16 results about "Dielectric waveguides" patented technology

An apparatus for connecting a monolithically integrated circuit to antenna elements of an antenna array including a decoupling unit for decoupling a signal emitted by the monolithically integrated circuit in the microwave range into a dielectric waveguide of a distribution network which includes dielectric waveguides and is designed to feed the decoupled signal into the antenna elements of the antenna array. Metal shields between adjacent dielectric waveguides of the distribution network shield the dielectric waveguides of the distribution network from one another.

A dielectric waveguide for propagating high-frequency waves is provided, the dielectric waveguide including a first section having a substantially uniform cross-section; and a second section having a larger cross-section than the first section. A method of manufacturing a dielectric waveguide is also provided. A dielectric waveguide assembly is also provided. A radar device is also provided, including the dielectric waveguide or a dielectric waveguide arrangement including the dielectric waveguide and a holder that at least partially surrounds the dielectric waveguide.

The invention discloses a Janus antenna array device and method for realizing one-way near-field coupling of a coupling surface. More flexible near-field directional excitation of light is realized. The device of the Janus antenna array for realizing the unidirectional near-field coupling of the coupling surface comprises a feed network structure and an outer coupler, the outer coupler comprises two dielectric waveguides which are parallel to each other, and the two dielectric waveguides are arranged at an interval to form an assembly space; the feed network structure comprises a feed network and a plurality of Janus antennas based on Janus dipoles, the Janus antennas are connected to the feed network, the Janus antennas are arranged in the assembly space in an array mode, each Janus antenna is provided with an electric dipole and a magnetic dipole, and the electric dipoles and the magnetic dipoles are perpendicular to each other and have phase differences. The magnetic dipoles correspond to the width direction of the assembly space, and the electric dipoles correspond to the length direction of the assembly space so as to excite quasi-TM waves in the dielectric waveguide.

Techniques pertaining to designs of a helical antenna as a coupler for dielectric waveguides for high data rate communications are described. A coupler to a waveguide cable is configured to allow the waveguide cable to connect to an integrated circuit (IC) chip in a direction normal to the IC chip. The coupler includes a helical antenna which includes a core, a helical structure in the core, and a cladding surrounding the core.

To provide a high frequency data system that uses dielectric waveguides to communicate electromagnetic waves carrying data signals.SOLUTION: A wave communication system includes an integrated circuit (102) and a multi-layer substrate (104). The multi-layer substrate (104) is electrically coupled to the integrated circuit (102). The multi-layer substrate (104) includes antenna structures (120TX1A, 120TX1B, 120TX2A, 120TX2B) configured to transmit circularly polarized waves in response to signals from the integrated circuit (102).SELECTED DRAWING: Figure 3

The invention relates to a device (1) for connecting a monolithic integrated circuit (2) to antenna elements (3) of an antenna array (4), comprising a coupling-out unit for coupling out a signal output by the monolithic integrated circuit (2) in the microwave range into a dielectric waveguide (5) of a distribution network (6) consisting of dielectric waveguides, the invention relates to a distribution network (6) which is designed to feed out-coupled signals into antenna elements (3) of the antenna array (4), a metal shielding structure between adjacent dielectric waveguides (5) of the distribution network (6) shielding the dielectric waveguides (5) of the distribution network (6) from each other. The invention also relates to an antenna array, a radar device and a vehicle.

The utility model relates to a photon interconnection wafer and an electronic / photon package. A photonic interconnect wafer may include a substrate, a dielectric waveguide including a core portion and a cladding portion and formed over the substrate, a first photonic coupler formed at a first end of the dielectric waveguide, and a second photonic coupler formed at a second end of the dielectric waveguide. The dielectric waveguide may include a planar geometry within the cladding portion such that a surface of the dielectric waveguide is parallel to the first surface of the photonic interconnect wafer. The first photonic coupler and the second photonic coupler may each be configured to couple a photonic signal into and out of the photonic interconnect wafer such that a photonic signal channel connects the first photonic coupler, the dielectric waveguide, and the second photonic coupler. The photonic interconnect wafer may further couple photonic signals into and out of the first dielectric window and the second dielectric window.

A data transmission apparatus is provided which has a first dielectric waveguide with a first coupling section and a second dielectric waveguide which can be moved in a direction of movement opposite the first coupling section and has a first variable distance to the first coupling section. Furthermore, the data transmission apparatus has a third dielectric waveguide which has a second coupling section and a second variable distance to the second dielectric waveguide. The first dielectric waveguide is fixed with respect to the third dielectric waveguide. The first coupling section and the second coupling section are of equal length in the direction of movement and lie opposite one another perpendicular to the direction of movement.

Techniques pertaining to designs of a dielectric waveguide (DWG) cable for high data rate communications are described. A DWG cable is configured to carry multiple data streams to support a high data rate communication. The DWG cable includes a cladding material and a plurality of cores with each core of the plurality of cores surrounded by the cladding material.

Systems, devices, and methods for enhanced tissue imaging and biochemical detection using near-infrared (NIR) illumination in conjunction with resonant structures, such as whispering gallery mode (WGM) resonators and dielectric waveguides are proposed that operate in either transmission mode—where NIR light passes through a target sample—or reflection mode—where reflected NIR signals are recoupled into the sensing structure. These configurations support low-cost, flexible, real-time, and high-sensitivity analysis across a broad spectrum of biological and non-biological specimens, thereby enabling applications in tissue diagnostics, immunoassay-based detection, and material characterization, including deployment in point-of-care and resource-limited environments.

In an example embodiment, a system includes a chain of nodes coupled in series, the chain of nodes including a central processing node (CPN) and one or more radio communication nodes (RCNs). The CPN is coupled to a first RCN in the chain via a dielectric waveguide (DWG) link, and any other RCNs in the chain are connected in series from the first RCN in succession via other DWG links. The CPN generates outgoing radio carrier signals that propagate through the waveguide in a downstream direction of the chain for over-the-air (OTA) by a target RCN of the RCNs, while received radio carrier signals via OTA reception by each of the RCNs are received as incoming radio signals that propagate through the waveguide in an upstream direction of the chain for processing by the CPN. Advantages of the contemplated system include greatly simplified implementation of the RCNs with lower cost and power consumption. Furthermore, strategic placement of failover CPNs and DWG links provide for continued operation in the face of CPN or DWG link failure.

The application discloses a device and method for realizing a near-field dual-polarization perfect Janus dipole, and relates to the technical field of dipole near-field coupling and excitation. The device for realization comprises a dual-polarization perfect Janus dipole and two parallelly placed dielectric waveguides. The method for realization comprises designing dielectric waveguide and dipole parameters, constructing a rectangular coordinate system, placing two parallel dielectric waveguides in an xy plane, and placing the dipole at a middle position of the parallel dielectric waveguides. P-polarization and s-polarization waves excited by the dipole are coupled into the dielectric waveguides to excite guided waves. An electromagnetic field on a surface of the dielectric waveguide is detected through a detection device, and near-field coupling characteristics of the dual-polarization perfect dipole are analyzed based on extracted field distribution data. The application provides a new approach for the development of polarization multiplexing photonic devices, quantum routing and on-chip signal processing technology.

The invention discloses a dielectric waveguide bending loss suppressor and electronic equipment, and relates to the technical field of radio frequency. The loss suppressor comprises a first curved shielding piece and a second curved shielding piece arranged opposite to the first curved shielding piece. And a plurality of waveguide loss suppression pieces are arranged between the first substrate and the second substrate, and are arranged at intervals along the first direction to form a multi-row structure. The first curve-shaped shielding piece, the second curve-shaped shielding piece and the waveguide loss suppression pieces jointly define a suppression cavity, and the suppression cavity is used for carrying out effective loss suppression on input electromagnetic waves and then outputting the electromagnetic waves. The input waveguide is connected to one end of each of the two shielding pieces, is communicated with the suppression cavity, and is used for guiding external electromagnetic waves into the suppression cavity; and the output waveguide is connected to the other ends of the two shielding pieces, is also communicated with the suppression cavity, and is used for leading out the electromagnetic waves subjected to suppression processing. The technical scheme provided by the invention can solve the problems of large direct bending loss, narrow bandwidth and the like of the existing dielectric waveguide.

The invention provides a clip antenna system based on orthogonal frequency division multiplexing, which relates to the technical field of flexible antenna systems, and has the technical key points that the clip antenna system comprises two single antenna users and a multi-dielectric waveguide structure consisting of two parallel dielectric waveguides, each dielectric waveguide independently serves the single antenna users U1 and U2, and each dielectric waveguide serves the single antenna users U1 and U2; clip antennas A1 and A2 are used as radiating elements to activate dielectric particles on a dielectric waveguide, and are dynamically deployed according to a user position: A1, a service near-end user U1 is placed in a coordinate (u, 0, H); a2, a service far-end user U2 is arranged in a coordinate (u + L, 0, H); the system further comprises an OFDM sub-channel division module which is used for dividing and realizing multi-user parallel transmission. According to the method, the condition that power loss exists or does not exist in the dielectric waveguide is considered, the considered system is comprehensively analyzed, the optimal power distribution and bandwidth division scheme is given, and the closed expressions of the optimal power distribution and the optimal bandwidth division scheme are respectively deduced by taking system performance maximization as a target.

The invention relates to a dielectric waveguide arrangement for a radar device, comprising a dielectric waveguide and a carrier which at least partially surrounds the dielectric waveguide, the carrier having at least one recess or projection at an end face thereof.

The device includes three elements fabricated on a common substrate. The first element includes an active waveguide structure having at least three sub-layers supporting a first optical mode. The second element has a passive waveguide structure supporting a second optical mode, and the third element, which is butt-coupled to the first element, has an intermediate waveguide structure supporting an intermediate optical mode. One of the sub-layers in the active waveguide structure includes an n-type contact layer, another sub-layer includes a p-type contact layer, and a third sub-layer includes an active region. Tapered waveguide structures in at least one of the second and third elements facilitate efficient adiabatic conversion between the second optical mode and the intermediate optical mode. No adiabatic conversion occurs between the intermediate optical mode and the first optical mode. Mutual alignment of the three elements is defined by using photolithographic alignment marks that facilitate precise alignment between layers formed when fabricating the elements.