Miniature antenna with separate sequentially wound windings
First Claim
1. An antenna comprising a plurality of sequentially wound separate conductive windings on a magnetic core, each winding being connected in series with a corresponding capacitor to form a plurality of series circuits, the series circuits being connected in parallel with each other in parallel aiding direction.
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Abstract
The invention is a miniature antenna useful for portable radios, pocket pager receivers, etc. A plurality of sequentially wound windings is located on a ferrite core, each winding being connected in series with a capacitor. The resulting series circuits are connected in parallel with each other. Preferably the resonant frequency of each series circuit is approximately 80% to 90% of a receive frequency. An external tuning capacitance resonates with the net inductance of the antenna at the receive frequency. The antenna exhibits low hand effect while maintaining output EMF.
31 Citations
22 Claims
- 1. An antenna comprising a plurality of sequentially wound separate conductive windings on a magnetic core, each winding being connected in series with a corresponding capacitor to form a plurality of series circuits, the series circuits being connected in parallel with each other in parallel aiding direction.
Specification