Abstract: An omnidirectional antenna with minimal gain variation over the 360.degree. azimuth. A plurality of biconical antennas are stacked vertically. A radome covering the antenna and cylindrically encasing the antenna supports the stack of biconical antennas. A bundle of transmission lines is helically wound about the cylindrical periphery of the biconical antennas, preferably at an angle between 37.degree. and 41.degree.. Each biconical antenna is formed by two truncated flared apart reflecting surfaces that are connected by a nonconductive spacing collar between their truncated portions.

Abstract: An antenna having a central axis is supported on a supporting member which in turn is supported on an azimuth gimbal. The antenna and the supporting member are rotatable around an elevation axis perpendicular to the central axis gimbal is supported on a base and is rotatable around an azimuth axis perpendicular to the elevation axis. A first gyro having an input axis parallel to the elevation axis is secured to the supporting member, and a second gyro having an input axis perpendicular to both the central axis and the elevation angle axis is secured to the supporting member. An accelerometer is provided for outputting a signal representative of an inclination angle of the central axis relative to a horizontal plane. An azimuth transmitter is provided for outputting a signal representative of a rotation angle of the azimuth gimbal around the azimuth axis.

Abstract: A deployable satellite antenna system permits an antenna with elevation control to be mounted. The elevation control assembly for the antenna system has a base with two parallel tracks and a slider that moves along these tracks. The antenna is connected to a support frame pivotally attached to the slider. Pivot arms are pivotally attached between the reflector and the base adjacent to the parallel tracks. The elevational position of the antenna is adjusted by a motor that controls the position of the slider along the parallel tracks between a stowed position in which the antenna is stowed facing the vehicle and a deployed position in which the antenna is rotated to a maximum elevational angle.

Abstract: A mobile communication terminal or telephone comprising a handheld main housing incorporating a digital keypad, a speaker and a microphone, and having a planar radiator antenna. The antenna is hingedly-attached to an extension arm element which, in turn, is hingedly-attached at the top of the main housing. During use, the antenna is pivoted above and away from the head of the user by a sufficient distance to significantly reduce or remove the exposure of the user to transmitted RF power of sufficient density to pose a health danger.

Abstract: A microwave guide interface extends between a rear surface of a microwave antenna reflector and a facing surface of a base plate. An interconnect member having a ball surface extends rearwardly from the rear of the reflector. A second interconnect member having a ball-receiving socket extends forwardly from a facing surface of the base plate. A spring clamp is attached to a periphery of the base plate and includes a yoke coacting with a strike hook on a circular rib or on separate lugs extending from the rear of the reflector for cinching up the socket into abutting contact with the mating ball surface. A peripheral O-ring extends between peripheral surfaces of the members allows tilting of the assembly such that assembly and alignment can be made over a fairly wide range of angular tolerances of the base plate and reflector.

Abstract: Improved marine VHF radio antennas systems are provided that can be installed on sailboats to position a whip antenna or other radiation unit aloft from the boat deck, even while underway. The antenna system includes an elongated flexible plastic extrusion that internally carries the coaxial cable for the radiation unit and has a longitudinal channel accessed through a side slit. The radiation unit when slideably installed on the boat's backstay is then carried aloft on the backstay as the extrusion is threaded on it via the side slit until the extrusion channel is completely filled by the backstay. The system is completed by electrical connection of the lower end of the coaxial cable to a hand held, battery operated transceiver or other electronic device.

Abstract: A mounting bracket for mounting a Global Positioning Antenna to the fusel of a fixed wing aircraft. The apparatus comprises a rectangular shaped mounting plate having a cylindrical shaped member positioned in the center of the mounting plate and extending from its bottom surface. There is an aperture extending through the cylindrical shaped member and the plate through which the antenna cable passes with the cable connecting the antenna to the receiver. The antenna mounting bracket is secured to the aircraft by inserting the cylindrical shaped member into the sextant port of the airframe so that the bottom portion of the cylindrical shaped member including a pinning aperture extends into the interior the aircraft. A quick release pin is inserted in the pinning aperture to tightly secure the antenna to the airframe.

Abstract: A plurality of insulators are disposed in holes, respectively, defined in a metal plate of a waveguide of a circularly-polarized-wave flat antenna. Each insulator has a through-hole and a protrusion. The through-hole extends from the outside of the metal plate to the inside of the waveguide. The protrusion protrudes outward beyond the metal plate. The protrusion has a groove which is open to the outside. Curl antenna elements each have a shaft portion, an arm portion, and a curl portion. The shaft portion is fitted in the through-hole of the insulator and partly protrudes outward from the metal plate. The arm portion extends from the protruded end of the shaft portion. The curl portion is in a substantially helical shape and connected to the top of the arm portion.

Abstract: The present invention includes an improved antenna mounting apparatus for mounting a conventional antenna to a mounting structure. The antenna mounting apparatus including a pair of vertically spaced apart arms having aligned holes therethrough and a base connected to and extending between the arms. A mounting device for mounting the bracket to the mounting structure is provided with two O-ring shaped insulating members each adapted to be received in a respective one of the aligned holes in the arms; antenna connection device adapted to engage the antenna and secure the antenna to one of the spaced apart arms. A cable connection device is provided for connecting an electrical cable to the apparatus. Interconnection device are adapted to engage the antenna connection device and the cable connection device such that the antenna connection device, the interconnection device and the cable connection device all form a single structural unit extended through the aligned holes of the mounting bracket arms.

Abstract: A capacitively coupled high frequency broad-band antenna comprising a stub having a tubularly shaped lower end that is capacitively coupled to a first terminal element for the center conductor of a transmission line. The outer conductor of the transmission line is connected to a base support element which is accurately spaced from the first terminal element by a dielectric spacer element; and the three elements are encapsulated and hermetically sealed by a plastic molded housing.

Abstract: A low cost antenna assembly is disclosed which is formed from a flexible wire and a pair of suction cups for supporting the wire in a substantially linear fashion. A feed line couples the wire antenna to a receiver. Further, a method for fabricating the antenna is disclosed.

Abstract: An arrangement for accommodating telescoping masts on mobile carriers comprises devices for selectively swivelling the mast into a transport position or an operating position for support with respect to the ground surface for the raising of the mast into its operating position. The mast swivel bearing is provided on the carrier so that it can be adjusted or adapted for the respective adaptation of the center of gravity of the mast with respect to the mobile carrier, with respect to the transport position with vehicle wheels resting on the ground, and relative to the starting operating position of the mast with carrier supports resting on the ground surface.

Abstract: Communications vehicle including a roof-mounted satellite dish that is effectively and efficiently supported by a combination of structural components so as to allow for the maximization of operator compartment space in the vehicle without a concomitant increase in vehicle dimensions. A plurality of racks for housing electronics, access to which is required from the vehicle operator compartment, are designed as structural supports, in combination with other structural components, for the satellite dish and aimer assembly. The combination transmits the satellite dish and aimer assembly load through the structure and finally to the ground.

Abstract: A mounting assembly including a casing having an outer surface attached to a TVRO antenna and having an inner surface and at least one first guide slot positioned on the inner surface of the casing. An inner tube is located inside the casing and has portions which extend out of the casing for attaching to the mounting pole. At least one second guide slot is formed through the inner tube. One of the first or second guide slots is non-linear. The casing is rotated by a spider-like mechanism having drive arm having a first end nested in the first guide slot, a body passing through the second guide slot. A leadscrew passes through the spider like mechanism and a motor coupled to one end of the leadscrew turns the leadscrew causing the spider like mechanism to move vertically along the leadscrew, which in turn causes the casing to rotate with respect to the inner tube.

Abstract: An antenna and mounting arrangement include a mounting portion attached to a rear of a dish portion of the antenna. The mounting portion may be affixed to a pole and may be positioned at any point along the length of the pole before tightening in position by way of bolts. A length of the mounting portion insures that when secured in position the dish portion of the antenna will not contact the pole. Thus, a plurality of antennas may be conveniently mounted on a single pole.

Abstract: A cover for the base element of a magnetically mounted vehicle antenna in the form of a bag having a closure is provided to protect the finish of a vehicle's surface from blemishes due to repeated removal or placement of the magnetic mount and movement caused by high vehicular speeds. Various types of closure are provided for the cover bag such as a snap, zipper, hook and loop fastener, elastic banding, drawstring or combinations thereof. The cover may be made from cloth or a leathery material or a combination thereof. The cover bag may be colored for aesthetic and/or protective reasons.

Abstract: A microwave antenna has an elongated tubular radome made of a rigid nonconductive material, and an elongated unitary core made of a rigid dielectric material and telescoped within the radome in supporting engagement with the inner surface of said radome. A pair of conductive antenna elements are affixed to the surface of the core and extend along the length thereof. A microwave transmission line is connected to the antenna elements for transmitting electromagnetic energy to and from the elements.

Abstract: An antenna has a parabolic reflector and a tubular exciter which is provided for illuminating the reflector. At least one waveguide supports the exciter and connects electrically to the exciter for the guidance of electromagnetic waves to the exciter. A mount serving for mounting and stabilizing the reflector has an extension which extends radially beyond the edge of the reflector and has a support arm which is bent in a direction towards a front side of the reflector and extends forward beyond it. A waveguide bearing the exciter is fastened to the support arm.

Abstract: An array of collinear coaxial lines utilizes standard size brass tubing with brass rods inserted therein to establish each half-wavelength coaxial section. A coupler positioned between each half-wavelength section has an outer conductor supports and through passages for the inner conductor. Inner conductors of the transmission line elements are soldered to the outer conductors of the respective adjacent transmission line elements so that all elements are excited with the same phase and polarity. Air dielectric between the inner and outer conductors provides a transmission line wavelength equal to that of free space so that the length of each element in the array is a free space half-wavelength long, thereby providing an antenna gain greater than that achievable with transmission lines having solid dielectric supporting the inner conductor.

Abstract: A range accentuating device for remote control transmitters, used in connection with automobile and other types of accessories and options, is provided. The invention is comprised of an antenna, and a receptacle to couple the remote control transmitter, via mutual coupling, to the antenna. When the remote control transmitter is coupled to the antenna and the remote control transmitter is activated, the signal from the remote control transmitter is accentuated.

Abstract: The unitary cellular telephone antenna includes a junction box to which is mounted both the antenna element, preferably a 5/8 wavelength antenna, and two 1/4 wavelength downwardly oriented radials to establish the antenna's ground plane. Electrical elements are included within the junction box to match the impedance of the antenna system to the cellular telephone transceiver and to maximize the radiated signal.

Abstract: An antenna mount is shown for mounting an antenna whip on a support surface. The mount includes a first adapter for receiving and coupling the antenna whip to the mount and a second adapter for receiving and coupling the lead-in conductor to the mount. A coil spring is located intermediate and serves as the electrical connection between the first and second adapters. A one-piece elastomeric body is molded about the spring with the adapters being exposed for connection to the antenna whip and lead-in conductor.

Abstract: A steel reinforcement bracket attaches to an aluminum rib of a frame of a dish antenna to relieve the stress causing fatigue in the rib. The bracket is shaped in such a way so as to allow a cradle bracket gripping opposite sides of the rim to form a flat surface against the rib. The reinforcement bracket is secured to the rib and cradle bracket with bolts so as to transfer the stress on the rib to the reinforcement bracket.

Abstract: The present invention relates to an improved antenna. The improved antenna includes a rod; a first suction cup; a second suction cup; and connectors for removably mounting the first suction cup and the second suction cup longitudinally to the rod.

Abstract: A method for obtaining Global Positioning System (GPS) information for a required point on the earth's surface, the method comprising: positioning a GPS receiving antenna on a known point, beginning to record received GPS signals and thereafter continuously recording the signals, removably mounting the antenna on a rotary wing aircraft, moving the aircraft to a position proximate the required point, removing the antenna from the aircraft and positioning the antenna on the required point.

Abstract: A satellite antenna assembly includes a nonpenetrating roof mount having a pair of rectangular ballast trays for respective placement on portions of a pitched roof forward and rearward of the crown of the roof. A hinge structure interconnects the ballast trays and overlies the crown of the roof. The ballast on the trays is concealed by covers that simulate a skylight. A satellite antenna is mounted, at one of the four corners of the ballast tray located on the rear portion of the pitched roof, on a simplified antenna support and adjustment structure that facilitates variation of the polar orientation and elevation of the antenna.

Abstract: The mount disclosed herein facilitates the mounting of a radar antenna on a sailboat subject to heeling. A pivotable bracket providing a single horizontal axis of rotation only is supported on the upper end of a tube which surrounds the lower portion of the usual sailboat backstay, the tube preventing rotation around the backstay. The antenna is mounted with its center of gravity below the pivot axis and viscous damping is provided to prevent uncontrolled swinging of the antenna.

Abstract: The support tower comprises three (3) generally parallel legs positioned relative to one another to form a triangular configuration and each leg having a bottom end and a top end. A plurality of cross bracing is provided securing the legs to one another intermediate their ends. A first mount is located adjacent the top ends of the legs and is capable of supporting pivotally and slidably a microwave dish. A second mount is located on each leg for mounting cellular antennas generally back to back. The tower further includes an albow adjacent each top end of the legs wherein the elbow displaced the legs outwardly to increase the lateral spacing between the top ends of the legs.

Abstract: A transmit/receive module and RF elements are constructed as a sub-assembly. Notches are formed along the edges of two parallel spaced antenna planes. These notches engage mating notches formed in the element of the sub-assembly thereby retaining the sub-assembly by "snap-in" action. Conversely, the sub-assembly may be quickly disassembled by unsnapping the engagement of the sub-assembly and antenna plane.

Abstract: A line of paired, oppositely extending bracket members is snapped together on the ground plane of a three-layer radar membrane. Antenna plane strips are horizontally located above and below the ground plane. Sufficient space occurs between confronting edges of antenna plane strips to allow extension of the brackets therebetween when the membrane is rolled up. Radially adjacent bracket members interlock to prevent axial displacement of the rolled ground plane.

Abstract: An inside window antenna is disclosed having a housing adapted for mounting on an inside window, a dipole mounted within the housing with the opposed dipole ends extending out of the housing, and an electrical cable having a main conductor and a ground conductor. The main conductor is connected to a first location on the dipole, the ground conductor is connected to a second location on the dipole, and means are carried by the housing for mounting the housing on the window.

Abstract: A package for a microwave circuit chip and associated microstrip antenna is formed of a multi-layer ceramic laminate within which is supported a microwave chip carrier and on an outer surface of which a microstrip antenna disposed. A first ceramic layer is supported on metallic base member and contains signal lines for interfacing the chip with the external world. Disposed atop the first ceramic layer is a second ceramic layer which forms a protective seal ring around the perimeter of the chip. A third ceramic cover layer is mounted atop the seal ring layer and contains one or more antenna elements on its outer surface. Signal line connections between the chip and the antenna elements are effected through tuned networks that extend from signal leads on the chip to conductors on the first ceramic layer. Signal connections from the first ceramic layer to the antenna on the cover may be formed by conductive vias through the ceramic seal ring layer or conductors along sidewalls of the seal ring layer and cover.

Abstract: A portable satellite broadcast signal antenna apparatus for manually transporting a satellite signal converter. The apparatus includes an antenna device for receiving the satellite broadcast signals, a device for adjusting the angle of the antenna device with respect to a predetermined plane for aligning the antenna device with a satellite, and a housing defining an interior space for receiving the satellite signal converter and the angle adjusting device therein and having an exterior surface bearing the antenna device.

Abstract: An antenna for coupling to a printed circuit board comprises a ferrite rod and an electrically conductive coil having at least one turn extending around the core. The ends of the coil form the antenna's leads and are bent to retain the core therebetween. The coil is also bent to form a protrusion which extends away from the core. The antenna's leads and the protrusion may then be coupled to a printed circuit board to secure the antenna.

Abstract: A portable antenna including a housing, a radiator having its proximal end located within the housing and its distal end located outside of the housing, an electrical cable connected to the housing, and a support member coupled to the housing. The support member extends generally in the opposite direction of the radiator and has a portion for insertion and retention between the side window and door frame of a motor vehicle.

Abstract: Connection of two T-section posts between two half rings within an annular housing, whereby the T-section posts extend substantially parallel to each other and to the central axis of the bore of the annular housing. The annular housing may have a slightly tapered bore, whereby pressing the half rings into the bore of the annular housing presses the half rings tighter against the T-section posts, locking the T-section posts and half rings within the annular housing. The T-section posts may be rigid fiberglass-reinforced plastic. The annular housing may be a polyvinyl chloride slip coupling and the half rings may be cut sections of polyvinyl chloride pipe. The connection as described may be assembled by hand. A support structure for a UHF television receiving antenna uses two equal-length T-section posts connected between two half rings within an annular housing at each end of the posts; active antenna elements are attached to one T-section post and reflector elements are attached to the other.

Abstract: An antenna unit for an automotive vehicle is provided. This antenna unit is adapted to be located in a non-visible position on a vehicle and includes an grounding plate, a radiating conductive plate, and a loop antenna element which is interposed between the plates and is fixed thereto. The loop antenna is formed by two bars which have configurations symmetrical to each other. One end of each bar is folded at a right angle relative to the other end thereof. The ends of the bars are connected by elastically deformable connectors to define a loop and are electrically connected by a wire. By adjusting a length of the wire, easy tuning of the resonance frequency of the antenna unit can be obtained. The deformation of the connector absorbs shock given to the antenna unit by road obstacles such as stones or mud and guards it against impact damage.

Abstract: A suspended line feed type planar antenna has a substrate sandwiched between a top plate and a bottom plate, in which a number of protrusions are formed on the top plate and the bottom plate at a plurality of corresponding positions by deforming the top plate and the bottom plate by means of a press-process or press-treatment, so that the substrate is supported by the protrusions.

Abstract: A portable antenna including a housing, a radiator having its proximal end located within the housing and its distal end located outside of the housing, an electrical cable connected to the housing, and a support member coupled to the housing. The support member extends generally in the opposite direction of the radiator and has a portion for insertion and retention between the side window and door frame of a motor vehicle.

Abstract: Dual mode log periodic dipole antenna apparatus which provides for sum and difference radiation patterns depending on the method of excitation. The antenna incorporates a support structure which secures a plurality of radiators having three elements with successively incresing length. The center and right dipole elements of each radiator and the center and left elements of each radiator are alternately coupled together by separate transmission lines in a crisscross fashion. Input ports coupled to the smallest radiator and driven with a conventional hybrid coupler with either in-phase or out-of-phase energy at either .lambda./2 or .lambda.. Sum and difference radiation patterns are achieved by appropriate selection of the excitation phase. Thus, this antenna may be employed in monopulse or direction finding applications. An alternative embodiment is disclosed which employs center radiator elements offset from the right and left elements of their respective radiators.

Abstract: A mounting assembly for supporting a satellite transmitting antenna on a truck or other mobile vehicle includes a base member having a lower mounting surface adapted to be fixed against a mobile vehicle surface, for example, an air fairing on top of the cab of the tractor portion of a trailer truck, a first pivot axis on the base member spaced upwardly from the mounting surface and extending parallel with the latter, an upper member having an upper surface to which the antenna is secured and a second pivot axis spaced downwardly from the upper surface and extending parallel therewith, and a strut connected, at its end portions, to the first and second pivot axes with the latter parallel to each other so that the upper surface and the lower mounting surface can be adjusted relative to each other both angularly and in respect to the distance therebetween for varying the height and orientation of the mounted antenna.

Abstract: A telescope body is disclosed. The telescope body generally includes a primary structure for holding a mirror, a secondary structure for holding a means for receiving a reflection from the mirror, and a mounting section connecting the primary and secondary structure. The primary and secondary structures include four-bar linkages which have linkage action planes intersecting at the focal point of the mirror. Apparatus for preventing the secondary structure from intruding in a raypath of light to the means for receiving a reflection is also disclosed.

Abstract: Antenna mounting apparatus especially for use in connection with satellite dishes comprises a base assembly with an antenna extending upwardly therefrom, multiple ballast means extending radially from the base assembly, outer end plates disposed respectively adjacent the end of the ballast means remote from the base assembly, an aperture formed in each ballast means, and tie rods extending respectively through the apertures and interconnecting the base assembly and the associated outer end plate.

Abstract: Antenna of wire-like conductors, wherein two notched clamping devices snap-connect to a central post and hold a non-conductive flanged disk against said post. A notch in each clamping device extends over a perimeter flange of said disk. The antenna conductors, which are looped across and fastened to said post, have ends that are inserted through apertures in said disk into alligator clips attached to twin-lead transmission line.

Abstract: A portable reflector antenna assembly which is readily assemblable and disassemblable for use in the field has a triangular base frame employing three beam members which are joined together at their ends with hinge type knuckles which are slidably positioned on three legs. The legs have integral cup shaped pads near the bottom ends thereof and are driven into the ground until the cups abut against the ground to provide lateral and vertical support in the soil. The frame can be adjusted on the legs for both height and leveling by virtue of the slidable movement of each of the knuckles along the legs, and when in the desired position are clamped to the legs by means of lever-cam actuated draw bolts. The reflector member of the antenna is supported along its rim by means of pivotal supports and clamps, the bottom edge of the antenna being slidably adjustable in azimuth along the curved front beam member of the frame and clamped to the front beam member by means of clamping members.

Abstract: A crossed log-periodic dipole antenna having a unique feedline/boom structure providing improved antenna performance. The antenna is assembled from a pair of orthogonally displaced log-periodic antennas each having a pair of half-dipole structures, each structure having a half-dipole assembly and a central feed boom. The half-dipole assembly comprises a single sheet of conducting material formed to provide a central boom portion and a plurality of half-dipole elements projecting radially from opposite sides of the boom. The boom portion has a reduced thickness, a shape which complements that of the outer surface of the boom, and is press-fitted against and bonded to the boom exterior to form an integrated rigid unit. This configuration minimizes the force required to connect each half-dipole assembly with the adjacent boom, decreases the offset distance between the two dipole halves of each antenna, and reduces the electrical shadowing effect of the booms on the antennas.

Abstract: A low cost antenna mount is disclosed for mechanically securing an antenna to an electronic device and simultaneously providing assurance of good electrical contact with the input circuitry of the device. An antenna base (1) with a machined groove (2) is inserted through a hole (4) in a molded plastic antenna housing (5). An integral electrical contact and cam follower (7) is secured to the interior of the antenna housing (5). A cam (15) is used for moving the integral electrical contact (7) and cam follower (7) into mechanical and electrical contact with the antenna base (1). The cam follower (7) is formed from a single strip of spring metal and is bent at three places to form a guide (6) for receiving the antenna base (1) as it is inserted into the hole (4) in the antenna mount. The cam follower (7) is biased to follow the inclined surface of the cam (15) as it is rotated to securely lock the antenna base (1) in place and simultaneously make good electrical contact therewith.

Abstract: An adjustable bracket mount for mounting certain functional components such as a feed horn and a low noise amplifier feed assembly on a satellite antenna dish at the prime focus or other desired location above the antenna dish, which mount includes a base secured to the dish, a bottom support extending from the base toward the prime focus, a sloped offset bracket having one end provided in adjustable cooperation with the bottom support and the opposite end carrying a top support. The top support extends in parallel relationship to the bottom support and projects above the bottom support and a top bracket is adjustably mounted on the top support and features outwardly-extending arms designed to carry the feed assembly and mount a cover. Two variations of the top bracket are employed and a cone-shaped cover is provided to protect the feed assembly from the elements by mounting on both versions of the top bracket.

Abstract: A roof mount for securely attaching dish antennae to roofs of houses typically supported by a plurality of spaced rafters has a two piece frame attached to a selected portion of a roof with one piece on top of the roof supporting the dish and its adjusting mechanism and the other piece of the frame underlying the first frame beneath the roof. A plurality of fasteners penetrate the roof and both frames and draw the frames toward each other to clamp them about the selected portion of the roof and provide steady support for the antenna.

Abstract: A dish antenna frame having an extruded central hub, an outer rim and a plurality of intermediate extruded and bent arcuate tubular spokes, mounted on peripheral, radially extending fingers of the central hub and wherein each spoke mounting finger has extruded retention teeth and each tubular spoke has internal extruded teeth for rigidly retaining the spoke on the mounting finger.