Title :
Distributed broadband frequency translator
Author :
Akkarackthalin, P. ; Kee, S. ; van der Weide, D.W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Delaware Univ., Newark, DE, USA
Abstract :
We present the first frequency translator based on a nonlinear transmission line (NLTL) phase shifter. Rather than excite shock waves on the NLTL in large signal mode, we use its voltage-variable delay to modulate the phase of a 0.5-3.0 GHz microwave signal, incorporating both amplitude and phase linearization. This enables coherent heterodyning with 42 dBc carrier and spurious suppression. The technique has significant applications in both instrumentation and sensing.
Keywords :
microwave frequency convertors; microwave phase shifters; phase modulation; signal processing equipment; 0.5 to 3 GHz; amplitude linearization; coherent heterodyning; distributed broadband frequency translator; nonlinear transmission line phase shifter; phase linearization; spurious suppression; voltage-variable delay; Baseband; Chirp modulation; Diodes; Frequency; Microwave theory and techniques; Phase modulation; Phase shifters; Pulse generation; Sampling methods; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.700643
