Modification of superconducting bandpass filter structures using different image impedances

Sang Yeol Lee; Seok Kil Han; Kwang-Yong Kang; Dal Ahn

doi:10.1117/12.218173

1 September 1995 Modification of superconducting bandpass filter structures using different image impedances

Sang Yeol Lee, Seok Kil Han, Kwang-Yong Kang, Dal Ahn

Proceedings Volume 2559, High-Temperature Microwave Superconductors and Applications; (1995) https://doi.org/10.1117/12.218173
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

A new bandpass filter design is presented which uses arbitrary image impedance of the superconducting thin film coupled lines. In order to investigate the performance of different superconducting bandpass filters with different image impedances, we have selected and designed 4-pole Chebyshev 50 (Omega) and 75 (Omega) coupled line superconducting bandpass filters which have the same passband of 11.7 approximately 12.4 GHz. The measured result of the 75 (Omega) coupled line superconducting bandpass filter agrees with the result of the 50 (Omega) coupled line superconducting bandpass filter. The technique used in this paper to change the filter structure is particularly attractive because of its application to improve the power-handling ability of superconducting passive device and its possibility to reduce the size of superconducting thin film microwave device which has the limitation of superconducting thin film size.

Citation Download Citation

Sang Yeol Lee, Seok Kil Han, Kwang-Yong Kang, and Dal Ahn "Modification of superconducting bandpass filter structures using different image impedances", Proc. SPIE 2559, High-Temperature Microwave Superconductors and Applications, (1 September 1995); https://doi.org/10.1117/12.218173

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available