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This work describes an electrical interferometer for contactless permittivity measurements working at 120 GHz. It was fabricated in a 130 nm SiGe process featuring an ft and fmax of 240 and 330 GHz. The on-chip system contains a 120 GHz VCO with a tuning range of 7 GHz featuring a divide-by-64 circuit to enable external PLL operation. The subsequent buffer provides 7 dBm of output power at 120 GHz...
The paper deals with a new technique for deviation of atherosclerotic plaque. There are two plaque types: The yellow and white plaque. The white plaque is hard, fibrous and dimensionally stable. The yellow plaque is soft with high-cholesterol ratio and dimensionally instable. Every hit with a medical tool can generate a critical medical case, because the plaque can be rapture and the plaque particles...
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