Electrical Prism: A High Quality Factor Filter for mm Wave and THz Frequencies
- 详细技术说明
- Cornell researchers have recently developed an "electrical prism" capable of filtering extremely high frequency (THz range) signals with a very high quality (Q) factor.
- *Abstract
-
The Q factor of a filter is a measure of its selectivity, and as a filter's operating frequency becomes higher, it becomes increasingly difficult to maintain a high Q factor using conventional techniques. While still allowing the use of conventional components (inductors and capacitors), this novel electrical prism uses a lattice structure to provide a much higher Q factor for the overall filter than the Q factors of the individual components. As in an optical prism, input signals are split up by frequency and different frequencies are diverted in different directions. An output signal of a desired frequency is selected simply by choosing the appropriate output point on the lattice. The device allows greatly improved filtering for any high frequency application. A prototype CMOS chip operating at 50 GHz is available.
Potential Applications
- Molecular spectroscopy
- Imaging
- Radar
- Remote sensing
Advantages
- Very high Q factor
- Conventional components - easily fabricated with conventional CMOS process
- *Licensing
- Martin Teschlmt439@cornell.edu(607) 254-4454
- 其他
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Patent application: 20110215881
- 国家/地区
- 美国
