公开(公告)号：JPH11174102A

公开(公告)日：1999-07-02

申请号：JP21333198

申请日：1998-07-28

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： IN ZAIFUUN ,  CHO KOIN

IPC: G01R29/08 ,  G01R29/10 ,  G01R31/00 ,  G01R33/42

Abstract: PROBLEM TO BE SOLVED: To obtain a Y-shaped TEM cell which can optimize utilization of a test space, by a method wherein three internal conductors are provided in a test region, the support base of an object to be tested is made rotatable and three N-type connectors in a coaxial connector joint region are connected, in a taper region, to both ends of the test region. SOLUTION: N-type connectors 5 to 7 are connected to a body in a coaxial connector joint region 3 via a taper region 2 from a test region 1 in which an object to be tested is placed. The N-type connectors 5 to 7 are connected to respective left ends of a first internal conductor 11 to a third internal conductor 13 in the test region 1, and N-type connectors 8 to 10 are connected to their right ends. In addition, a gate is provided in the test region 1 in addition to a third outside conductor 16 in the center, and the state of the object to be tested is observed from a shielding window. The object to be tested is fixed to, and arranged on, a rotatable support base 4, and a support base 19 supports the body as a whole so as to be freely movable. The second internal conductor 12 and the third internal conductor 13 are installed near an upper wall and a lower wall inside the third outside conductor 16, also the first internal conductor 11 is installed near a wall, and a wide and uniform region is ensured. As a result, the utilization degree of a test space can be increased.

公开(公告)号：JP2000111598A

公开(公告)日：2000-04-21

申请号：JP18715199

申请日：1999-07-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： IN ZAIFUUN ,  CHO KOIN ,  SAI SOSEKI

IPC: G01R29/10 ,  G01R29/08 ,  G01R31/00

Abstract: PROBLEM TO BE SOLVED: To provide a linear coupling transmission line cell which eliminates multiple reflection and widens used frequency zone by generating frequency window with large Q. SOLUTION: A line cell has external conductors 4, 5 and 6 provided with a taper part coupled in one on both sides center, connector means 10, 11, 12 and 13, internal conductor, internal conductor support means 17 and 18, and an open/close means where an electromagnetic wave shield window is formed. The internal conductor is placed in internal space so as to be isolated from the external conductors 4, 5 and 6 and constituted of an upper side first internal conductor plate 7 positioning in line with the connector means 10 and 12 and a lower side second internal conductor plate 8 positioning in line with the connectors 11 and 13 and forming a parallel plane facing to the upper first internal conductor plate 7.