公开(公告)号：JPH10185981A

公开(公告)日：1998-07-14

申请号：JP23537797

申请日：1997-08-15

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： YUN ZE FUN ,  KIM JIN SOKU ,  ZO KUAN YUN

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

Abstract: PROBLEM TO BE SOLVED: To provide a rotary cylinder TEM cell generating standard electromagnetic wave (plane wave) necessary for measuring antenna pattern and the like. SOLUTION: Constituted are of a test region 1 wherein a cylindrical first external conductor 5 and the first internal conductor 4 of which both ends are connected to the second internal conductor 21 and are rotatable are included and a body to be irradiated is put, and a coaxial connector connection region 2 which has functions of connecting a coaxial cable to the main body and rotating for separating the first internal conductor 4 from the first external conductor 5 and a taper region 3 connecting with the coaxial connector connection region. The internal conductor is placed high from the center of the external conductor so as to ensure wider uniform field region and polarity is made arbitrarily controllable in the range of -100 degree to 100 degree. Also the rotation of the internal conductor is made variable by providing a drive shaft outside so that control of polarization and incidence direction of electromagnetic wave are made possible without the motion of the irradiated body itself.