36results about How to "Mitigate problems caused by mutual interference" patented technology

The invention relates to a metamaterial and a metamaterial antenna. The metamaterial is relatively arranged in the electromagnetic wave propagation direction of a radiation source; an angle between a link line of the radiation source and one point on a first surface of the metamaterial and a straight line which is vertical to the metamaterial is set to be theta, the angle theta exclusively corresponds to one curve surface inside the metamaterial, a refractive index on each position of the curve surface which exclusively corresponds to the angle theta is identical, and a generatrix of the curve surface is an elliptic arc; the refractive index of the metamaterial is gradually reduced along the increase of the angle theta; and electromagnetic waves are transmitted in parallel on the top surface of each ring body after passing through the metamaterial. The hopping of the refractive indexes of the metamateiral is designed into a curve surface shape, so that the refraction, diffraction and reflection reaction on each hopping position can be greatly reduced, the interference problem can be alleviated, and the metamaterial and the metamaterial antenna have more excellent performances.

The invention relates to an antenna. The antenna comprises a radiation source and a collecting unit. The collecting unit has the function of collecting electromagnetic wave and is used for converting electromagnetic wave emitted by the radiation source into plane wave. The collecting unit comprises a functional dielectric plate and an impedance matching element. The impedance matching element is disposed on a first lateral surface of the functional dielectric plate and is tightly attached to the first lateral surface of the functional dielectric plate. The impedance matching element comprises a plurality of first impedance matching layers. Refractive index distribution for each impedance matching layer is indicated in such way that the functional dielectric plate includes a plurality of concentric rings which have lateral curved surfaces and attach with one another. The bottom radius of each ring is smaller than the top radius. The refractive index distribution of the impedance matching layers is designed, so that reflection interference and loss are decreased. Jumps of the refractive index of the functional dielectric layer are curved, so that refraction, diffraction and reflection effects of the jumps are reduced greatly. The problems caused by mutual interference are relieved, and the antenna has better properties.

The invention relates to a convergence element which comprises a functional dielectric slab and an impedance matching element, wherein the impedance matching element is arranged on a first lateral surface of the functional dielectric slab and closely attached to the first lateral surface of the functional dielectric slab; the impedance matching element comprises a plurality of first impedance matching layers, and the refractive index distribution of each impedance matching layer is represented in the specification; the functional dielectric slab is divided into a plurality concentric annular ring bodies, of which the lateral surfaces are curved surfaces and closely attached to each other; the radius of the bottom surface of each annular ring body is less than that of the top surface; and given that the included angle between the connecting line between the radiation source and one point on the bottom surface of the i annular ring body and the straight line perpendicular to the functional dielectric slab is theta, the refractive index of each annular ring body gradually deceases as the included angle theta increases. The refractive index distribution of the impedance matching layers is designed to reduce the reflective jamming and loss; and the jump of refractive index of the functional dielectric layer is designed as a curved surface, thereby greatly reducing the refraction, diffraction and reflection effects at the jump and relieving the problem of mutual interference, so that the convergence element has more excellent properties.

The invention relates to an artificial composite material and an artificial composite material antenna. The artificial composite material is oppositely arranged in the electromagnetic wave propagation direction of a radiation source, wherein the included angle between the line connecting the radiation source and a point on a first surface of the artificial composite material and a straight line vertical to the artificial composite material is supposed to be theta; the included angle theta only corresponds to a curved surface in the artificial composite material; the refractive index of each part on the curved surface is the same; the generatrix of the curved surface is an elliptic arc; the refractive index of the artificial composite material gradually decreases along with increase of the included angle theta; and the electromagnetic waves are jetted from the top surface of each torus in parallel after passing through the artificial composite material. The artificial composite material and the artificial composite material antenna have the following beneficial effects that by designing the jump of the refractive index of the artificial composite material into a curved surface, the refraction, diffraction and reflection effects in the jump positions are greatly reduced and the problems caused by mutual interference are reduced, so that the artificial composite material and the artificial composite material antenna have more excellent performances.

The invention relates to an artificial composite material and an artificial composite material antenna. The artificial composite material is characterized in that the artificial composite material is divided into a plurality of regions; electromagnetic waves enter a first surface of the artificial composite material and exit from a second surface opposite to the first surface; the intersection part of an i region and the first surface is the bottom surface of the i region; the intersection part of the i region and the second surface is the top surface of the i region; supposed the included angle between a line connecting a radiation source with a point on the bottom surface of the i region and a straight line vertical to the artificial composite material is theta, and the included angle theta uniquely corresponds to a curved surface in the i region; the set of the points with the same included angle theta on the bottom surface of the i region forms the boundary of the curved surface to which the included angle theta uniquely corresponds; the refractive indexes of all parts on the curved surface to which the included angle theta uniquely corresponds are the same; and the refractive index of each region gradually decreases with the increase of the included angle theta. The artificial composite material and the artificial composite material antenna have the following beneficial effects: the jump of the refractive indexes of the artificial composite material is designed into the shape of a curved surface, thus reducing the refraction, diffraction and reflection effects in jump positions.

The invention relates to a high-gain antenna housing and an antenna system. The high-gain antenna housing comprises a metamaterial panel, wherein the metamaterial panel is divided into a plurality of areas; an electromagnetic wave enters the first surface of the metamaterial panel and is emitted from the second surface opposite to the first surface; an intersection part of the i-th area and the first surface is the bottom surface of the i-th area; the intersection part of the i-th area and the second surface is the top surface of the i-th area; an included angle between a connection line of a radiation source and a point on the bottom surface of the i-th area and the connection line vertical to the metamaterial panel is set to be theta; the included angle theta solely corresponds to a curved surface inside the i-th area; a set of points with the same included angle theta on the bottom surface of the i-th area forms a boundary of the curved surface solely corresponding to the included angle theta; the refractive index of each part of the curved surface solely corresponding to the included angle theta is equal; a bus of the curved surface is in a parabola arc, and the refractive index of each area is gradually reduced along with the increase of the included angle theta. The antenna housing disclosed by the invention facilitates the receiving antenna to receive signals as much as possible and improves the signal strength and gain.

The invention relates to a high-gain antenna housing and an antenna system. The high-gain antenna housing is arranged on the antenna and comprises a metamaterial panel, wherein a radiation source of the antenna is arranged oppositely to the metamaterial panel; a connection line between an equivalent point of the radiation source of the antenna and the centre of the metamaterial panel is vertical to the metamaterial panel; the metamaterial panel is divided into a plurality of tightly-attached concentric ring bodies of which the side surfaces are curved surfaces; the radius of the bottom surface of each ring body is smaller than that of the top surface; an electromagnetic wave is emitted in parallel from the top surface of each ring body after passing through the metamaterial panel; an included angle between the connection line of the radiation source and a point on the bottom surface of the i-th ring body and the connection line vertical to the metamaterial panel is set to be theta; the included angle theta solely corresponds to the curved surface inside the i-th ring body; and the refractive index of each part of the curved surface solely corresponding to the included angle theta is equal, and the refractive index of each ring body is gradually reduced along with he increase of the included angle theta. The antenna housing disclosed by the invention facilitates the receiving antenna to receive signals as much as possible and improves the signal strength and gain.

The invention relates to a metamaterial and a metamaterial antenna. The metamaterial antenna comprises a circular ring body with curved surfaces as side surfaces, wherein the radius of the bottom surface of the circular ring body is smaller than that of the top surface; an included angle between a connecting line of a radiation source and one point on the bottom surface of the circular ring body, and a straight line of the radiation source perpendicular to the metamaterial is set to be Theta; the included angle Theta only corresponds to one curved surface inside the circular ring body; the refractive indexes of all the parts on the curved surface only corresponding to the included angle Theta are the same; and the refractive index of the circular ring body decreases gradually as the included angle Theta becomes larger. According to the invention, the jump of the refractive index of the metamaterial is designed as a shape of a curved surface, so that the effects of refraction, diffraction and reflection at jumping parts are reduced greatly, and problems caused by mutual interference are lightened. Therefore, the metamaterial and the metamaterial antenna have more excellent performance.

The invention relates to an artificial composite material and an artificial composite material antenna. The artificial composite material is characterized in that the artificial composite material is divided into a plurality of regions; plane electromagnetic waves enter a first surface of the artificial composite material and exit from a second surface opposite to the first surface in the form of spherical waves; the electromagnetic waves exiting extend reversely and intersect on a virtual focus of the artificial composite material; the intersection part of an i region and the first surface is the bottom surface; the intersection part of the i region and the second surface is the top surface; supposed the included angle between a line connecting the virtual focus with a point on the top surface of the i region and a straight line vertical to the artificial composite material is theta, and theta uniquely corresponds to a curved surface in the i region; the set of the points with the same theta on the top surface of the i region forms the boundary of the curved surface to which theta uniquely corresponds; the refractive indexes of all parts on the curved surface to which theta uniquely corresponds are the same; and the refractive index of each region gradually decreases with the increase of the included angle theta. The artificial composite material and the artificial composite material antenna have the following beneficial effects: the jump of the refractive indexes is designed into the shape of a curved surface, thus reducing the refraction, diffraction and reflection effects in jump positions.

The invention relates to a manual composite material and a manual composite material antenna. The manual composite material is divided into a plurality of areas; an electromagnetic wave emits on a first surface of the manual composite material and exits out from a second surface (opposite to the first surface) of the manual composite material; an intersection part of an ith area and the first surface serves as a bottom surface of the ith area; an intersection part of the ith area and the second surface serves as a top surface of the ith area; an included angle between a connection wire (between a radiation source and one point on the bottom surface of the ith area) and a straight line vertical with the manual composite material is set to be theta; the included angle theta only corresponds to a curve surface in the ith area; a set of points with the same included angle theta on the bottom surface of the ith area form a boundary of the curve surface only corresponding to the inclined angle; the refractive indexes of positions on the curve surface only corresponding to the included angle theta are same; a generatrix of the curve surface is an elliptic arc; and the refractive indexes of the areas can be gradually reduced along with the increasing of the included angle theta. The hopping of the refractive index of the manual composite material provided by the invention is designed to be curved, so that refraction, diffraction and reflection effects at the hopping position can be reduced.

The invention relates to a lens antenna which comprises a lens and a radiation source arranged on a lens focus. The lens is divided into a plurality of concentric toruses with lateral surfaces as curved surfaces, and the concentric toruses are attached to one another. The bottom face radius of each torus is smaller than the top face radius. Electromagnetic wave passes through the lens and is irradiated out parallelly on the top face of each torus. Suppose that an included angle between a connecting line of the radiation source and a point on the bottom face of the ith torus and a straight line perpendicular to the lens is theta, the included angle theta corresponds to a unique curved surface in the ith torus, and refractive indexes of all positions on the unique curved surface corresponding to the included angle theta are identical. The refractive index of each torus is gradually reduced along with increasing of the included angle theta. Hopping of the refractive indexes of the lens is designed to be a curved surface, refraction, diffraction and reflection effects at hopping positions are greatly reduced, a problem caused by mutual interference is solved, and the lens antenna has better performance.

The invention relates to an artificial composite material and an artificial composite material antenna. The artificial composite material is characterized in that the artificial composite material is divided into a plurality of regions; electromagnetic waves enter a first surface of the artificial composite material and exit from a second surface opposite to the first surface; the intersection part of an i region and the first surface is the bottom surface of the i region; the intersection part of the i region and the second surface is the top surface of the i region; supposed the included angle between a line connecting a radiation source with a point on the bottom surface of the i region and a straight line vertical to the artificial composite material is theta, and the included angle theta uniquely corresponds to a curved surface in the i region; the set of the points with the same included angle theta on the bottom surface of the i region forms the boundary of the curved surface to which the included angle theta uniquely corresponds; the refractive indexes of all parts on the curved surface to which the included angle theta uniquely corresponds are the same; the generatrix of the curved surface is a parabolic arc; and the refractive index of each region gradually decreases with the increase of the included angle theta. The artificial composite material and the artificial composite material antenna have the following beneficial effects: the jump of the refractive indexes of the artificial composite material is designed into the shape of a curved surface, thus reducing the refraction, diffraction and reflection effects in jump positions.