Hybrid Log Spiral With Loop Antenna

We fabricated a hybrid antenna that consists of a logarithmic spiral and loop antenna. The antenna was designed to detect electromagnetic (EM) noise and be broadband in the range of 1 MHz to 1 GHz. This style of antenna can be located in buildings and passageways in inaccessible areas for the purpos...

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Bibliographic Details
Main Authors: Tesny, Neal, Litz, Marc
Format: Report
Language:English
Subjects:
BALUM
BROADBAND
BUILDINGS
CODING
DEGRADATION
Electrical and Electronic Equipment
ELECTROMAGNETIC RADIATION
FABRICATION
FEKO ANALYSIS
HYBRID SYSTEMS
INFORMATION SURVEILLANCE
LOOP ANTENNAS
MATHEMATICAL MODELS
MONITORING
PREDICTIONS
SHIELDING
SPIRAL ANTENNAS
THRESHOLD EFFECTS
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Description
Summary:We fabricated a hybrid antenna that consists of a logarithmic spiral and loop antenna. The antenna was designed to detect electromagnetic (EM) noise and be broadband in the range of 1 MHz to 1 GHz. This style of antenna can be located in buildings and passageways in inaccessible areas for the purpose of shielding integrity surveillance and life cycle shielding degradation monitoring, and can be used as permanent fixtures that detect critical threshold levels of unwanted EM radiation. The antenna structures were modeled with the FEKO EM numerical code and were also experimentally characterized in the laboratory. The measurements compare well with the predictions from the modeling. This report presents the detailed results of the design, and the FEKO analysis and the measured results. The original document contains color images.