Multilayered helical antenna for mobile telecommunication units.

    公开(公告)号:HK1026072A1

    公开(公告)日:2000-12-01

    申请号:HK00105266

    申请日:2000-08-22

    Abstract: A multilayered helical antenna for mobile communication units includes a first dielectric sheet, a plurality of second dielectric sheets, a plurality of second and third dielectric sheets. All of the second dielectric sheets, except one, have a starting hole and an ending hole, with the exception having the starting hole only. Each of the second dielectric sheet is provided with a partially opened circular metallic pattern. Each of the third dielectric sheets has a via hole. Each of the dielectric sheets has a through-hole at a center thereof in order to allow a whip antenna to be slid upward and downward along a center axis of a helical antenna which is formed by stacking the dielectric sheets in a predetermined order. The via holes are filled with the same conducting material as the partially opened circular metallic patterns to thereby vertically connect the partially opened circular metallic patterns on the second dielectric sheets through the corresponding starting holes and ending holes, thereby forming a spiral capable of transmitting and receiving horizontal and vertical polarizations.

    자외선 광원을 이용한 생물입자 탐지장치 및 방법

    公开(公告)号:KR20180066287A

    公开(公告)日:2018-06-19

    申请号:KR20160165517

    申请日:2016-12-07

    Abstract: 본발명은자외선광원을이용한생물입자탐지장치및 방법이개시된다. 본발명에따른생물입자탐지장치는일단으로대기가유입되고, 타단으로유입된대기가유출되는본체, 본체의내부에설치되고, 유입된대기에자외선을조사하는자외선광원부, 본체의내부에설치되고, 조사된자외선을통해발생되는산란광을검출하는제1 검출부, 본체의내부에설치되고, 조사된자외선을통해발생되는형광을검출하는제2 검출부및 제1 검출부에서검출된산란광및 제2 검출부에서검출된형광을이용하여상기대기에포함된생물입자를탐지하는제어부를포함한다.

Patent Agency Ranking