Millimeter Wave Generation Using Josephson Junction Arrays.
Abstract
During the past year, studies have been initiated to determine design parameters for distributed arrays of Josephson junctions to be used as spectrally pure sources near 100 GHz. Computer simulations have verified that proposed designs provide the required phase-locking and have determined the limits for the junction capacitance and the shunt inductance. The proper termination of the array transmission line to provide optimum phase-locking has been determined. Measurements have been made of the locking strength between two junctions coupled via a transmission line. Results are in agreement with predictions. Work has been carried out in conjunction with NBS Boulder to test the suitability of conventional window junction fabrication technology for array sources. Several problems were revealed during these tests, including the difficulty of obtaining sufficiently low inductance shunt resistors. A technique was developed in this laboratory to fabricate lead alloy junctions with low shunt resistance and inductance which are suitable for use in array sources.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 20, 1986
- Accession Number
- ADA177293
Entities
People
- James Lukens
Organizations
- Stony Brook University