3 results about "Spiral resonator" patented technology

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 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.