Cao WAN, Quan XUE. A wideband injection-locked frequency tripler[J]. Journal of Infrared and Millimeter Waves, 2022, 41(3): 573
- Journal of Infrared and Millimeter Waves
- Vol. 41, Issue 3, 573 (2022)
Fig. 1. （a）Model of half circuit of the ILFM，（b）the corresponding phasor diagram
Fig. 2. Impedance magnitude（a）and phase（b）of the second-order resonator
Fig. 3. Conventional injection-locked frequency tripler
Fig. 4. Proposed ILFT
Fig. 5. Second harmonic generation
Fig. 6. Waveform at the common source node of the injectors
Fig. 7. （a）Transient current waveform at the drains of the injectors, the currents at the drain nodes of the conventional tripler（b）and the proposed tripler（c）
Fig. 8. The locking ranges corresponding to the two types of injection structure
Fig. 9. The transformer-based fourth-order tank
Fig. 10. Dimension of the transformer in the resonator
Fig. 11. Inductance and coupling coefficient of the transformer in the resonator
Fig. 12. Impedance magnitude（a）and phase（b）of the second-order and fourth-order resonator
Fig. 13. Layout of the proposed ILFT
Fig. 14. Spectrum at 7.8 GHz input frequency
Fig. 15. Sensitivity curve
Fig. 16. Single-ended output amplitude and power
Fig. 17. Harmonic rejection ratios（HRRs）
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Table 1. Design Parameters
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Table 2. Performance summary and comparison
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