Nonlinear transmission line waveform generator having an input voltage matched to the C/V characteristic of the transmission line
US6690247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1999 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Feb 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/156
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A nonlinear transmission-line waveform generator for generating a comb of frequencies and relatively short duration pulses, for example, in the range of picoseconds and tens of picoseconds, that are adapted to being utilized with ultra wideband radios in order to improve the bandwidth of such radios by an order of magnitude, for example, up to tens and even hundreds of GHz. In particular, the nonlinear transmission line waveform generator in accordance with the present invention consists of a microstrip or coplanar waveguide line. In accordance with an important aspect of the invention, the &Dgr;C/&Dgr;V characteristic of the nonlinear transmission line is matched to the frequency and amplitude of the input sinusoidal waveform. By matching the &Dgr;C/&Dgr;V characteristics of the nonlinear transmission line to the input sinusoidal waveform, the output of the nonlinear transmission line produces a comb of frequencies that are multiples of the input sinusoidal waveform frequency, making it suitable as a harmonic generator. The nonlinear transmission line can also be used to generate relatively short duration pulses by disposing a shorting stub at the output. The shorting stub causes …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.