Local oscillator using non-radiative dielectric waveguide
US6545552B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Jul 23, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B9/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a local oscillator utilizing an NRD guide applicable to a millimeter wave integrated circuits. A Gunn diode is buried in a bottom of a housing so that a heat generated from the Gunn diode is directly transferred to the housing and is rapidly emitted. Thus, an oscillating power and an oscillating frequency obtained from the local oscillator can be stabilized due to efficient heat-emission. Since a diode mount is not required, manufacturing costs can be reduced while productivity increases. A metal rod resonator, which is easily assembled and has good power and frequency stability as compared with a microstrip resonator, is used as a resonating device. The metal rod resonator is inserted into a fixing block in perpendicular to the NRD guide. An end of the metal rod resonator directly makes contact with an anode of the gun diode. A cavity forming member for defining a cavity, which surrounds main components including the Gunn diode, is installed in the housing. A local oscillator module can be protected and the oscillating power and the oscillating frequency can be stably maintained under a frequency band satisfying a cavity condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.