Millimeter-Wave Exposure System Augmentation

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Abstract:

Dielectric lenses, a pedestal, and a remote-controlled positioner were designed, constructed, delivered, and installed for the Armstrong LaboratoryOEDR millimeter-wave facility which consists of a 75-W 35-GHz transmitter, a 50-W 94.5-GHz transmitter and a millimeter-wave anechoic chamber. Gaussian optics was used in the lens design and concentric sets of grooves were used to optimize the transmission characteristic of the lenses by impedance matching. With the lenses, power densities on the order of 1 Wsq. cm. can be produced for a spot with a 3-cm 1.18 in. diameter. A pedestal system was designed and constructed which could support specimens and be millimeter-wave transparent. The remote-controlled positioner is capable of positioning a millimeter-wave field probe within a 1 m X 0.5 m X 0.5 m 3.28 ft X 1.69 ft X 1. 69 ft volume. The system is also capable of feeding back to a remote computer the position of the probe.

Author(s):
Shelton, Wesley W.
Author Organization(s):
GEORGIA INST OF TECH ATLANTA BIOENGINEERING CENTER
Descriptive Note:
Final rept. Jun 1989-Jun 1990
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AL*-TR-1991-0056
Contract/Grant Number(s):
F33615-87-D-0626
Task Number(s):
01
Project Number(s):
7757
Monitor Series:
TR-1991-0056, AL*
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.6.1_Assess Compliance with Guidance; JCA_5.6_Monitor; JCA_1.2.6_Concepts; JCA_1.2.7_Experimentation; JCA_5.3_Planning
Modernization Areas:
Directed Energy
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*PROBES, *EXPOSURE(GENERAL), *MILLIMETER WAVES, *DIELECTRICS, AUGMENTATION, MOUNTS, POWER, ANECHOIC CHAMBERS, REMOTE SYSTEMS, LENSES, KA BAND, FACILITIES, COMPUTERS, IMPEDANCE MATCHING, DENSITY, POSITION(LOCATION)
Field(s)/Group(s):
Test Facilities, Equipment and Methods, Optics, Radiofrequency Wave Propagation
Keyword(s):
*DIELECTRIC LENSES, *REMOTE POSITIONERS, GAUSSIAN OPTICS, PE62202, WUAL7757011G
Report Date:
1991 Nov 01