Communications: radio wave antennas – Antennas – Including magnetic material
Patent
1974-12-16
1976-03-23
Lieberman, Eli
Communications: radio wave antennas
Antennas
Including magnetic material
336 69, H01Q 708
Patent
active
039463974
ABSTRACT:
An improved inductor arrangement suitable for a wide variety of applications, but particularly advantageous for use in the design of ferrite antenna structures intended to operate at the relatively higher frequencies. The disclosed inductor arrangement includes a spiral inductor or coil divided into a plurality of wire segments, respective pairs of which are interconnected by individual capacitance elements to form a plurality of series-resonant circuits at a particular frequency or range of interest. The capacitance elements may be provided in the form of discreet components or by a suitable electro-deposition process in the interests of further optimizing size factor. The number of individual wire segments and resonating capacitance elements may be selected to provide a given terminal impedance for the inductor arrangement within a certain limited design range.
REFERENCES:
patent: 3427624 (1969-02-01), Wanselow et al.
patent: 3573840 (1971-04-01), Couillou et al.
patent: 3721989 (1973-03-01), Christensen
Gillman James W.
Lieberman Eli
Motorola Inc.
Southard Donald B.
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