Broadband frequency divider
US4334202A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1980 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Sep 23, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B19/05
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A microwave frequency divider operable in 8-16 GHZ range. A circuit resonant at a subharmonic frequency is formed by a pair of input microstrip transmission lines coupled to a pair of output microstrip transmission lines. Each input line is terminated by a varactor diode. The input signal is supplied to the resonant circuit by a pair of microstrip lines functioning as a two stage quarter wave transformer. A metal plate positioned over the resonant circuit and closely spaced from it functions to extend the upper end of the frequency range. A bias supply line for the diodes has a portion passing through a resistive foam block to remove spurious signals. A movable stub is positioned along the bias supply line to extend the lower end of the frequency range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.