Browsing by Author "Wei, H.-J."

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9.5 GHz GaInP/GaAs HBT divide-by-two frequency divider using super-dynamic D-type flip-flop technique
(2007-06-21)
Wei, H.-J.
;
Meng, C.
;
Chang, Y. W.
;
Huang, G.-W
;
電信工程研究所
A frequency divider with super-dynamic D-type flip-flop is demonstrated in 2 mu m GaInP/GaAs HBT (f(T) = 40 GHz) technology. By biasing the HBT devices around the peak transit-time frequency (f(T)), the operating frequency of a D-FT with ECNFP (emitter-coupled negative feedback pairs) can be improved. At a supply voltage of 5 V a divide-by-two function of 9.5 GHz is achieved.
Wide-ratio broadband SiGe HBT regenerative frequency divider enhanced by differential TIA load
(2007-09-13)
Wei, H.-J.
;
Meng, C.
;
Chang, Y.-W.
;
電信工程研究所
;
Institute of Communications Engineering