Title :
Low power consumption and wide locking-range frequency divider by two
Author :
Janne-Wha Wu ; Chih-Ho Tu ; Jheng-Wei Wu ; Sheng-Wen Chen ; Peng Kao ; Kai-Cheng Hsu
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chiayi, Taiwan
Abstract :
A low power consumption and wide locking-range frequency divider by two is demonstrated with dual-injection-locking. The proposed structure not only uses direct-injection, but also re-utilizes the current source as the second injector. The effectiveness of dual injection was analyzed by the vector-relationship between these two injection signals. The measured locking-range is from 10.68GHz to 14.26GHz (28.7%) with an injection power of 0dBm. The injection signal sensitivity can reach -30dBm. The power consumption of the core circuit takes only 3.25mW from a 1V power supply.
Keywords :
constant current sources; frequency dividers; low-power electronics; microwave integrated circuits; core circuit; current source; dual injection locking; frequency 10.68 GHz to 14.26 GHz; injection signal sensitivity; low power consumption; power 3.25 mW; second injector; vector-relationship; voltage 1 V; wide locking-range frequency divider; Frequency conversion; Power demand; Power generation; Resonant frequency; Sensitivity; Topology; Tuning; Direct-injection; Frequency divider; Injection-locking;
Conference_Titel :
European Microwave Integrated Circuit Conference (EuMIC), 2014 9th
Conference_Location :
Rome
DOI :
10.1109/EuMIC.2014.6997795
