Development of a VHF Multiturn Loop Antenna for Seismic Sensor Systems.

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Abstract:

The multiturn loop antenna is evaluated as a low profile replacement for the 14 wavelength monopole presently in use with VHF seismic sensor systems. It is found that for some conditions of operation the pattern level of the loop may exceed that of the 14 wavelength monopole. The Wheeler method of efficiency measurement is developed as an aid in evaluating the multiturn loop. Low angle antenna patterns are shown for the various antennas tested. Experimental results of parametric variations of the multiturn loop are included. A technique for earth permittivity measurements and experimental results are described. Author

Author(s):
Bohley, P. ; Newman, E. H.
Author Organization(s):
OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB
Descriptive Note:
Final rept. (Volume 1),
Pagination:
0076

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ESL-3281-2
Contract/Grant Number(s):
DAAG39-72-C-0041
Project Number(s):
HDL-117215
 Subject Terms
Communities of Interest:
Sensors
Descriptor(s):
(*SEISMOMETERS, *LOOP ANTENNAS), VERY HIGH FREQUENCY, DETECTORS, PROPAGATION, ANTENNA RADIATION PATTERNS, ELECTRICAL IMPEDANCE, EFFICIENCY
Field(s)/Group(s):
Seismic Detection and Detectors
Report Date:
1973 Mar 01