Design of an ELF Loop Antenna Receiver

Design of an ELF Loop Antenna Receiver

A low noise figure ELF receiver was designed and fabricated to measure the noise characteristics of the flexible loop antenna towed from a submarine. The receiver includes a degaussing circuit to control the antenna core flux density in the presence of the geomagnetic field. A noise figure analysis...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Nackoney, Ogden G
Format: Report
Sprache:eng
Schlagworte:
ANTENNA FEEDS
COILS
COPPER
DEGAUSSING
Electrical and Electronic Equipment
EXTREMELY LOW FREQUENCY
FREQUENCY RESPONSE
GAIN
GLASS TEXTILES
LOOP ANTENNAS
MAGNETOSTRICTION
MECHANICAL PROPERTIES
NOISE(RADIO)
OPERATIONAL AMPLIFIERS
POLYETHYLENE PLASTICS
PREAMPLIFIERS
RESPONSE
SUBMARINE ANTENNAS
TOWED BODIES
TOWING CABLES
TRANSFORMERS
TRANSMISSION LINES
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Beschreibung
Zusammenfassung:A low noise figure ELF receiver was designed and fabricated to measure the noise characteristics of the flexible loop antenna towed from a submarine. The receiver includes a degaussing circuit to control the antenna core flux density in the presence of the geomagnetic field. A noise figure analysis is presented for matching the inductive source impedance of the flexible loop antenna to a low noise amplifier. (Author)