A BROAD-BAND ACTIVE ANTENNA FOR ELF MAGNETIC-FIELDS

被引：0
|
作者：
SUTTON, JF
SPANIOL, GC
机构：
来源：
PHYSICS ESSAYS | 1993年 / 6卷 / 01期
关键词：
ANTENNA; ACTIVE ANTENNA; BROAD-BAND ANTENNA; ELF ANTENNA; MAGNETIC ANTENNA; EARTH-IONOSPHERE CAVITY; NEGATIVE IMPEDANCE; BLACK HOLE;
D O I：
10.4006/1.3029038
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A unique broadband ULF-ELF magnetic antenna is described. Active circuitry is employed to introduce a negative impedance that combines with the wire resistance, the distributed winding capacitance, and the inductance of a physically small search coil to produce an antenna with a very small impedance. The result is increased search coil current and an enhanced dipole-plane wave field interaction, which greatly increases the effective area of the antenna, independent of frequency- a ''black bole'' antenna.
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页码：52 / 59
页数：8
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