Non-linear design, optimization and analysis of an injection-locked high efficiency VCO with arbitrarily width modulated microstrip line networks

1. Corredoiras, M.G.
2. Hoeye, S.V.
3. Fernandez, M.
4. Vazquez, C.
5. Hotopan, G.
6. Camblor, R.
7. Las-Heras, F.