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20 GHz CMOS injection-locked frequency divider with variable division ratio

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5 Author(s)
Huang, F.-H. ; Dept. of Electr. Eng., Nat. Central.Univ., Taiwan ; Lin, D.M. ; Wang, H.P. ; Chiu, W.-Y.
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An injection-locked frequency divider (ILFD) with variable division ratio, controlled by the input offset voltage, was realized using a 0.13 μm CMOS technology. In this report, the controllable division ratios were made from 2 up to 16 with an input AC signal of 10 GHz, by changing the input DC offset voltages. This divider also performs division ratios of 2, 4, 6 and 8 with a wide-locking range up to 20 GHz at 2.5 GHz self-oscillation. The DC supplied voltage of this circuit is only 2 V and the dividing capability can reach 20 GHz.

Published in:

Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE

Date of Conference:

12-14 June 2005