waves is improved, and a positioning signal obtained based on the antenna array is more accurate.

The invention provides a parallel-fed microstrip patch antenna array, which comprises a first linear array and a second linear array, wherein the first linear array and the second linear array are connected in series through a main feeder line, and a second feeding point is arranged in the center of the main feeder line; the first linear array comprises a first microstrip line, eight microstrip patch units, eight sections of second microstrip lines and eight quarter impedance transformers, the eight microstrip patch units are distributed on the first microstrip line at equal intervals, the eight microstrip patch units are connected with the first microstrip line through the eight sections of second microstrip lines respectively, the center position of the first microstrip line is a first feeding point, and the eight quarter impedance transformers are uniformly distributed on the first microstrip line by taking the first feeding point as a symmetric center; and the second linear array and the first linear array are the same in structure. The parallel-fed microstrip patch antenna array provided by the invention is simple in design, few in patch units, small in antenna array size, relatively large in gain and relatively wide in 3dB bandwidth.

The invention provides a dual-polarization microstrip patch antenna array of artificial surface plasmon polariton feed. Comprising a dual-polarized microstrip patch antenna array and two groups of series feed networks based on artificial surface plasmon polaritons, the series feed network based on the artificial surface plasmon polaritons is composed of a linear artificial surface plasmon polariton transmission line located on the lower surface of the dielectric substrate, four segments of V-shaped artificial surface plasmon polariton transmission lines located on the upper surface of the dielectric substrate and metal columns used for connecting the transmission lines on the upper surface and the lower surface of the substrate and integrated in the substrate. A radiation patch of the dual-polarized microstrip patch antenna array is located on the upper surface of a dielectric substrate, and a metal floor is located on the lower surface of the dielectric substrate. According to the invention, a series feed network based on artificial surface plasmon polaritons is used for feeding a dual-polarized microstrip patch antenna array; the single-layer structure is compact in structure and easy to process and implement; the antenna has good impedance bandwidth and stable directional diagram and directional radiation characteristics.

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.

An embodiment of the present invention provides a multiband common-caliber antenna. The multiband common-caliber antenna of the present invention comprises a continuous transverse stub (CTS) antenna and a microstrip patch antenna. The CTS antenna comprises a planar waveguide feeding structure and multiple strip-shaped waveguide radiation units disposed on the planar waveguide feeding structure and disposed in a spaced manner along a first direction. A medium substrate is disposed between every two strip-shaped waveguide radiation units and on the upper surface of the planar waveguide feeding structure. Microstrip patch antenna arrays are disposed on the upper surface of the medium substrate. Each of the microstrip patch antenna arrays comprises multiple microstrip patch antenna units disposed in a spaced manner along a second direction perpendicular to the first direction. The number of the microstrip patch antenna arrays disposed on at least one of the medium substrate is not less than 2. The microstrip patch antenna arrays disposed on the medium substrates form the microstrip patch antenna. The embodiment of the present invention suppresses mutual coupling between surface waves of the microstrip patch antenna and the antenna.