X-Band Beacon Reference Cavities

The present status of X-band beacon of reference cavities is summarized. There are now available two types, the 1Q22 series made by Westinghouse, and the 1Q26 made by G.E. Both have excellent stability against shock, vibration, and handling. The higher unloaded Q and loaded Q of the 1Q22 gives it a...

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Bibliographic Details
Main Author: Smullin, L D
Format: Report
Language:English
Subjects:
ATI COLLECTION
ATI-24400
CAVITIES
CONDUCTIVITY
CRYSTALS
FREQUENCY
GENERATORS
OPERATION
SHOCK
STABILITY
TOLERANCE
X BAND
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Summary:The present status of X-band beacon of reference cavities is summarized. There are now available two types, the 1Q22 series made by Westinghouse, and the 1Q26 made by G.E. Both have excellent stability against shock, vibration, and handling. The higher unloaded Q and loaded Q of the 1Q22 gives it a better figure of merit than the 1Q26. However, the accuracy required in the phase of the 4:1 standing wave introduced by the crystal load and the tolerance in the location of the conductance plane of the cavity make the actual frequency errors greater than those expected for operation between matched load and generator.