Variable impedance circuit providing reduced distortion
US5379008A · kind A · utility
9Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Mar 3, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic circuit (300) includes first (302) and second (304) variable impedance devices coupled together. The first (302) and second (304) variable impedance devices are designed such that each exhibits a transfer function which is substantially inverse with respect to the other about the operating point of the electronic circuit. This provides for an electronic circuit which exhibits very low distortion characteristics. Circuits such as tunable filters, voltage-controlled oscillators (VCOs), receivers, etc. will benefit from using an electronic circuit (300) which exhibits such low distortion characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.