Application of small-signal model to DC SQUID circuit design

Geren, W.P.

doi:10.1109/77.403165

Cited by 3 publications

(1 citation statement)

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“…The implications of this size reduction for radar observability are no doubt obvious. A promising area of research (Geren, 1995;Hubbell, 1997) has been in the use of superconducting quantum interference devices (SQUIDS), which are effectively very sensitive voltmeters, coupled to low-gain, broadband electrical elements. If successful, this research could lead to broadband antennas with gains as high as narrowband tuned antennas!…”

Section: D1: Gordon Roesleq Boovlllen and Hamilton Incmentioning

confidence: 99%

Cryogen Free High Temperature Superconducting Magnets for 94 GHz Gyroklystron‐Powered Radar Applications

Hazelton

Danly

Gubser

1998

Naval Engineers Journal

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There is current interest within the Navy to develop high average power gyroklystron amplifiers to generate millimeter wave electromagnetic radiation for enhanced performance W‐band (94 GHz) radar applications. These applications include high resolution imaging, precision tracking, and cloud physics studies. Notwithstanding the relatively high atmospheric absorption in the high frequency millimeter wave bands, the development of radars in these frequency bands can solve many pressing problems, provided sufficient power levels can be obtained. Gyroklystron amplifiers are vacuum electronic amplifiers which are capable of providing more than an order of magnitude increase in power over conventional coupled‐cavity TWTs in these bands. One current frequency of interest is in the 94 GHz range which requires an external magnetic field of ˜3.4 Tesla in order for the gyroklystron to operate. The most efficient means for generating this magnetic field level is through the use of superconducting magnets. With the continued development of high temperature superconductors (HTS) and a corresponding progress in cryo‐cooler technology, it is now possible to consider utilizing cryo‐cooled HTS in this application. Operating in the 10 K to 25 K range with a cryo‐cooler, we are currently developing a prototype cryogen free HTS magnet system for this radar application.

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Section: D1: Gordon Roesleq Boovlllen and Hamilton Incmentioning

confidence: 99%