Engineering topics
Bruston, J.
Publications and source records attributed to Bruston, J..
Development of Millimeter and Submillimeter-Wave Local Oscillator Circuits for a Space Telescope
This talk will focus on the technology that is being developed to enhance and extend planar integrated Schottky devices and circuits to meet mission local oscillator requirements.
Progress Towards the Realization of MMIC Technology at Submillimeter Wavelengths: A Frequency Multiplier to 320 GHz
The authors report on the design, analysis and performance of an all GaAs MMIC multiplier for use at submillimeter wavelengths.
Advances in Submillimeter Semiconductor-Based Device Designs and Processes
Planar submillimeter circuits are slowly replacing whisker-contacted devices at frequencies above 100 GHz, but in many cases the size constraints brought on by the short wavelengths associated with high frequency operation have not been adequeately addressed. Also, reproducibility becomes more important as we make the transition from tunable, whisker-based circuits to more monolithic designs. We are continuing to develop new circuites with more reproducible characteristics.
Advances in Submillimeter Wave Semiconductor-Based Device Designs and Processes at JPL
Planar submillimeter wave circuits are slowly replacing whisker-contacted devices at frequencies above 100 GHz, but in many cases the size constraints dictated by the short wavelengths found at high frequencies have not been adequately addressed.
Fixed-Tuned Submillimeter Waveguide Multipliers Using MMIC Technology
In preparation for the insturment ammouncement of opportunity for the Far Infrared and Submillimeter Space Telescope, and ESA/NASA space astrophysics observatory mission, local oscillator sources at high frequencies (1200 GHz) are being developed. As part of a multiplier chain beginning at ~100 GHz we are developing single and multiple diode waveguide circuits up to 640 GHz.
Design and Analysis of Broad-Band Fixed-Tuned Submillimeter-Waveguide Multipliers using MMIC Style Circuit Topology
The design and analysis of varactor diode doubler, quadrupler and cascaded doubler circuits for 320 and 640 GHz have been completed. A new approach has been employed to produce a tunerless waveguide mount with a very flexible, frequency scaleable, MMIC style multiplier circuit. The concept, design, predicted performance and measurements on some of the constituent mount elements are presented.