Broadband doubly balanced mixer having improved termination insensitivity characteristics
US4224572A · kind A · utility
9Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1979 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | May 16, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D9/0608
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A diode modulator type electrical mixer network has at least two hybrids of transmission line construction, interconnected by means of two sets of four or more diodes arranged in bridge circuit configurations. The interconnecting configuration provides a novel means of local oscillator injection that allows the mixer to operate in a mode that substantially reduces the mixer's susceptability to effects caused by reflective external source and load termination impedances differing from an ideal 50 ohm nonreflective condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.