N. Mazor, O. Katz, B. Sheinman, R. Carmon, R. Ben-Yishay, Run Levinger, D. Elad
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A SiGe ku-band frequency doubler with 50% bandwidth and high harmonic suppression
A compact ×2 frequency multiplier covering all ku band is implemented in IBM 0.13μm SiGe technology. The transformer coupled circuit uses a common base configuration working in B- class mode and utilizes transmission lines properties to achieve harmonic suppression. The doubler covers a 3dB frequency range between 12.2 GHz to 20.4 GHz with a saturated output power above 9 dBm. The fundamental frequency is suppressed by over 27 dBc and the 4th harmonic is suppressed by more than 25 dBc across frequency band. The core design occupies only 550 μm × 620 μm and consumes 37 mW from a 2.7 V supply.