Frequency-scalable NLTL-based mm-wave vector signal de-modulator
US10469296B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Aug 8, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2822
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An in-phase (I) and quadrature (Q) demodulator includes an input for receiving a signal, a reference frequency source, and a sampler connected with the input. The sampler includes a sampler strobe connected with the reference frequency source, and a non-linear transmission line (NLTL) connected with the sampler strobe. The NLTL receives a strobe signal generated by the sampler strobe and multiplies a frequency of the strobe signal to generate a sampler signal. When the sampler receives a signal from the input, the sampler is configured to generate and output an intermediate frequency (IF) signal using the sampler signal. A splitter of the demodulator separates the IF signal into an in-phase (I) component and a quadrature (Q) component. Mixers receive the I and Q components and generate I and Q output signals shifted 90° in phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.