Abstract: An electrical cable (22, 28) with a sheet material (10) used as air electrical shield having a continuous metallic foil (12) having a plurality of transverse folds (14). The transverse folds (14) are flattened to form a plurality of transverse overlaps (16) of the continuous metallic foil (12) such that the elongation of the sheet material (10) exhibits a nonlinear yield behavior upon the application of longitudinal force (42). In a preferred embodiment, the transverse folds (14) form a plurality of pairs of faces (60, 62) with an interior angle (64) of not more than three degrees. A cable (22, 28) is formed by securing the sheet material (10) to at least one insulation (26) encased conductor (24). The sheet material (10) is formed by corrugating a sheet of continuous metallic foil (12) to form a plurality of flattened transverse folds (14) to form a plurality of continuous overlaps (16).

Abstract: An electrical ribbon cable containing a plurality of longitudinally extending, individually insulated wire pairs being twisted together. An insulator is bonded to the plurality of wire pairs during only a portion of each individual twist of the wire pairs. The insulator holds the plurality of wire pairs in a fixed planar relationship. The wire pairs have a uniform twist period and have transversely aligned crossover points between wire pairs. The resultant cable combines the desirable electrical characteristics of a twisted pair cable with the desirable connectability characteristics of a parallel lay electrical ribbon cable.

Abstract: A fully shielded flexible ribbon cable having transmission line electrical characteristics and flexible ribbon cable mechanical characteristics capable of easy mass termination. The cable has a plurality of circular uniformly spaced signal conductors lying in a single plane encased in insulation having an effectively uniform dielectric constant of not more than 3.0. A sheet conductor is bonded to the insulation providing both transverse and longitudinal electrical continuity. The ratio of the diameter of the signal conductors to the distance between centers of the signal conductors is between 0.16 and 0.42. The ratio between the thickness of the cable at the inner surface of the sheet conductor to the distance between centers of the signal conductors is not more than 1.5.

Abstract: A metal clad laminate of at least about 20 mils dielectric thickness containing a low-loss dielectric soft polymeric material and at least two layers of glass cloth reinforcement, wherein the separation between the metal cladding and the nearest layer of glass cloth is at least about 7 mils of the soft polymeric material.

Abstract: Microstrip antenna having one or more arrays of resonant dipole radiator elements. The radiator elements have an E coordinate dimension of approximately ##EQU1## A feed line made up of similar, series-connected, semiresonant, approximately half-wave sections distributes energy to and provides the desired phase relationship between the radiator elements. The radiator elements are conductively joined to alternate sides of the feed line at successive junctions of the half-wave sections to provide an array, with the feed line being electrically coupled to each radiator element in the array along an edge of the radiator element that intersects its E coordinate. The H coordinates of the radiator elements lie generally along a straight line through the radiator elements of the array. The radiator elements and feed line sections are in a broad surface which is uniformly spaced from a ground element by a dielectric sheet.

Abstract: Microstrip antenna having one or more arrays of resonant dipole radiator elements. The radiator elements have an E coordinate dimension of approximately .lambda.o/2.sqroot. .epsilon..sub.r .mu..sub.r. Bridge elements directly and conductively join adjacent pairs of radiator elements to provide energy distribution and the desired phase relationship. The radiator elements and bridge elements are in a broad surface which is uniformly spaced from a ground element by a dielectric sheet.