Abstract: An antenna structure includes an upper patch antenna, a lower patch antenna, a grounding layer, a transmission line layer, and a first feeding line and a second feeding line passing through the grounding layer. Each of the first feeding line and the second feeding line includes a first portion, a second portion and a third portion. The first portion is disposed between the lower patch antenna and the grounding layer and is perpendicular to the grounding layer. The second portion is disposed between the grounding layer and the transmission line layer and is perpendicular to the grounding layer. The third portion is disposed within the grounding layer and is parallel to the grounding layer. The third portion is coupled between the first portion and the second portion.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are described herein. The systems can include a customizing member including an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The customizing member includes a tubing extending along and around a distal portion of the introducer sheath. This tubing is cuttable and contains a distal end of the flow diverter. The length of the flow diverter can be customized by cutting through the tubing and the therein contained flow diverter.

Abstract: An antenna module and a portable electric device are provided. The antenna module includes a flexible substrate, a first antenna circuit and a second antenna circuit. Each of an L-shaped bent portion and a U-shaped bent portion of the flexible substrate has a first end and a second end opposite to each other. The first end of the L-shaped bent portion is connected to a first main body of the flexible substrate. The first end of the U-shaped bent portion is connected to the second end of the L-shaped bent portion. The second end of the U-shaped bent portion is connected to a second main body of the flexible substrate. The first antenna circuit and the second antenna circuit are respectively disposed on the first main body and the second main portion. The portable electric device includes a casing and the antenna module disposed at a corner.

Abstract: A millimeter wave radio frequency (RF) structure uses a substrate including a liquid-crystal polymer material, at least one dual-polarized antenna, a RF transceiver module, and a switching module electrically connected to the at least one dual-polarized antenna and the RF transceiver module, where the switching module includes a first switching element and a second switching element electrically connected to the at least one dual-polarized antenna, and a third switching element electrically connected to the first switching element and the second switching element, to enhance characteristics of a liquid-crystal polymer (LCP) substrate for millimeter waves, and implement high-frequency, high-speed transmission while ensuring high reliability.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are described herein. The systems can include a customizing member including an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The customizing member includes a tubing extending along and around a distal portion of the introducer sheath. This tubing is cuttable and contains a distal end of the flow diverter. The length of the flow diverter can be customized by cutting through the tubing and the therein contained flow diverter.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are described herein. The systems can include a customizing member including an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The customizing member includes a tubing extending along and around a distal portion of the introducer sheath. This tubing is cuttable and contains a distal end of the flow diverter. The length of the flow diverter can be customized by cutting through the tubing and the therein contained flow diverter.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are described herein. The systems can include an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The system includes a tubing extending along and around a distal portion of the introducer sheath. This tubing is cuttable and contains a distal end of the flow diverter. The length of the flow diverter can be customized by cutting through the tubing and the therein contained flow diverter.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are disclosed herein. The systems can include an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The deployment features can include one or more of a pusher, one or several friction bumps, one or several deployment coils, a claw mechanism, a self-expanding element, a supporting coil, a tip coil, and/or an atraumatic tip. One or more of the deployment features can be radiopaque.

Abstract: A Balun filter is disposed on a circuit board, and includes a first wire, a second wire, a third wire and a ground plane. The first wire has one end for disposing a first feeding point. The second wire has one end for disposing a second feeding point. The third wire is configured for disposing a third feeding point and includes a first coupling section, a second coupling section, a first central section and a second central section. The third feeding point is located between the first central section and the second central section, and the first coupling section, the first central section, the second central section and the second coupling section are electrically connected in sequence. In a parallel direction of the first wire, the first feeding point and the second feeding point are located in two opposite directions, respectively, relative to the third feeding point.

Abstract: A 24 GHz band-pass filter includes a step impedance resonator, a first U-shape feeding portion, a second U-shape feeding portion, short-circuit stubs and open-circuit stubs. The step impedance resonator includes a first main portion, a second main portion, and a connection portion for connecting the main portions to each other. The first main portion and the second main portion are electrically connected to a first signal input/output port and a second signal input/output port. The first U-shape feeding portion is electrically connected between the first main portion and the first signal input/output port. The second U-shape feeding portion is electrically connected between the second main portion and the second signal input/output port. The short-circuit stubs are electrically connected to coupling segments of the step impedance resonator. The open-circuit stubs are electrically connected to the first U-shape feeding portion and the second U-shape feeding portion.

Abstract: A multi-band filter includes a circuit board, a first resonator, a second resonator, and a coupling element configured to couple the first resonator with the second resonator. The coupling element includes a first coupling capacitor, a second coupling capacitor, a first short-circuited stub and a second short-circuited stub. The first coupling capacitor has two terminals electrically connected to the first portion of the first resonator and the first portion of the second resonator respectively. The second coupling capacitor has two terminals electrically connected to the second portion of the first resonator and the second portion of the second resonator respectively. The first short-circuited stub is electrically connected to the first coupling capacitor and a ground plane. The second short-circuited stub is electrically connected to the second coupling capacitor and a ground plane.

Abstract: An appressed antenna includes an antenna housing and a metal shell. The antenna housing comprising a housing and a planar antenna, where the planar antenna is bent with one part folded onto the inner surface of the housing and other part pressed onto the outer surface of the housing. The antenna housing is sleeve fitted to the metal shell with a gap between for the planar antenna to radiate. In this all-metal environment, the position of the antenna is close to the gap opening will increase radiation efficiency. By having at least a branch at the tail end of the appressed antenna, the appressed antenna can have a good return loss and antenna gain.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are disclosed herein. The systems can include an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire that extends into and terminates in the flow diverter, and one or several deployment features coupled to the core wire and engaging the flow diverter. The deployment features can include one or more of a pusher, one or several friction bumps, one or several deployment coils, a claw mechanism, a self-expanding element, a supporting coil, a tip coil, and/or an atraumatic tip. One or more of the deployment features can be radiopaque.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are disclosed herein. The systems can include an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The deployment features can include one or more of a pusher, one or several friction bumps, one or several deployment coils, a claw mechanism, a self-expanding element, a supporting coil, a tip coil, and/or an atraumatic tip. One or more of the deployment features can be radiopaque.

Abstract: Neurovascular flow diverter and delivery systems, and methods of using the same are disclosed herein. The systems can include an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The deployment features can include one or more of a pusher, one or several friction bumps, one or several deployment coils, a claw mechanism, a self-expanding element, a supporting coil, a tip coil, and/or an atraumatic tip. One or more of the deployment features can be radiopaque.

Abstract: A composite antenna and array antenna using the same. The antenna has a three-layer structure including a patch antenna, a slot antenna and a transmission line. A first layer includes a patch antenna resonating at half a wavelength, a second layer includes a slot antenna resonating at half the wavelength, and a third layer includes a transmission line and a feed point. The three layers are coupled and the entire composite antenna unit satisfies a resonance condition. A signal is fed through the transmission line and coupled to the slot antenna, and the signal from the slot antenna is further coupled to the patch antenna. This composition antenna has a desirable antenna gain, and an increased antenna bandwidth compared to a single patch antenna or slot antenna.

Abstract: An appressed antenna includes an antenna housing and a metal shell. The antenna housing comprising a housing and a planar antenna, where the planar antenna is bent with one part folded onto the inner surface of the housing and other part pressed onto the outer surface of the housing. The antenna housing is sleeve fitted to the metal shell with a gap between for the planar antenna to radiate. In this all-metal environment, the position of the antenna is close to the gap opening will increase radiation efficiency. By having at least a branch at the tail end of the appressed antenna, the appressed antenna can have a good return loss and antenna gain.

Abstract: A millimeter wave radio frequency (RF) structure uses a substrate including a liquid-crystal polymer material, at least one dual-polarized antenna, a RF transceiver module, and a switching module electrically connected to the at least one dual-polarized antenna and the RF transceiver module, where the switching module includes a first switching element and a second switching element electrically connected to the at least one dual-polarized antenna, and a third switching element electrically connected to the first switching element and the second switching element, to enhance characteristics of a liquid-crystal polymer (LCP) substrate for millimeter waves, and implement high-frequency, high-speed transmission while ensuring high reliability.

Abstract: A coupled array antenna includes a feeding network layer and a plurality of patch antennas disposed on the feeding network layer. A first patch antenna is disposed on the feeding network layer, and a second patch antenna is disposed above and coupled to the first patch antenna without contacting. A plurality of coupled array antennas are connected in series through microstrips to form a coupled array antenna device to maximize the antenna gain and bandwidth.

Abstract: A composite antenna and array antenna using the same. The antenna has a three-layer structure including a patch antenna, a slot antenna and a transmission line. A first layer includes a patch antenna resonating at half a wavelength, a second layer includes a slot antenna resonating at half the wavelength, and a third layer includes a transmission line and a feed point. The three layers are coupled and the entire composite antenna unit satisfies a resonance condition. A signal is fed through the transmission line and coupled to the slot antenna, and the signal from the slot antenna is further coupled to the patch antenna. This composition antenna has a desirable antenna gain, and an increased antenna bandwidth compared to a single patch antenna or slot antenna.