Design and Implementation of Group Delay Transmission Line Using z Domain Techniques

• Main Authors: Yun-fei Bai, 白雲飛
• Other Authors: Ching-Wen Hsue
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/52266529484689295577

碩士 === 國立臺灣科技大學 === 電子工程系 === 103 === In this thesis, an open-circuited three-section stub and its complementary slot-line are employed to implement a group delay transmission line with broadband response, excessive group delay and extended high-order harmonic response. The transmission scattering parameter S21 is formulated in the discrete-time z domain to facilitate the study of both fundamental and higher-order harmonic responses of open-circuited three-section stubs. The complementary slot-line is employed to convert the stop-band caused by the stub to a pass-band. As a result, a group delay transmission line with broadband response is obtained. Measured and simulated results of group delay of open-circuited three-section stub with its complementary slot-line structure are presented to compare with those of conventional open-circuited single-section stub with its complementary slot-line. In addition, a quasi-short-circuited single-section stub and its complementary slot-line are also presented in this paper in order to compare with the above open-circuited stub and its complementary slot-line structure.