US 12,283,400 B2
Dielectric structure, a method of manufacturing thereof and a fire rated radio frequency cable having the dielectric structure
Asaad Elsaadani, Meriden, CT (US); Drausio Castro, Taboão Da Serra (BR); Joel Cacopardo, Hamden, CT (US); Thomas Kuklo, Denver, NC (US); and Mihirraj Joshi, Middletown, CT (US)
Assigned to RFS Technologies, Inc., Meriden, CT (US)
Filed by RFS Technologies, Inc., Meriden, CT (US)
Filed on Jul. 18, 2019, as Appl. No. 16/515,542.
Prior Publication US 2021/0020327 A1, Jan. 21, 2021
Int. Cl. H01B 3/12 (2006.01); H01B 7/02 (2006.01); H01B 7/295 (2006.01); H01B 11/18 (2006.01)
CPC H01B 3/12 (2013.01) [H01B 7/0275 (2013.01); H01B 7/295 (2013.01); H01B 11/1813 (2013.01); H01B 11/1834 (2013.01)] 12 Claims
OG exemplary drawing
 
5. A radio frequency coaxial cable, comprising:
a first conductor;
a second conductor provided around the first conductor having a separation therewith;
an insulating material provided within the separation between the first conductor and the second conductor; the insulating material including:
a first section comprising a first dielectric material having a cylindrical shape, the first section comprising a plurality of recesses respectively embedded in an outer surface of the first section, each of the plurality of recesses is exposed and spaced apart from one another in the outer surface of the first section;
a second section comprising a second dielectric material and provided on an outer surface of the first section, thereby forming a cylindrical coaxial structure together with the first section;
wherein the second dielectric material of the second section is more flexible than the first dielectric material of the first section; and
wherein the second section comprises elements of an organic material located in the plurality of recesses,
wherein the elements of the organic material are spaced apart from one another in the plurality of recesses, thereby preventing a short circuit between the first and second conductors in the event the organic material is charred.