10 results about "Spiral resonator" patented technology

This application belongs to the field of microwave engineering, specifically relating to a dual-polarization, reconfigurable, stealthy, and transparent integrated frequency selective surface and radome. The frequency selective surface consists of a three-layer structure: an adjustable FSS layer, an adjustable impedance layer, and a non-adjustable impedance layer. A PIN diode is loaded in the adjustable layer, while a resistor is loaded in the impedance layer. A spiral resonator and an interdigital capacitor resonator are used in the non-adjustable and adjustable impedance layers, respectively. Metal structures arranged in the x and y directions are placed on both sides of the adjustable impedance layer to achieve dual polarization. The adjustable FSS layer forms a transmission window and has reconfigurable functionality. Utilizing the PIN diode and multi-layer structure design, the switching between transmission and absorption functions in the X-band is achieved, realizing a stealthy and transparent integrated design. Transmission and absorption modes can be switched in the X-band, achieving integrated stealth functionality. The radome, through this frequency selective surface, possesses both transmission and absorption capabilities and reconfigurable characteristics.

The utility model provides a coupling device applied to a spiral resonator. The coupling device comprises a fixed adapter, a signal coupling module and a main coil arranged in a resonator main body, a position adjusting structure, a tuning circuit board and a coupling coil are arranged on the signal coupling module, and the coupling coil is connected below the tuning circuit board; the signal coupling module is connected to the resonator main body through the fixed adapter, and the position of the signal coupling module relative to the resonator main body can be adjusted by adjusting the cooperation of the position adjusting structure and the fixed adapter. According to the utility model, the longitudinal depth of the coupling coil can be continuously adjusted.

The application provides a spiral resonator used in a vacuum cavity, which specifically comprises a mounting base, a shell, a power mechanism, a mutual inductance adjusting mechanism, a main coil and a coupling coil, wherein the mounting base is installed in a vacuum cavity of an ion trap system, the shell is fixed on the mounting base and used for fixing the spiral resonator, the mutual inductance adjusting mechanism, the main coil and the coupling coil are arranged in the interior of the shell, the power mechanism is arranged outside the vacuum cavity, and the power output end of the power mechanism penetrates into the interior of the vacuum cavity and is used for driving the mutual inductance adjusting mechanism to adjust the relative distance between the main coil and the coupling coil, so that the output impedance of the spiral resonator is changed. The distance between the main coil and the coupling coil is directly adjusted in the vacuum cavity, thereby avoiding radio frequency loss and Q factor reduction.

The present invention discloses a spiral resonator for ion trap experiments, comprising an input connector, an antenna, a coil post, at least one spiral coil, and an output connector equal in number to the number of spiral coils. The input connector is connected to the antenna. The outer surface of the coil post is provided with spiral grooves equal in number to the number of spiral coils. Each spiral coil is correspondingly disposed within a corresponding spiral groove and connected to a corresponding output connector. The antenna is coaxially arranged with the spiral grooves on the coil post. The spiral resonator for ion trap experiments of the present invention can reduce coil deformation and positional deviation, thereby ensuring coaxiality.

The present application relates to microwave component technology field, specifically to a kind of novel high-performance spiral filter, including filter shell, filter shell inside is air cavity, multiple tuning screws are arranged in parallel and spaced in filter shell, the head of multiple tuning screws is located at the outside of filter shell, the stem of multiple tuning screws is all inserted into air cavity and is correspondingly sleeved with multiple spiral resonators, one end of multiple spiral resonators is open circuit, the other end is all grounded, the rotation direction of a part of spiral resonators is positive, the rotation direction of another part of spiral resonators is reverse, the left and right end faces of filter shell are respectively provided with input end head and output end head, and the inner end of input end head and output end head is respectively connected with corresponding spiral resonator.This application greatly improves the steepness of filter low-end rejection, and makes the high and low end rejection of filter substantially symmetrical.

An apparatus of a spiral resonator material detector, the apparatus comprising: a planar dielectric substrate; a microstrip transmission line on a first surface of the planar dielectric substrate; a spiral resonator on the first surface of the planar dielectric substrate electrically connected to the microstrip transmission line; and a ground conductor on a second surface of the planar dielectric substrate beneath the microstrip transmission line, wherein the planar dielectric substrate insulates the ground conductor from the microstrip transmission line and the spiral resonator.

The invention discloses a high-speed tuning narrow linewidth on-chip external cavity laser and a laser radar. The antenna comprises a gain chip and an outer cavity chip, and the outer cavity chip comprises an end face coupler, a phase shifter, a wavelength selector, a directional coupler and a spiral resonator. Wherein the gain chip is in end-face optical coupling connection with one end of the end-face coupler of the outer cavity chip, the other end of the end-face coupler is connected with one end of the directional coupler after sequentially passing through the phase shifter and the wavelength selector, the directional coupler is in coupling connection with the spiral resonator, and the other end of the directional coupler is connected with the output waveguide. And the laser is output through the output waveguide. According to the invention, high-speed tuning narrow linewidth laser output can be realized, so that the resolution and the detection precision of the laser radar are improved.

The utility model discloses a kind of narrow line width on-chip external cavity laser of high-speed tuning and laser radar.It contains gain chip and external cavity chip, external cavity chip includes end face coupler, phase shifter, wavelength selector, directional coupler and spiral resonator;Wherein gain chip and the end face coupler one end of external cavity chip are connected with end face optical coupling, end face coupler other end is connected with directional coupler one end in sequence after phase shifter, wavelength selector, directional coupler and spiral resonator are coupled connection, directional coupler other end connects output waveguide, and laser is exported by output waveguide.The utility model can realize the narrow line width laser output of high-speed tuning, to improve the resolution and detection accuracy of laser radar.

The application relates to a combined patch antenna sensor and a sensing system, the sensor comprising component one, component two and component three, component one comprising a substrate, a receiving broadband antenna, a transmitting broadband antenna, a microstrip line, a spiral resonator left radiation patch, a microstrip feed line and an RFID chip, component two comprising a mobile substrate and a spiral resonator right radiation patch below the mobile substrate, and component three comprising a connecting line and a connecting plate, the polarization directions of the receiving broadband antenna and the transmitting broadband antenna being crossed. Compared with the prior art, the polarization directions of the receiving broadband antenna and the transmitting broadband antenna in the sensor are crossed, so that the interference of environmental reflection on the backscattering signal of the antenna sensor is effectively avoided.

The application provides a spiral resonator convenient to adjust coupling, which comprises a resonator main body, a fixed adapter and a signal coupling module; the resonator main body is internally provided with a main coil; the signal coupling module is provided with a position adjusting structure, a tuning circuit board and a coupling coil; the signal coupling module is connected to the resonator main body through the fixed adapter; the position of the signal coupling module relative to the resonator main body can be adjusted through the cooperation of the position adjusting structure and the fixed adapter, so as to adjust the relative position between the coupling coil and the main coil, and change the output impedance of the spiral resonator; the tuning circuit board is provided with an adjustable capacitor or inductor, and the adjustable capacitor or inductor is connected in series or parallel with the coupling coil to change the output impedance of the spiral resonator. The longitudinal depth of the coupling coil can be continuously adjusted, and the defect that the original resonator has relatively single function is improved.