Abstract: An antenna, a manufacturing method of the antenna, and an antenna system are provided. The antenna includes a radiation unit, configured to receive a microwave signal from outside and/or send a microwave signal to the outside; an active amplifying unit, configured to receive a plurality of microwave signals inputted by the radiation unit and amplify the plurality of microwave signals; a phase shifting unit, configured to receive a plurality of amplified microwave signals outputted by the active amplifying unit and perform phase adjustment on the plurality of amplified microwave signals; and a power division and transmission unit, configured to combine a plurality of phase-adjusted microwave signals outputted by the phase shifting unit into a microwave signal and output the microwave signal.

Abstract: A navigation and positioning system for an underwater glider includes a micro-electro-mechanical system inertial measurement unit, a global positioning system receiving module, a triaxial magnetometer, a Doppler velocimeter, and an integrated navigation hardware processing system. If a navigation and positioning error is too large, the underwater glider stops working in real time and switches from the underwater working state to the up floating error correction state; and when velocity and location errors of a GPS/INS integrated navigation system are smaller than specified thresholds, the underwater glider switches from the up floating error correction state to the underwater working state and continues to work. An H? Kalman filter algorithm based on an adaptive multiple fading factor is established to ensure robustness and adaptability of navigation and positioning of a glider.

Abstract: A dual-filter-based transfer alignment method under dynamic deformation. A dynamic deformation angle generated under dynamic deformation and a coupling angle between dynamic deformation and body motion will reduce the accuracy of transfer alignment; and a transfer alignment filter is divided into two parts, the first part estimates a bending deformation angle and the coupling angle, and uses an attitude matching method, and the second part estimates a dynamic lever arm, and uses a “speed plus angular speed” matching method.

Abstract: The present disclosure provides a radio frequency duplexer circuit and a radio frequency substrate. The radio frequency duplexer circuit includes a first terminal, a second terminal, a third terminal, a low-pass filter, and a high-pass filter. The low-pass filter includes N first filter sub-circuits coupled in series and a first tuning sub-circuit. Among the N first filter sub-circuits coupled in series, a first end of a 1st first filter sub-circuit is coupled to the first terminal, and a second end of a Nth first filter sub-circuit is coupled to the second terminal. The high-pass filter includes M second filter sub-circuits coupled in series and a second tuning sub-circuit. Among the M second filter sub-circuits coupled in series, a first end of a 1st second filter sub-circuit is coupled to the first terminal, and a second end of a Mth second filter sub-circuit is coupled to the third terminal.

Abstract: The present disclosure provides a phase shifter and an antenna, and relates to the field of communication technology. The phase shifter provided by the embodiment of the present disclosure is divided into a first feeding region, a second feeding region and a phase-shift region. The phase shifter includes: a first substrate and a second substrate provided opposite to each other, a dielectric layer provided between the first substrate and the second substrate, and a first feeding structure and a second feeding structure. The first feeding structure is electrically coupled to one end of the signal line, and the second feeding structure is electrically coupled to the other end of the signal line. The first feeding structure is located in the first feeding region; and the second feeding structure is located in the second feeding region. Recesses are formed in the first base substrate and/or in the second base substrate.

Abstract: The present disclosure provides a phase shifter and a manufacturing method thereof, and an antenna. The phase shifter includes a first substrate and a second substrate, and a medium layer arranged between them. The first substrate includes a reference electrode arranged on a side of a first base substrate close to the medium layer, and the second substrate includes a delay line arranged on a side of a second base substrate close to the medium layer. An orthographic projection on the first substrate of the delay line at least partially overlaps with that of the reference electrode. A line spacing and/or a line width of the delay line is enable to make a cell thickness between the first substrate and the second substrate be 20 ?m-75 ?m.

Abstract: The present disclosure provides a phase shifter and a manufacturing method thereof, and an antenna. The phase shifter includes a first substrate including a reference electrode, and a second substrate including a delay line and a bias line. An orthographic projection of the bias line on the first substrate and that of the delay line, at least partially overlap with that of the reference electrode respectively. The orthographic projection of the bias line on the first substrate does not overlap with that of the delay line. The delay line is used for transmitting a microwave signal and defining a microwave transmission region. When electrical signals are applied to the reference electrode, the delay line and the bias line, electric field areas formed respectively between the reference electrode and the delay line, and between the reference electrode and the bias line, cover the microwave transmission region.

Abstract: The present disclosure provides a phase shifter and antenna, The phase shifter includes a first substrate, a second substrate and a first dielectric layer between the first substrate and the second substrate. The first substrate includes: a first base substrate and a transmission line on a side of the first base substrate proximal to the first dielectric layer. The second substrate includes: a second base substrate and a reference electrode on a side of the second substrate proximal to the first dielectric layer. An orthographic projection of the reference electrode on the first base substrate at least partially overlaps an orthographic projection of the transmission line on the first base substrate. The reference electrode is provided with a first opening therein, and a length of the first opening along the first direction is not less than a line width of the transmission line.

Abstract: The present disclosure provides a substrate integrated with a passive device and a method for manufacturing the same, and belongs to the technical field of communications. The substrate integrated with a passive device according to the present disclosure includes a dielectric layer provided with a first connection via; and the passive device at least including an inductor. The inductor includes a plurality of first sub-structures and a plurality of second sub-structures respectively disposed on two opposite sides of the dielectric layer, and two adjacent first sub-structures of the plurality of first sub-structures are short-circuited by a corresponding one of the plurality of second sub-structures through the first connection via penetrating through the dielectric layer, so as to form an induction coil of the inductor.

Abstract: A five-membered heterocyclic oxocarboxylic acid compound and the medical use thereof are described. Specifically, provided are a compound as represented by formula (I) and a pharmaceutically acceptable salt, prodrug, hydrate, solvate or crystal form thereof, and also a method for preparing the compound, a pharmaceutical composition containing the compound, and the medical use thereof as a secretion regulator of type I interferon, especially as a STING agonist, and the preparation of a drug for preventing and/or treating diseases related to type I interferon.

Abstract: An antenna unit includes a dielectric substrate, an antenna layer, a ground layer, and an additional structure; the antenna layer is disposed on a first surface of the dielectric substrate; the ground layer is disposed on a second surface of the dielectric substrate; wherein the first surface and the second surface are opposite surfaces of the dielectric substrate; the additional structure includes any combination of the following structures: a floor meander structure disposed on the second surface and in a same layer as the ground layer to improve isolation of an antenna, a patch meander structure disposed on the first surface and in a same layer as the antenna layer to expand a bandwidth of an antenna, and a branch structure disposed on the second surface and in a same layer as the ground layer to improve isolation of an antenna and expand a bandwidth of the antenna.

Abstract: Provided are a heterocyclic amide compound of general formula (I), a pharmaceutically acceptable salt thereof and a preparation method therefor, and the use of the compound in the preparation of a drug for treating diseases related to the activity of STING, in the preparation of an immunologic adjuvant, and in the preparation of a drug for activating STING.

Abstract: The present disclosure provides a radio frequency duplexer circuit and a radio frequency substrate. The radio frequency duplexer circuit includes a first terminal, a second terminal, a third terminal, a low-pass filter, and a high-pass filter. The low-pass filter includes N first filter sub-circuits coupled in series and a first tuning sub-circuit. Among the N first filter sub-circuits coupled in series, a first end of a 1st first filter sub-circuit is coupled to the first terminal, and a second end of a Nth first filter sub-circuit is coupled to the second terminal. The high-pass filter includes M second filter sub-circuits coupled in series and a second tuning sub-circuit. Among the M second filter sub-circuits coupled in series, a first end of a 1st second filter sub-circuit is coupled to the first terminal, and a second end of a Mth second filter sub-circuit is coupled to the third terminal.

Abstract: The disclosure provides a liquid crystal antenna including: a first substrate; a second substrate facing the first substrate; a third substrate facing the second substrate such that the second substrate is between the first substrate and the third substrate; a liquid crystal layer between the first substrate and the second substrate; a transmission line on a surface of the first substrate adjacent to the liquid crystal layer; a ground electrode on a surface of the second substrate adjacent to the liquid crystal layer; a feeder line and a radiation patch both on a surface of the third substrate, wherein the transmission line and the ground electrode form a signal transmission circuit, and the transmission line and the liquid crystal layer form a phase shifter. In addition, the disclosure also relates to a method for manufacturing the liquid crystal antenna and an electronic device including the liquid crystal antenna.

Abstract: The present disclosure provides a phase shifter and a manufacturing method thereof, and an antenna. The phase shifter includes a first substrate and a second substrate, and a medium layer arranged between them. The first substrate includes a reference electrode arranged on a side of a first base substrate close to the medium layer, and the second substrate includes a delay line arranged on a side of a second base substrate close to the medium layer. An orthographic projection on the first substrate of the delay line at least partially overlaps with that of the reference electrode. A line spacing and/or a line width of the delay line is enable to make a cell thickness between the first substrate and the second substrate be 20 ?m-75 ?m.

Abstract: The present disclosure provides a phase shifter and a manufacturing method thereof, and an antenna. The phase shifter includes a first substrate including a reference electrode, and a second substrate including a delay line and a bias line. An orthographic projection of the bias line on the first substrate and that of the delay line, at least partially overlap with that of the reference electrode respectively. The orthographic projection of the bias line on the first substrate does not overlap with that of the delay line. The delay line is used for transmitting a microwave signal and defining a microwave transmission region. When electrical signals are applied to the reference electrode, the delay line and the bias line, electric field areas formed respectively between the reference electrode and the delay line, and between the reference electrode and the bias line, cover the microwave transmission region.

Abstract: An antenna, a manufacturing method of the antenna, and an antenna system are provided. The antenna includes a radiation unit, configured to receive a microwave signal from outside and/or send a microwave signal to the outside; an active amplifying unit, configured to receive a plurality of microwave signals inputted by the radiation unit and amplify the plurality of microwave signals; a phase shifting unit, configured to receive a plurality of amplified microwave signals outputted by the active amplifying unit and perform phase adjustment on the plurality of amplified microwave signals; and a power division and transmission unit, configured to combine a plurality of phase-adjusted microwave signals outputted by the phase shifting unit into a microwave signal and output the microwave signal.

Abstract: A fluorine-containing substituted benzothiophene compound and a pharmaceutical composition and an application thereof are described. The compound has the structure as shown in formula (I), in which the definitions of each group and substituent are as described in the description. A preparation method of the compound and an anti-tumor application thereof are also described.

Abstract: An antenna unit includes a dielectric substrate, an antenna layer, a ground layer, and an additional structure; the antenna layer is disposed on a first surface of the dielectric substrate; the ground layer is disposed on a second surface of the dielectric substrate; wherein the first surface and the second surface are opposite surfaces of the dielectric substrate; the additional structure includes any combination of the following structures: a floor meander structure disposed on the second surface and in a same layer as the ground layer to improve isolation of an antenna, a patch meander structure disposed on the first surface and in a same layer as the antenna layer to expand a bandwidth of an antenna, and a branch structure disposed on the second surface and in a same layer as the ground layer to improve isolation of an antenna and expand a bandwidth of the antenna.

Abstract: The present invention provides an inversion calculation method of coal-bed gas parameters of fast test while-drilling. The technical solution is that an inversion calculation method of coal-bed gas parameters of fast test while-drilling includes: during drilling in a coal bed, testing a gas flow and a gas concentration of an orifice in real time while-drilling, calculating drilling gas discharge amounts of the orifice, inversely calculating a coal-bed gas pressure at a drill bit based on borehole and coal-bed permeability parameters, and calculating a coal-bed gas content according to a gas content and gas pressure relational expression. The present invention has the beneficial effects that the present invention does not occupy the drilling and drill rod replacement time, is accurate, convenient, real-time and fast, and can test and calculate the coal-bed gas parameters of each section along the whole borehole length.