Dual slot antenna device

Claim 2

A dual slot antenna assembly comprising: a pair of laterally spaced-apart conductive elements electrically isolated with respect to one another, said conductive elements defining a pair of radiation slots longitudinally spaced-apart a predetermined distance approximately equal to one-half wavelength at the anticipated operating frequency of said assembly, each of which slots emanates radiation therefrom such that the radiation patterns developed are in substantially the same direction, said slots being of greater length than the spacing between said conductive elements; and electrical signal feed means connected with said conductors for electrically exciting both of said slots, said electrical signal feed means including a plurality of leads connected to an edge of one of said conductive elements adjacent one of said slots and spaced-apart at intervals at least substantially equal to one wavelength at said anticipated operating frequency.

Claim 3

An assembly according to claim 1 including nonconductive means for supporting said laterally spaced-apart conductive elements, said conductive elements and nonconductive means each comprising part of a single sheet of dielectric material metallically cladded on opposite sides thereof.

Claim 4

A dual slot antenna assembly comprising: a first substantially cylindrical conductor, the axial length of which is approximately equal to one-half wavelength at the anticipated operating frequency of said assembly; a second substantially cylindrical conductor, the axial length of which is at least equal to the axial length of said first conductor, said second conductor being positioned concentrically within and radially spaced from said first conductor and electrically isolated with respect thereto so as to define a pair of circumferential slots spaced one-half wavelength apart at said anticipated operating frequency and providing independent radiation patterns emanating in the same direction; and electrical signal feed means connected with said conductor for electrically exciting both of said slots, said electrical signal feed means including a plurality of leads connected to an edge of said first conductor adjacent one of said slots and circumferentially spaced-apart at intervals at least substantially equal to one wavelength at said anticipated operating frequency.

Claim 5

A dual slot antenna assembly comprising: a first substantially cylindrical conductor, the axial length of which is approximately equal to one-half wavelength at the anticipated operating frequency of said assembly; a second substantially cylindrical conductor, the axial length of which is at least equal to the axial length of said first conductor, said second conductor being positioned concentrically within and radially spaced from said first conductor and electrically isolated with respect thereto so as to define a pair of circumferential slots spaced one-half wavelength apart at said anticipated operating frequency and providing independent radiation patterns emanating in the same direction; and electrical signal feed means connected with said conductor for electrically exciting both of said slots, said electrical signal feed means including a plurality of leads connected to an edge of said first conductor adjacent one of said slots and circumferentially spaced-apart at intervals at least substantially equal to one wavelength at said anticipated operating frequency.

Claim 6

An assembly according to claim 3 including nonconductive means for supporting said first and second conductors, said cOnductors and nonconductive means each comprising part of a single sheet of dielectric material metallically cladded on opposite sides thereof.