Abstract: A shark fin antenna equipped with a V2X communication system which ensures high-efficiency performance in a moving vehicle, thereby wirelessly providing various frequency transmitting/receiving signals to a user's vehicle, an adjacent vehicle as desired by the user, and a pedestrian, whereby an integrated telematics service including a safety based service is provided. The shark fin antenna includes a fixing part arranged on which an antenna is installed within an applicable range of its internal space, produces an antenna similar to the form of the fixing part, thereby implementing a small-sized antenna and smoothly receiving signals of various bands due to favorable antenna gain and radiation pattern condition, and combines the antenna gain and radiation pattern condition while providing the forms of an antenna unit and an auxiliary unit, thereby flexibly responding to receiving signals of different bands according to use regions.

Abstract: Disclosed is an ultra-wide band antenna. An antenna according to the present invention comprises: a radiating body for emitting electromagnetic waves passing through the antenna; a feeder unit for supplying electric signals to the radiating body; and an impedance feeder unit, having a rectangular shape, connecting the radiating body and the feeder unit, and the antenna additionally comprises a slotted part in the interior of the radiating body to increase the effectiveness of the antenna. Additionally, the diameter of the radiating body is 2.0˜3.0 times the length, in the horizontal-direction, of the impedance feeder unit, and the length, in the vertical-direction, of the impedance feeder unit is 1.0˜1.3 times the length thereof in the horizontal direction, and as such, the present invention can be applied to a device utilizing multiple-input and multiple-output and high-speed data, the device having secured an ultra-wide band by means of a single antenna.

Abstract: A printed diplexer is printed on a PCB, having at least two input terminals respectively connected to at least two end portions thereof, having the output terminal connected at a center portion thereof, and configured to output a signal inputted from the at least two input terminals to the output terminal.

Abstract: A phase shifter and a transmission system equipped with same. The phase shifter has a section having an open circular shape, thereby shifting the phases of signals entering from the input unit.

Abstract: An efficiency variable antenna is provided, the efficiency variable antenna including: a feeding portion; a first grounding portion; a second grounding portion; a first switching element configured to turn on or off the feeding portion and the first grounding portion; and a second switching element configured to turn on or off the feeding portion and the second grounding portion.

Abstract: A shark pin antenna is proposed, the shark pin antenna including a base, a circuit board mounted on the base, a 3G/4G antenna mounted at a first end of the circuit board and configured to receive a signal of 3G/4G band signal, an AM/FM antenna mounted at a second end of the circuit board and configured to receive AM/FM band signal, V2X antennas mounted at a lateral surface of the AM/FM antenna, each being spaced apart at a predetermined distance and configured to realize a V2X (Vehicle to Everything) communication, and a plurality of antennas positioned between the 3G/4G antenna and the AM/FM antenna to receive a band signal higher than the AM/FM band signal, but lower than the 3G/4G band signal.

Abstract: An SPDT switch configured to separate a transmission signal and a reception signal in order to transmit and receive signals in same frequency through an antenna, wherein difference between antenna impedance and reception terminal impedance of the reception unit is less than difference between antenna impedance and transmission terminal impedance, and difference between the transmission terminal impedance and the antenna impedance is less than a difference between the transmission terminal impedance and the reception terminal impedance. The transmission and reception terminal impedance may be specified using a pattern of an RF signal line printed on a PCB. The SPDT switch has more competitive price relating to development of a wireless system because a pattern printed on the PCB is used, and is easy to be applied since passive elements in simple structure are used, therefore having no risk of failure due to ESD.

Abstract: Disclosed is an antenna. The antenna includes a first radiating part bent in a predetermined direction, a second radiating part under the first radiating part, a conductive member connected to the second radiating part, and a coupling part spaced apart from the conductive member while surrounding a lateral side of the conductive member.

Abstract: Disclosed is an ultra-wide band antenna. An antenna according to the present invention comprises: a radiating body for emitting electromagnetic waves passing through the antenna; a feeder unit for supplying electric signals to the radiating body; and an impedance feeder unit, having a rectangular shape, connecting the radiating body and the feeder unit, and the antenna additionally comprises a slotted part in the interior of the radiating body to increase the effectiveness of the antenna. Additionally, the diameter of the radiating body is 2.0˜3.0 times the length, in the horizontal-direction, of the impedance feeder unit, and the length, in the vertical-direction, of the impedance feeder unit is 1.0˜1.3 times the length thereof in the horizontal direction, and as such, the present invention can be applied to a device utilizing multiple-input and multiple-output and high-speed data, the device having secured an ultra-wide band by means of a single antenna.

Abstract: A printed diplexer is printed on a PCB, having at least two input terminals respectively connected to at least two end portions thereof, having the output terminal connected at a center portion thereof, and configured to output a signal inputted from the at least two input terminals to the output terminal.

Abstract: A patch antenna synchronously generating a circularly polarized wave and a linearly polarized wave comprises a first radiator radiating a circularly polarized wave with respect to an antenna signal, a first substrate provided at a part or the whole of the rear surface of the first radiator, a second radiator provided at a part or the whole of the rear surface of the first substrate and radiating a linearly polarized wave with respect to the antenna signal, and a second substrate provided at a part or the whole of the rear surface of the second radiator.

Abstract: A Multiple-Input Multiple-Output (MIMO) antenna having parasitic elements is provided. The MIMO antenna includes a plurality of antenna elements, a plurality of parasitic elements, and a bridge. The plurality of antenna elements is symmetrically disposed on one side surface of a board while maintaining a predetermined distance therebetween. The plurality of parasitic elements is disposed on the other side surface of the board in a one-to-one correspondence with the plurality of antenna elements. The bridge is formed of a metal pattern line, and is configured to connect the plurality of parasitic elements to each other.

Abstract: The present invention relates to a technology for forming a patch antenna generating both linearly and circularly polarized waves at the same time, so as to reduce a propagation loss during transmission/receiving operations between a circularly polarized antenna and a linearly polarized antenna.

Abstract: A patch antenna synchronously generating a circularly polarized wave and a linearly polarized wave comprises a first radiator radiating a circularly polarized wave with respect to an antenna signal, a first substrate provided at a part or the whole of the rear surface of the first radiator, a second radiator provided at a part or the whole of the rear surface of the first substrate and radiating a linearly polarized wave with respect to the antenna signal, and a second substrate provided at a part or the whole of the rear surface of the second radiator.

Abstract: A Multiple-Input Multiple-Output (MIMO) antenna having parasitic elements is provided. The MIMO antenna includes a plurality of antenna elements, a plurality of parasitic elements, and a bridge. The plurality of antenna elements is symmetrically disposed on one side surface of a board while maintaining a predetermined distance therebetween. The plurality of parasitic elements is disposed on the other side surface of the board in a one-to-one correspondence with the plurality of antenna elements. The bridge is formed of a metal pattern line, and is configured to connect the plurality of parasitic elements to each other.

Abstract: The present invention relates to a technology for forming a patch antenna generating both linearly and circularly polarized waves at the same time, so as to reduce a propagation loss during transmission/receiving operations between a circularly polarized antenna and a linearly polarized antenna.

Abstract: In an autofocus method, an electron beam is scanned onto a subject through a condensing member. A setting condition of the condensing member is changed within a first range. An image evaluation value is measured using a secondary electron current from the subject according to the setting condition within the first range. A second range adjacent to the first range and including the setting condition corresponding to the first maximum is set when a first maximum of the image evaluation value is not a peak value. The setting condition is changed within the second range. An image evaluation value is measured using a secondary electron current according to the setting condition within the second range. The condensing member is set with the setting condition corresponding to a second maximum of the image evaluation value when the second maximum value is the peak value.

Abstract: A first interlayer insulating layer is formed over a semiconductor substrate having a semiconductor element. A first line is formed on the first interlayer insulating layer and is connected to the semiconductor element via a contact hole. A second interlayer insulating layer is formed over the first line and the first interlayer insulating layer. An etch barrier layer is formed on the second interlayer insulating layer. A buried contract hole extends through the etch barrier layer and the first and second interlayer insulating layers. An insulating spacer is formed on the side walls of the buried contact hole. A second line is formed on the etch barrier layer and connected to the semiconductor element via the buried contact hole. The buried contact hole has a substantially vertical profile at a top end thereof to provide a sufficient misalignment margin between the buried contact hole and the second line.

Abstract: An interconnect in a microelectronic device is formed by forming a first mesa on a substrate. A first insulation layer is then formed on the substrate, the first insulation layer covering the first mesa to define a step at an edge thereof A second mesa is formed on the first insulation layer adjacent the step, the second mesa being lower than the step. A second insulation layer is formed on the substrate, covering the second mesa and forming a step in the second insulation layer overlying the step in the first insulation layer. A spun-on-glass (SOG) layer on the second insulation layer, and then is planarized to expose a first portion of the second insulation layer at the step in the second insulation layer and to expose a second portion of the second insulation layer overlying the second mesa, thereby defining a planarized SOG region between the step and the second mesa.

Abstract: An interconnect in a microelectronic device is formed by forming a first mesa on a substrate. A first insulation layer is then formed on the substrate, the first insulation layer covering the first mesa to define a step at an edge thereof. A second mesa is formed on the first insulation layer adjacent the step, the second mesa being lower than the step. A second insulation layer is formed on the substrate, covering the second mesa and forming a step in the second insulation layer overlying the step in the first insulation layer. A spun-on-glass (SOG) layer on the second insulation layer, and then is planarized to expose a first portion of the second insulation layer at the step in the second insulation layer and to expose a second portion of the second insulation layer overlying the second mesa, thereby defining a planarized SOG region between the step and the second mesa.