한국초전도저온공학회:학술대회논문집 (Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference)
- 한국초전도저온공학회 2002년도 학술대회 논문집
- /
- Pages.135-137
- /
- 2002
Superconductive Multi-pole Hairpin type Filter과 Delay Time 설계 및 실험
Modeling and Simulation of the Delay Time in Superconductive Multi-pole Hairpin type Filter
초록
In the favor of adjusting microwave signal, Hairpin type Filter, which delay microwave signal enough to several nanosecond, is a key component. One of the main advantage in using Hairpin type Filter is a conveniency for equipping with Delay Module, and because of having a wide bandwidth, Hairpin type Filter can be designed to satisfy the most applications. In this work, we attempted to estimate the delay time in a superconductive hairpin type filter A software to synthesize even and odd order equiripple hairpin type filter has been developed. This software arbitrarily locate its transfer zeros making symmetric of asymmetric amplitude response and equalizing group delay. Borland C++ compiler has been used. The program was designed to run under MS-DOS, Window 98, Window 2000. The program optimizes the position of the transfer function zeros in order to fulfill the group delay specification masks. We designed and fabricated a hairpin type HTS 2-pole microstrip bandpass filter to operate at 5.8Ghz. The fabrication method was pulsed laser deposition and YBCO films were deposited on sapphire substrates with a Ce