Abstract: A dipole element insulator integrally formed of a substantially rigid, yet somewhat resilient, synthetic plastic material has opposed dipole element rod supporting arms to which inner ends of the element rods are pivotally supported to enable their swinging towards and away from a supporting boom across which the insulator is fixed, outer marginal peripheral portions of which insulator arms are formed with U-shaped through slots defining outwardly-extending U-shaped marginal arm portions the outer or base sides of which are provided with ramps leading to central locking slots operative as detents for removably retaining the respective dipole element rods in their extended positions of use.

Abstract: A log periodic VEE antenna particularly useful for space craft including a central mast and dipole antenna elements which are collapsible into a compact configuration for transportation purposes and which are deployable in spring-like fashion when released from their confinement. In one embodiment, the antenna elements themselves are semi-circular elements and confined in a bent position in a suitable container for transportation and which, when removed from the container, spring into deployed position. In another embodiment, the dipole elements are flexible wire with a spine member having a semi-circular spring member bent when the antenna is collapsed and which, when released from its confinement deploys the wire elements. The semi-circular elements besides having a deployment function also give rigidity to the antenna when deployed.

Abstract: A portable and collapsible supporting structure for a multi-element quad antenna comprising a horizontal telescopic boom upon which are mounted several sets of folding spreader arms radiating from the boom, each arm being pivotally connected to it. Each set of spreader arms can be immobilized in a common angular position with the boom, whereby several quadrangular loops may be hung between said spreader arms. The boom is supported by a multi-element mast. The mast itself rests on the hollow cylindrical base which doubles as a sheath for the storage and transporation of the various dismantled elements of the structure.

Abstract: A single axis vehicle for an antenna mast can be positioned by means of three hinged, legs held against the equipment by means of chains whose effective length is individually adjustable by means of travelling nut-spindle assemblies to orient the mast by matching the hinge angle of each leg to the terrain.

Abstract: A dimensionally stable antenna unit is maintained in a stable vertical position during mobile operation of the radio of which the antenna unit is a part and accordingly improves the transmitting as well as receiving characteristics of the overall radio system.

Abstract: A composite antenna arrangement is secured to a foundation, or pad, via a multi-element force absorbing truss-like pedestal. The pedestal provides elevation and azimuth rotational axes for selecting and adjusting the reflector pointing orientation, and permits job site reflector installation without requiring a lifting crane or the like.

Abstract: A relatively low frequency linear element antenna characterized by its lightweight construction, relatively wide band width, and elastic strain energy deployment capability. The antenna has a plurality of slender electrical conductors such as wires forming radiating elements secured to a supporting tube with the conductors extending lengthwise of and spaced about the tube wall and electrically joined at the base end of the tube in such a way that the antenna has the same radiation characteristic as a conventional cylindrical antenna of the same diameter as the tube. The base ends of the conductors are gathered for connection to the center conductor of a coaxial antenna feed line to provide an impedance match between the antenna and coaxial line. The antenna supporting tube may comprise a thin-walled, resiliently flexible, strain energy deployable tube to permit contraction of the antenna to a folded or coiled packaged configuration and antenna deployment by elastic strain energy stored in the contracted tube.

Abstract: A personal paging device is housed in a case which has one dimension (length) longer than its width or thickness, and a clip is affixed to a side on a swivel between the ends of the length dimension, which allows the device to be worn on the person in a vertical or a horizontal posture. A radio receiving antenna is carried on a flexible dielectric sheet within the casing, and radio components are enclosed within that sheet. A pair of orthogonally-related antenna loops can be provided on the dielectric sheet. The swivel clip can be arranged to cooperate with these or other antennas in a circular-polarization antenna system, such that in one orientation one or the other of the antennas will be detuned.

Abstract: In an antenna for television, radio or the like, including antenna elements radiating from a boom, a self-locking hinge intermediate the ends of an antenna element for permitting folding of the element for convenient boxing, or the like and for permitting unfolding and elongation of the element for use; the hinge comprising a hinge connection that is spaced from one side of the element and a snap latch that is spaced from the opposite side of the element, thereby rigidifying and strengthening the hinge connection.