公开(公告)号：JPH08186415A

公开(公告)日：1996-07-16

申请号：JP31705694

申请日：1994-12-20

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： RI SOURETSU ,  KIYOU KOUYON ,  KAN SEKIKICHI

IPC: H01P1/208 ,  H01P7/08

Abstract: PURPOSE: To reduce the size by including a microwave use single crystal substrate, a coupling axis, a center conductor and a ground plane so as to improve the performance and excellence coping with frequency requirements. CONSTITUTION: An upper layer of a double mode disk resonator made of a high temperature superconducting material on a single crystal substrate 4 keeps a characteristic impedance of about 50 ohms, for example, and includes two coupling axes 1 of a microstrip form formed at an angle of 90 deg. and generating a double mode signal and includes a center conductor disk 3 formed at a prescribed interval 2 with respect to the axis 1 in which a square perturbation area 3a is formed. An interval 2 between the two axes 1 and the conductor 3 is selected so that resonance is produced between them. The axis 1 has a line width calculated and designed by the thickness and the dielectric constant of the substrate 4. When an output terminal use coupling axis is placed at a right angle to the input terminal coupling axis 1, the anti-resonance characteristic to the resonance is realized and the characteristic of the microwave resonator is improved.

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.