Title :
Time-varying transmission lines (TVTL) - A new pathway to non-reciprocal and intelligent RF front-ends
Author :
Wang, Yuanxun E.
Author_Institution :
Electr. Eng. Dept., Univ. of California at Los Angeles, Los Angeles, CA, USA
Abstract :
Non-reciprocity is achieved with time-varying transmission line (TVTL) whose capacitance is modulated by a traveling wave carrier. Such a structure translates the difference in the propagating directions of the signals to the difference in modulation frequencies. By taking advantages of the low noise, broadband and frequency translation capability of TVTL, non-reciprocal RF front-ends capable of full-duplex communications can be constructed with a single antenna. Such front-ends pave the way for software defined radios as their operations are no longer subjected to the constraints of frequency diplexers.
Keywords :
software radio; telecommunication transmission lines; time-varying networks; TVTL; full-duplex communication; intelligent RF front-ends; nonreciprocal RF front-ends; single antenna; software defined radio; time-varying transmission lines; Broadband antennas; Capacitance; Couplers; Frequency modulation; Power transmission lines; Radio frequency; full-duplex front-end; non-reciprocal components; parametric amplifiers; software defined radio; time-varying circuits;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2014 IEEE
Conference_Location :
Newport Beach, CA
Print_ISBN :
978-1-4799-2298-7
DOI :
10.1109/RWS.2014.6830149
