Electrically small antenna
First Claim
1. An antenna system for transmitting an electromagnetic signal through a medium, comprising:
- a loop antenna with a loop current and including;
an E field transducer that generates an E field;
an H field transducer that generates an H field, wherein the E and H fields are orthogonal in space and have at least one of a magnitude and phase relationship that is matched to an intrinsic impedance of a medium to generate a propagating wave,wherein in an insulating medium the loop current lags an E field plate voltage by 90°
to produce in phase E and H fields, and in a conductive medium current is applied to the loop with a 135°
phase lag with respect to a voltage across the E field plates, the H field is generated by the current component and leads current by 90°
.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna system, with a loop antenna and a loop current, is provided for transmitting an electromagnetic signal through a medium. The loop antenna has an E field transducer that generates an E field, and an H field transducer that generates an H field. The E and H fields are orthogonal in space and have at least one of a magnitude and phase relationship that is matched to an intrinsic impedance of a medium to generate a propagating wave. In an insulating medium the loop current lags an E field plate voltage by 90° to produce in phase E and H fields. In a conductive medium current is applied to the loop with a 135° phase lag with respect to a voltage across the E field plates. The H field is generated by the current component and leads current by 90°.
-
Citations
22 Claims
-
1. An antenna system for transmitting an electromagnetic signal through a medium, comprising:
-
a loop antenna with a loop current and including; an E field transducer that generates an E field; an H field transducer that generates an H field, wherein the E and H fields are orthogonal in space and have at least one of a magnitude and phase relationship that is matched to an intrinsic impedance of a medium to generate a propagating wave, wherein in an insulating medium the loop current lags an E field plate voltage by 90°
to produce in phase E and H fields, and in a conductive medium current is applied to the loop with a 135°
phase lag with respect to a voltage across the E field plates, the H field is generated by the current component and leads current by 90°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification