High-intercept bandlimited mixer
US5493720A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | May 20, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/109
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A mixer converting a frequency of an input signal to an intermediate frequency has an input port receiving an input signal oscillating at a signal frequency and a sinusoidal pump wave oscillating at a pump frequency. A diode is connected between an input network linked to the input port and an output network linked to an output port of the mixer. The output network and the input network together cause the diode to switch rapidly between ON and OFF states and behave as with square wave drive. Bias circuitry connected to the diode comprises a resistor connected to receive a DC component of current from the diode, the current through the resistor solely biasing the diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.