A novel 75 GHz InP HEMT dynamic divider

A novel dynamic frequency divider IC is realized by injection locking a broadly tunable push-pull oscillator. The injection locking process is explained using a simple pumped-delay model of a two-stage ring oscillator. Two different dynamic dividers were fabricated in the Hughes 0.1 /spl mu/m gate-length InP HEMT process. The first covers 15-68 GHz while the second operates over the entire band from 50 to 75 GHz.

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