An antenna 10 comprises at least a first pair 12 of elongate radiating elements and a second pair 14 of elongate radiating elements. Each pair comprises a first element 12.1 and a second element 12.2. Each element has a feed end 12.11 and a distal end 12.12. The first and second elements of each of the at least first pair and second pair have their respective feed ends 12.11, 12.21 in juxtaposition relative to one another and extend in diverging relationship relative to one another in a direction from their feed ends towards their distal ends. The at least first and second pairs are electrically connected in parallel. In some embodiments the elements may diverge exponentially. The invention also relates to antennas which may be packaged in at least partially knock-down form to be assembled or deployed conveniently at a user site.

An antenna 10 comprises at least a first pair 12 of elongate radiating elements and a second pair 14 of elongate radiating elements. Each pair comprises a first element 12.1 and a second element 12.2. Each element has a feed end 12.11 and a distal end 12.12. The first and second elements of each of the at least first pair and second pair have their respective feed ends 12.11, 12.21 in juxtaposition relative to one another and extend in diverging relationship relative to one another in a direction from their feed ends towards their distal ends. The at least first and second pairs are electrically connected in parallel. In some embodiments the elements may diverge exponentially. The invention also relates to antennas which may be packaged in at least partially knock-down form to be assembled or deployed conveniently at a user site.

An antenna array includes a printed circuit board including printed circuit board elements circumferentially disposed at locations on a surface of the printed circuit board. The printed circuit board elements are disposed in opposing pairs at diametrically opposite locations and include a first member and a second member. The first member intersects the second member which is curved. The antenna array can be an ultra-ultra wide band (UUWB) wavelength scaled array (WSA) tightly coupled dipole array (TCDA) active electronically scanned array (AESA) aperture.

An antenna array includes a printed circuit board including printed circuit board elements circumferentially disposed at locations on a surface of the printed circuit board. The printed circuit board elements are disposed in opposing pairs at diametrically opposite locations and include a first member and a second member. The first member intersects the second member which is curved. The antenna array can be an ultra-ultra wide band (UUWB) wavelength scaled array (WSA) tightly coupled dipole array (TCDA) active electronically scanned array (AESA) aperture.

An FM broadcasting antenna is described having a mast, a pair of forward-facing elements, and a pair of rear-facing elements. The antenna makes use of angles between the antenna elements and the mast, a multi-diameter feed line, a multi-diameter center pin, and mounting points of a strap extending between at least one of the forward-facing elements, at least one of the rear-facing elements and the center pin, for achieving desired broadband and performance characteristics.

An FM broadcasting antenna is described having a mast, a pair of forward-facing elements, and a pair of rear-facing elements. The antenna makes use of angles between the antenna elements and the mast, a multi-diameter feed line, a multi-diameter center pin, and mounting points of a strap extending between at least one of the forward-facing elements, at least one of the rear-facing elements and the center pin, for achieving desired broadband and performance characteristics.

Provided are embodiments for a system and a method for operating an omnidirectional antenna. Embodiments include operating a first antenna that includes a first input configured to receive an input signal, a plurality of subarrays configured for transmitting and receiving signals, and a ground plane of the first antenna. Embodiments also include operating a second antenna coupled to the first antenna that includes a second input configured to receive an input signal, a plurality of arms configured for transmitting and receiving signals, a ground plane of the second antenna, and coupling the ground plane of the first antenna and the ground plane of a second antenna.

A tag antenna comprises a feeder comprising a first conducting wire and a second conducting wire; a first electric conductor, a second electric conductor, and a third electric conductor that are elongated; a first connecting conductor; and a second connecting conductor. The first connecting conductor is separately connected to lower ends of the first electric conductor, the second electric conductor, and the third electric conductor; the second connecting conductor is connected to at least one of the first electric conductor, the second electric conductor, and the third electric conductor; and the first connecting conductor and the second connecting conductor are spaced apart, the first conducting wire of the feeder is connected to the first connecting conductor, and the second conducting wire is connected to the second connecting conductor. The embodiments of the present disclosure further provide a passive temperature detection apparatus.

An antenna is provided which includes a base piece, a first arm, and a second arm. The first arm includes a first section extending vertically from the base piece. The first arm also includes a second section connected to the first section. The second section vertically extends orthogonal from the first section. The first arm further includes a third section extending linearly from the second section. The third section is bent at an angle out of the vertical plane. The second arm includes a first section vertically extending from the base piece. The second arm also includes a second section connected to the first section. The second section angularly extends from the first section in the vertical plane. The second arm further includes a third section extending linearly from the second section. The third section is bent at an angle out of the vertical plane.

An antenna is provided which includes a base piece, a first arm, and a second arm. The first arm includes a first section extending vertically from the base piece. The first arm also includes a second section connected to the first section. The second section vertically extends orthogonal from the first section. The first arm further includes a third section extending linearly from the second section. The third section is bent at an angle out of the vertical plane. The second arm includes a first section vertically extending from the base piece. The second arm also includes a second section connected to the first section. The second section angularly extends from the first section in the vertical plane. The second arm further includes a third section extending linearly from the second section. The third section is bent at an angle out of the vertical plane.