Abstract The present invention comprises substantially vertical electromagnetic radiators which are arranged to have the maximum current mode at the top of one or more radiators to direct the wave energy along the ground plane without radiating energy directly towards the sky, which are . . . as well known . . . reflected back to Earth to cause interference. The invention also includes means comprising a single or multiple wavelength vertical antenna whereby the second 90 electrical degrees of each 180 electrical degrees is shielded from radiation to avoid high angle radiation. While the aforesaid means provides wave concentration along the ground towards the horizon, additional arrangement of radiators are associated to concentrate this ground wave energy in less than 360* from the point of transmission as desired.
In the field of electromagnetic wave radiation, a wave antenna having a physical length of substantially one-half wavelength at the resonant operating frequency and connectable to a source of electromagnetic wave energy to be radiated into space, said antenna extending upwardly at an angle from the vertical to a supporting means with respect to the existing ground one-quarter wavelength, then extended downwardly onequarter wavelength, said two one-quarter wavelength sections separated at ground level less than 180-degrees of a circle with the supporting means within the circle to increase the field strength of the electromagnetic wave transmission within the area encompassed by the said less than 180-degrees, each of said onequarter wavelength section of said antenna having maximum current at their tops to avoid radiating energy except in the vicinity of the horizon.
Claim 2
Dependent Claim
132 words
In the field of electromagnetic wave radiation, a wave antenna having a physical length of substantially one-half wavelength at the resonant operating frequency and connectable to a source of electromagnetic wave energy to be radiated into space, said antenna extending upwardly at an angle from the vertical to a supporting means with respect to the existing ground one-quarter wavelength, then extended downwardly onequarter wavelength, said two one-quarter wavelength sections separated at ground level less than 180-degrees of a circle with the supporting means within the circle to increase the field strength of the electromagnetic wave transmission within the area encompassed by the said less than 180-degrees, each of said onequarter wavelength section of said antenna having maximum current at their tops to avoid radiating energy except in the vicinity of the horizon.
Claim 3
Dependent Claim
43 words
An antenna according to claim 1, wherein the radiation is the product of phased energies from two or more pairs of radiators to produce wave propogation along the ground plane and concentrated at least in one direction and substantially at the horizon area.