Title :
Time- and frequency-domain measurements for an active negative group delay circuit
Author :
Erickson, Suzanne J. ; Khaja, Mezan ; Mojahedi, Mohammad
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Ont., Canada
Abstract :
Time- and frequency-domain measurements of an active negative-group-delay (NGD) circuit exhibiting gain and NGD at low frequencies are presented. The active design eliminates the problem of high loss, associated with the passive transmission line exhibiting both negative refractive index and NGD. A high-frequency, active NGD circuit topology with an operation frequency near 2.5 GHz, is also discussed.
Keywords :
active networks; delay circuits; frequency-domain analysis; network topology; time-domain analysis; transmission lines; NGD circuit; active negative group delay circuit; circuit topology; frequency-domain measurements; gain; time-domain measurements; Circuit topology; Delay; Distributed parameter circuits; Frequency measurement; Gain measurement; Propagation losses; Pulse modulation; RLC circuits; Refractive index; Transfer functions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552375
