公开(公告)号：JPH08222907A

公开(公告)日：1996-08-30

申请号：JP29842795

申请日：1995-11-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIYOU KOUYON ,  RI SOURETSU ,  KAN SEKIKICHI ,  YASU TATSU

IPC: H01P1/203

Abstract: PROBLEM TO BE SOLVED: To obtain a filter available in a microwave communication system such as satellite communication and satellite broadcasting by constituting the filter of a high temperature, superconductive epitaxial thin film and a filter pattern adopting a parallel connection line system as a base. SOLUTION: A signal transmitting input terminal 1 is manufactured of a high temperature, superconductive microstrip line, and connected through a matching network with a parallel connection line. A filter pattern 2 is a Chebyshev type band-pass filter pattern for a microwave manufactured in a parallel connection system. This pattern 2 is optimized by performing simulation while using a microwave part designing tool. Then, at the time of design, the amplitude and length of the parallel connection line and a gap between the parallel connection lines are determined in consideration of the dielectric constant of a mono-crystal substrate 4 and the thickness of the high temperature conductive epitaxial thin film. Thus, the miniaturization and performance improvement of a microwave communication system can be attained.