公开(公告)号：KR100748865B1

公开(公告)日：2007-08-13

申请号：KR1020060038773

申请日：2006-04-28

Applicant: 충남대학교산학협력단

Inventor： 우종명 ,  장연정 ,  정한영 ,  김병국

IPC: H01Q1/38 ,  H01Q1/24

Abstract: An antenna for a satellite digital multimedia broadcasting terminal using a microstrip antenna is provided to implement miniaturization by integrating a folded type antenna with a c-type antenna. An antenna for a satellite digital multimedia broadcasting terminal using a microstrip antenna includes a folded c-type patch(320) and a printed circuit board(310). An upper flat plate(321) has a groove of a predetermined depth on a central part. A vertical flat plate(322) is vertically extended from the other front end of the upper flat plate(321) to a down direction. A lower flat plate(323) is connected to the vertical flat plate(323) and is extended in parallel with the upper flat plate(321). A first iris(324A,324B) is vertically extended from a front end of the upper flat plate(321) to a down direction. A first folded unit(325A,325B) is extended in parallel with the upper flat plate(321) from an end portion of the first iris(324A,324B) to the inside of the folded c-type patch(320). A second iris(326) is vertically extended from an end portion of the lower flat plate(323) to the upper flat plate(321). A second folding unit(327) is extended from an end portion of the second iris(326) to the inside of the folded c-type patch(320) in parallel with the lower flat plate(323). A microstrip line(328) of an L shape is vertically extended from a central part of the groove and is attached to the printed circuit board(310). The printed circuit board(310) is located between the upper flat plate(321) and the lower flat plate(323), and has a predetermined dielectric constant. The printed circuit board(310) functions as a ground.

Abstract translation: 提供一种使用微带天线的卫星数字多媒体广播终端的天线，通过将折叠型天线与c型天线集成来实现小型化。 用于使用微带天线的卫星数字多媒体广播终端的天线包括折叠的c型贴片（320）和印刷电路板（310）。 上平板（321）在中央部分具有预定深度的凹槽。 垂直平板（322）从上平板（321）的另一个前端沿垂直方向向下延伸。 下平板（323）连接到垂直平板（323）并且平行于上平板（321）延伸。 第一光圈（324A，324B）从上平板（321）的前端向下方向垂直延伸。 第一折叠单元（325A，325B）从第一可变光阑（324A，324B）的端部平行于上平板（321）延伸到折叠的c型贴片（320）的内部。 第二虹膜（326）从下平板（323）的端部垂直延伸到上平板（321）。 第二折叠单元（327）从第二虹膜（326）的端部延伸到与下平板（323）平行的折叠c型贴片（320）的内侧。 L形的微带线（328）从凹槽的中央部分竖直延伸并附接到印刷电路板（310）。 印刷电路板（310）位于上平板（321）和下平板（323）之间，并且具有预定的介电常数。 印刷电路板（310）用作地。