Abstract: A joint assembly provided to an end portion of antenna rod is placed between supporting portions of an antenna base. A click cylinder is then introduced into a hole of the supporting portion to engage recess and convex portions formed on a plate as an end surface of the click cylinder and an inner sursurface of the joint assembly, thereby generate click resistance. A coil spring is inserted into the click cylinder thereafter, then a bolt is introduced into the click cylinder through a washer. The bolt is screwed with a nut via a wave washer, a washer, and a spring washer.

Abstract: A dual polarization antenna for receiving and transmitting high frequency signals in conjunction with a substantially horizontal conducting vehicle panel defining a ground plane comprises three electrically conductive radiative elements, each radiative element being generally linear and extending between a proximal end and a distal end, and an electrically conducting mount (insulated from the vehicle panel) for securing the proximal ends together at a common point and in electrical circuit relation with one another for connection to a transceiver in the vehicle. The radiative elements extend vertically upwardly and outwardly from the common point whereby to form an imaginary cone with the proximal ends forming the apex of the cone. The radiative elements are of different lengths and disposed at an angle relative to the ground plane to provide horizontal and vertical polarization in a first, second and third frequency band.

Abstract: An adjustable antenna for receiving broadband signals. The antenna includes a first elongated antenna rod that is held next to a second elongated antenna rod in a parallel orientation to the first elongated antenna rod. The antenna rods are supported by a clamping or supporting device that allows the two rods to be slid relative to one another so that the antenna may be tuned to a particular frequency. Electrical contacts to the rods are also provided to allow transmission of the collected signal to a desired device.

Abstract: A compact, simple to install dipole antenna that has a base composed of a molded plastic mass in the shape of a modified D-shape and having a flat face. A pair of spaced, coaxially aligned brass cores are encapsulated in the plastic mass of the base with threaded portions of the cores projecting axially out of the plastic mass of the base. A coaxial cable, having an outer conductor and an inner conductor, has one end encapsulated in the plastic mass of the base. Connectors directly connect the outer conductor of the coaxial cable to one of the brass cores, and the inner conductor with the other brass core. A pair of telescoping brass pole elements are threadedly mounted on the threaded projections.

Abstract: An apparatus, system and method for providing audio broadcast signals received from a satellite to a satellite radio receiver. A window clip having an integral transmission line is mounted on the edge of a vehicle window. The interior end of the transmission line is connected to the satellite radio receiver. The exterior portion of the clip, and the exterior portion of the integrated transmission line, is coupled to an antenna. The antenna may be an omnidirectional quadrifilar antenna having circular polarization, a gain greater than about 3 dBi, a G/T greater than about −20 dB/K, and a frequency range of about 2.3 GHz to about 2.7 GHz, also known as the S-band. The antenna system can be used to receive satellite digital audio radio service (SDARS) and transfer the signal to a satellite radio receiver inside the vehicle.

Abstract: A vehicle antenna display system that moves as the vehicle travels along. The vehicle antenna display system includes a slide member and a stop member. The slide member slides up and down the vehicle antenna depending on the speed of the vehicle by the force of the air generated by the moving vehicle against one or more wing portions. The lead edge of each wing portion is kept oriented into the blowing air by a tail member.

Abstract: An antenna system for a radio telephone in a vehicle that has a primary antenna to realize telephone communication with optimal connection quality connected to the radio telephone by an antenna wire, a secondary antenna that at least allows for telephone communication with limited connection quality when the primary antenna fails and an electric switch that connects the secondary antenna to the radio telephone after the primary antenna fails. This is realized in that the primary antenna is mounted on the vehicle with a breakable fastening element and that the switch automatically connects the secondary antenna to the antenna wire by mechanical means in place of the primary antenna when the fastening element is broken off.

Abstract: An indirect electrical coupling for a cellular telephone antenna is created by a rotary primary antenna and a stationary paging antenna when the primary antenna is extended into an operative position. When extended, the primary antenna is positioned proximate to the secondary antenna to define an electrical coupling therebetween. Rotating the primary antenna away from the extended position automatically disengages the primary antenna from the telephone operating circuit. The antenna elements or antenna spacings provide the appropriate matching circuitry and the advancement and retraction of the primary antenna provides the switching of the matching circuitry.

Abstract: A multi-legged antenna mounting system for vehicles, to resist high wind loading on the antenna, having at least three mounting legs positioned to the vehicle by clamping members or by magnetic attracting members. The legs of the mounting system are secured to an antenna connecting assembly unit in order that a plurality of the legs are adjustably secured for various angular dispositions with respect to the vehicle. One of the legs of the mounting system comprises the antenna element.

Abstract: The invention is a universal replacement antenna assembly for replacing an automobile radio antenna. The antenna assembly includes a universal mounting assembly that fits all cars and trucks and facilitates easy antenna installation. An antenna mast connected to a mounting member having a lower body portion and an upper connecting portion. Pivoting rocker arms pivot from a lower end of the mounting member within a range from an upright, closed position to an open position not exceeding ninety degrees from said closed position. A connecting member is mounted on the antenna mast and is movable with respect to the mast and the mounting member and is connectable with the connecting portion of the mounting member. During installation of the antenna assembly the mounting member and the rocker arms are inserted through a hole in the mounting surface with the rocker arms in the closed position and the connecting member is moved downward and connected to the connecting portion of the mounting member.

Abstract: The disclosure relates to an antenna device for radio communications apparatus operating in the frequency range of 800-3000 MHz and including a radiator. A dielectric resonator is connected to the supply line of the antenna device, the resonator being galvanically discrete from the radiator but being operative to supply it.

Abstract: A dual-band glass-mounted antenna system includes a dual-band through-the-glass coupler, a matching section, and a dual-band collinear antenna element. The coupler has a portion which is secured to an interior surface of the glass, and a portion which is secured to the exterior surface of the glass at a position opposite the interior portion. Co-planer transmission line circuitry in the interior and exterior portions of the coupler cooperatively form a four-conductor transmission line operating in the “coupled microstrip line odd mode,” thereby achieving coupling of RF energy through the glass window material in two disparate frequency bands. The transmission line characteristics are selected to achieve efficient coupling and desired impedance characteristics in the cellular and PCS frequency bands. The dual-band antenna element includes upper and lower radiator sections separated by a phasing coil.

Abstract: A vehicle body has a plurality of flat and rod-shaped synthetic plastic elements, and a plurality of antennas connected with the synthetic plastic elements for reception and transmission of various frequencies, the synthetic plastic elements at least partially being provided with surfaces and tracks of a differently thick metal coating, the metal coating being structured so that a selection of the antennas for identical or different frequencies and ground reference surfaces as well as regions with screening action are provided, and depending on an operational frequency and a required radiation diagram, radiations with various operational principals being produced, and the surfaces which act for one frequency as radiators for other frequencies belonging to a ground potential, the antennas and ground reference surfaces produced by a structuring as well the regions with screening action being distributed over synthetic plastic elements, the synthetic plastic elements for a predetermined antenna principle being m

Abstract: A FM multiple signal receivable navigation apparatus is disclosed. A GPS signal receiving antenna unit and a GPS signal receiver unit are electrically connected by a coaxial cable. One end of the coaxial cable is connected with the GPS signal receiving antenna unit, and the other end of the cable is connected with the GPS signal receiver unit through a connector. A shield conductor of the coaxial cable is served as a FM multiple signal receiving antenna. The shield conductor is connected with a FM multiple signal receiver unit through a noise reduction member. The connector can be replaced by a PCMCIA (Personal Computer Memory Card International Association) card.

Abstract: In one preferred embodiment, a dual band antenna having a radiating element which includes: a one-quarter PCS wavelength radiating portion which serves as a base; a one-half PCS wavelength radiating portion; a PCS phasing coil joining the one-quarter PCS wavelength radiating portion to the one-half PCS wavelength radiating portion, wherein the PCS phasing coil substantially allows energy in the AMPS band to pass therethrough; a one-half AMPS wavelength radiating portion; and an AMPS phasing coil joining the one-half AMPS wavelength radiating portion to the one-half PCS wavelength radiating portion, wherein the AMPS phasing coil substantially prevents energy in the PCS band from passing therethrough, and wherein the AMPS phasing coil provides a 180 degree phase shift for energy in the AMPS band.

Abstract: Antenna element fastened to an automobile window which without being connected to a mobile telephone by means of a cable enhances the possibilities of transmitting and receiving inside an automoble.

Abstract: A low cost glass mount vehicle antenna system utilizes, in a preferred embodiment, an over-coupled quasi-TEM mode transmission line coupler having two simple stamped or printed plates stacked over an L shape internal ground plane. The two conductive plates are located on opposite sides of the glass. With proper open circuit terminations on two of the four coupler ports, the backwards and forward coupling signals are redirected/combined and are effectively fed diagonally between the other two ports, thereby achieving through-glass coupling. The over-coupling achieves this efficient through-glass coupling effect at two spaced-apart frequencies (e.g. 800 MHz and 1800 MHz). The coupler is of a low impedance type and can be used with a variety of collinear array and elevated-feed antennas. It features high efficiency, low backwards radiation, and mechanical simplicity.

Abstract: An antenna for a vehicle including an antenna mast, a mast base and subsurface base that are assembled by means of a fastener that connects the mast base and subsurface base to a body panel of a vehicle. The mast base is a solid member that does not include any openings or conjoint members that could provide a leak path through the mast base. A fastener extends through a hole in the subsurface base and is retained as a subassembly with the subsurface base by means of a retainer clip. The subsurface base includes a coaxial cable receptacle and provides a ground for the coaxial cable shield and conductor for a center conductor. The ground may be provided by a serrated washer and serrations that may be driven into the body panel when the fastener is secured. The center conductor is engaged by the fastener to conduct radio signals from the mast, through the mast base, to the fastener, and to the center conductor of the coaxial cable.

Abstract: This invention relates to a composite antenna used in a radio transceiver, which comprises a first antenna and a detachable antenna set. The first antenna can be used without the detachable antenna set for transmitting and receiving radio signals radiated from the radio transceiver. The detachable antenna set comprises a second antenna for transmitting and receiving radio signals and an antenna sheath electrically connected to the second antenna, for detachably attaching to the first antenna. When the antenna sheath is attached to the first antenna and electrically connected to the signal line and the ground port therein, radio signals transmitted or received by the radio transceiver are confined within the antenna sheath and can be transmitted or received through the second antenna of the detachable antenna set.

Abstract: An AM/FM/CB/cellular telephone antenna includes a first frequency self-resonant circuit at a position above the lower end of the antenna such that the electrical length of the lower section of the antenna is equivalent to one-quarter wavelength for a frequency in the FM frequency range and a second frequency self-resonant circuit disposed below the first frequency self-resonant circuit. The first self-resonant circuit presents a high impedance in the FM frequency band and the second self-resonant circuit presents a high impedance in the cellular frequency range. The entire length of the antenna is equivalent to one-quarter wavelength in a frequency in the CB frequency band. The antenna wire is wound around a fiberglass core, and the FM self-resonant circuit is formed by a tightly wound, coiled section of the wire together with a thin-walled brass tube extending over the core in the area of the tightly wound section.

Abstract: An car antenna having anti-theft features including a rod for receiving radio-frequency signals; a support base to be secured to a support surface; and a joint secured in the base. The rod or the joint includes an elastic element for allowing the base and joint to be unidirectionally coupled and snapped together. The joint may also include articulating portions allowing the antenna position to be adjusted.

Abstract: An antenna for a radar unit for level measurement has a dielectric rod radiator for radiating microwaves in a main radiation direction. A coupling sleeve is provided with an external thread for installation by screwing into a holder opening. The coupling sleeve contains an at least partially approximately hollow cylindrical inner part made of dielectric material that projects in the main radiation direction out of coupling sleeve. A hollow guide system includes an HF coupling device and hollow guide tube that is received in an inner part. As viewed in the main radiation direction, the rod radiator is located releasably or permanently at the forward end of the inner part.

Abstract: A dual band antenna with a simple and compact structure includes an inductor, first and second rod-like radiating elements connected to opposite ends of the inductor, with dielectric material surrounding both the inductor and the joining portions of the first and second radiating elements on the respective ends of the inductor. A conductive housing surrounds the dielectric and supports the inductor and the joining portions of the first and second radiating elements. The housing and dielectric create a capacitance, so that an LC resonant circuit is formed in conjunction with the inductor. The LC circuit is designed such that only one radiating element radiates at the higher band of the dual operating band, whereas both radiating elements radiate at the lower band.

Abstract: A motor unit fitted with a buffer mechanism which absorbs the turning force of a motor when an output shaft of the motor stops due to an external load while the motor is operative and which can provide stable performance without causing biting between a worm and a worm wheel. The motor unit fitted with the buffer mechanism causes relative rotation between the output shaft and the worm wheel when the output shaft stops turning while the motor is operative. Springs and rubbers are provided in series or in parallel in a power transmission system within the worm wheel with respect to the direction of rotation of the worm wheel so as to function as buffer members by absorbing the turning force of the motor when the output shaft stops turning while the motor is operative.

Abstract: A clutch for a motor driven antenna according to the present invention includes a driving member rotated by a driving motor, a driven member for transmitting a rotating force of the driving member to an antenna element, and a clutch element for frictionally transmitting the rotating force of the driving member to the driven member. The clutch element includes recesses formed on a rotating track of one of opposing sides of the driving member and driven member, projections formed on a rotating track of the other side so as to be fitted into the recesses when the driving member and the driven member are rotated relative to each other, and anti-slip members protruded near the recesses such that a sliding frictional force caused at the tip end contact portions of the projections exceeds a maximum load of the antenna element including the driven member when the antenna element is extended or retracted.

Abstract: An antenna includes a dipole (20) with upper and lower elongated conductors (22, 24) and a feedline (40) for carrying radio frequency currents to the dipole by connecting the feedline to the lower end (30) of the upper conductor and to the upper end (32) of the lower conductor, which produces maximum gain. A spacer (50) spaces the center of the feedline by a distance (A) of about 3 centimeters from the center of the lower conductor, to produce minimum losses while providing a compact antenna. A toroidal ferrite core (110) lies at the bottom of the lower conductor and the feedline is in the form of a wire pair that is wrapped a plurality of times about the ferrite core to prevent signals radiated by the lower conductor and picked up by the feedline, from passing to the radio. A tuning member (150) of electrically conductive material can be slid along the spacer to tune the antenna without changing its height (B).

Abstract: A telescopic rod antenna apparatus of the present invention includes a mechanism for extending/retracting a telescopic antenna element by operating a smallest-diameter one of rods of the antenna element, and a means for setting the rods in the second state where a tip portion of a largest-diameter rod contacts an O-shaped ring seal means and then extending the antenna element using the mechanism, setting the rods in the second state where the antenna element is retracted using the mechanism, and displacing the second state to the first state where the largest-diameter rod is returned to the initial position of a holding tube to bring a top portion into contact with the O-shaped ring seal means.

Abstract: A multiple frequency coupler establishes a low noise communication path, through the windshield of a vehicle, from a multiple frequency wireless telephone or multiple single frequency telephones, each operating at a different frequency, in the vehicle to the exterior of the vehicle. The coupler includes two preferably like-shaped internal and external elements that are oriented face to face with each other, with the windshield sandwiched between them. Each element is tapered, and the elements are juxtaposed with each other such that the wider end of one element is generally opposite the narrower end of the other. Also, a multiple frequency radiator is attached to the external element. The radiator includes plural radiating elements that are separated from each other and that are attached to a common base, with each radiating element being configured for radiating a respective frequency.

Abstract: Antenna mounts to enable a conventional antenna to be securely attached to a motor vehicle, such as a standard pick-up truck, and electrically connected to a radio that is carried by the truck. To increase the strength of the antenna mounts and thereby reduce the possibility that the antenna will snap off when subjected to high winds and other loads, the mounts are located through an existing hole that is established in a wall which surrounds the bed of many pick-up trucks. In one case, where the antenna mount is substantially recessed within a cavity below the existing hole in the wall, a fastener secures the antenna mount to the bottom of the cavity. In another case, where the antenna mount is partially recessed within the cavity, a pair of L-shaped clips are attached between opposite sides of the antenna mount and the top of the wall.

Abstract: An antenna apparatus includes electrical contacts which each have a sliding mast contact portion and a docking contact portion. The apparatus includes a linearly extendable and retractable one-piece mast antenna. The sliding mast contact portions of the electrical connectors make contact with an outer surface of the mast antenna along the full length of the antenna as it is extended and retracted. The docking contact portions of each electrical connector make electrical contact only with a lower end portion of the antenna which has a larger diameter than the remainder of the antenna. The docking contact portions of each electrical connector only make electrical contact with the lower end portion when the antenna is substantially completely extended. In this manner the docking contact portions experience only a small degree of the wear experienced by the sliding mast contact portions, which make contact with the outer surface of the antenna along almost its entire length.

Abstract: A signal receiving gain device for car mobile-phones, is comprised of a main body which includes a housing, an insertion connecting pipe is extended out from one end of the housing for inserting in an electric socket provided in a car, the housing can hold therein an electric circuit board of which one end is connected to the insertion connecting pipe, the opposite end of the housing to the insertion connecting pipe is connected with an amplifying emitting antenna and an external antenna of the car respectively. When the external antenna receives a signal of the frequency within the specified range, a gain signal is obtained and is emitted by the amplifying emitting antenna, this further elevates the signal receiving capability of a mobile-phone in the car.

Abstract: The invention relates chiefly to double antennas for metric and decimetric waves, designed for vehicles. The antenna comprises a single-pole antenna for low frequencies surmounted by a dipole type antenna for high frequencies. The supply cable of the dipole antenna has an external conductor used to form the single-pole antenna above the ground plane. Beneath the ground plane, this external conductor is wound in turns to constitute the secondary winding of a transformer for the supply of the single-pole antenna. Application especially to ground vehicles.

Abstract: A snap-on antenna and connector mounting assembly for a hand-held electronic device, such as a hand-held computer. The hand-held electronic device has a housing with a sidewall and a jack-receiving aperture therein, an antenna jack extending through the jack-receiving aperture, and a flexible bushing positioned in the jack-receiving aperture between the antenna jack and the sidewall. The bushing isolates the antenna jack from the sidewall, so the antenna jack is deflectable relative to the sidewall without being damaged. The snap-on antenna has a substantially rigid base having an interior area therein and having a housing-attachment portion with an aperture communicating with the interior area. A plug connector contained within the interior area has a jack-connecting portion positioned to removably receive the antenna jack such that the antenna can be snapped into and off of the hand-held electronic device between installed and removed positions, respectively.

Abstract: A fixed dual frequency band antenna for a dual frequency band radio transceiver where the two frequency bands are not harmonically related. The antenna includes a straight radiating antenna portion terminated by a helical wire radiating antenna portion, with the total electrical length of the antenna being approximately three quarters of the wavelength at the center frequency of the higher of the two frequency bands. A conductive radiating cap terminates the helical portion and a conductive antenna base is connected to the straight portion at the end opposite the helical portion. A matching circuit coupled between the base and the transceiver circuitry is arranged to substantially cancel the reactive portion of the impedance of the antenna for both frequency bands and to substantially equalize the resistive portion of the impedance of the antenna to the resistive portion of the output impedance of the radio transceiver.

Abstract: A power antenna for automatically stopping an electric motor when a telescoping trouble occurs with the antenna to thereby cause a load of more than a predetermined magnitude to be applied to the electric motor and preventing the electric motor from being burned out and a telescoping operating mechanism from getting damaged, whereby the occurrence of an erroneous operation of the antenna such as repeated contracting and expanding operations thereof can be controlled. A worm wheel (2) inside an antenna mechanism is pivotally supported in such a manner as to slide in an axial direction and an engagement groove (21) is formed in an annular fashion, and an operating portion (32) of a movable body (17) of a limit switch (30) provided in a driving circuit for the motor is brought into engagement with the engagement groove (21) of the worm wheel.

Abstract: A tunable capacitive coupling to a monopole antenna is provided which integrates the tuning mechanism into the supporting structure for the antenna. The base of the antenna is insulated from and supported by a cylindrical clamping assembly such as a metal compression ferrule in cooperation with an adjustment collar. This clamping mechanism enables the ferrule to be tightened like a drill bit in a chuck at any position along the base of the antenna. The coupling capacitance formed between the antenna radiator and the compression ferrule is proportional to the insertion depth of the antenna into the compression ferrule, thereby enabling the antenna to be tuned. The coupling method of the present invention enables repeatable tuning of the antenna either upward or downward in frequency within the band of frequencies accommodated by the particular antenna.

Abstract: An antenna for connection to a communication device, the antenna having a base, which is inserted into a receptacle in the communication device, and including a connection mechanism, coupled to the base, which locks the antenna to the receptacle in response to a linear movement of at least a portion of the antenna.

Abstract: A boot assembly (40) for an antenna (30) includes an elongate sleeve (42) and an end cap (60), the sleeve (42) having an opening defining an annular recess (44) dimensioned to receive the end cap (60) and be secured thereto in an adhesive joint. One of either the inner surface (46) of the annular recess (44) or the outer surface (62) of the end cap (60) has axially extending ridges (48) and the other of the inner and outer surfaces (46, 62) has corresponding axially extending recesses (64) dimensioned to receive the ridges (48) therein. The inner and outer surfaces (46, 62) provide a large adhered surface area and multiple shear planes that distribute stress upon impact and minimizing propagation of cracks in the adhesive joint thereby maintaining the integrity of the sleeve (42) and end cap (60).

Abstract: A multiple frequency antenna and coupler are disclosed that establish a low noise communication path from a multiple frequency wireless telephone or multiple single frequency telephones, each operating at a different frequency, in a vehicle to the exterior of the vehicle. The coupler includes internal and external elements that are oriented face to face with each other, with a windshield sandwiched between them. Each element is tapered, and the elements are juxtaposed with each other such that the wider end of one element is generally opposite the narrower end of the other. A multiple frequency radiator is attached to the external element. The radiator includes plural radiating elements that are separated from each other and that are attached to a common base, with each radiating element being configured for radiating a respective frequency.

Abstract: A rod-shaped vehicle antenna according to the present invention, includes a rod-shaped antenna element having small- and large-diameter portions arranged alternately at regular pitches along the longitudinal direction of a rod-shaped conductor. When the outside diameter of each of the small-diameter portions is D1, that of each of the large-diameter portions is D2, and the pitch (length of each of the small- and large-diameter portions) is P, P is set within the following range:(D2.times.6).ltoreq.P.ltoreq.(D2.times.7). The ratioof D1 to D2, that is, D1/D2 is set within the following range:0.7.ltoreq.(D1/D2).ltoreq.0.85.

Abstract: The present invention relates to an antenna system that is particularly suited for use in mobile communications applications. The antenna system includes both a transmit array and a receive array in a side by side configuration. In one embodiment, the radiating elements used in each of the arrays consist of air loaded microstrip patch antennas. The elements in each array are linearly arranged and polarization diversity is utilized so that the transmit and receive arrays can be spaced closely together.

Abstract: A low cost window-mounted antenna system for mobile communication systems operating at frequencies in and above the 1.5 GHz band includes an annular ring aperture coupler fabricated on printed circuit boards on each side of the window, with a microstrip line etched on each of the printed circuit boards. A collinear array-type whip antenna with a 1/2-wavelength lower section is used with the coupler. A coplanar waveguide trace is printed on the outside coupling unit to form an impedance matching network for the active element. The RF signal is thus electro-magnetically coupled through the window.

Abstract: An apparatus for attaching a rod-shaped antenna to a vehicle comprises supporting plates and a hollow holding member which is formed in a hollow truncated-conical shape, and which includes an opening portion and an elongated-hole formation portion having an elongated hole formed in the upper wall of the hollow holding member. The supporting plates have contact portions and center portions supported to allow supporting plates to rotate at journal support points. The journal support point of each of the supporting plates may be placed within the range of the thickness of the wall when the contact portions of each supporting plate are put into contact with the inner surface of the wall. The elongated-hole formation portion has inner and outer surfaces each of which is arcuated along a circle having a center at the journal support point when the opening portion of the hollow holding member is attached to the wall.

Abstract: A system of antennas for conserving space and concealing the separate identity of the individual antennas. The antennas may be a radio antenna and a telecommunications antenna. The antennas may have a common base to eliminate separate wires and holes in the vehicle on which they are mounted. The antennas may be housed within the same casing to protect them from the elements and from other harm.

Abstract: A releasably mounted antenna assembly is provided including a first member and a second member movably coupled to the first member. A spring is situated between the first member and the second member for urging the same together for coupling to an exterior of a vehicle. An antenna is mounted to one of the members and extends upwardly therefrom.

Abstract: A dual-band antenna coupler for use in an adapter for portable radiotelephone. A plurality of curved bands of metal are positioned on a ground plane, with at least two of the plurality of curved bands of metal being electrically isolated from the ground plane so as to couple radio frequency (RF) signals to and from the antenna of the portable radiotelephone. The isolated curved bands of metal couple RF signals between the antenna of the portable radiotelephone and first and second matching circuits designed to match the portable radiotelephone antenna at each of the respective frequency bands. A selector switch coupled to the output of the matching circuits selects the appropriate matching circuit output for connection to an external antenna. The adapter also includes at least one ground pin mounted on the ground plane. When the portable radiotelephone is interfaced with the antenna coupler, the ground pin makes electrical contact with a ground reference connection on the portable radiotelephone.

Abstract: A body panel mount antenna, for generally mounting in a metal panel of an automobile, is provided. The antenna includes a radiator whip and a mounting assembly and is particularly suitable for use in the frequency range of over 1000 MHz. The mounting assembly provides support for the radiator whip and comprises an electrically conductive conically shaped member. A base for anchoring the antenna to a metal panel is also provided. The base and mounting assembly are attachable through an opening in a metal panel in such a way that the conically shaped member is in continuous positive contact with the metal panel. The contact between the conically shaped member and the metal panel causes the metal plate to act as a ground plane for the antenna.

Abstract: An external rear view mirror for motor vehicles, particularly commercial trucks, includes a support arm and mounting devices for mounting the support arm to the motor vehicle. A housing defining an interior volume is provided with the support arm having a vertical portion extending completely through the housing interior volume. At least one support plate is removably attached directly to the support arm vertical portion. An adjustable mirror assembly is mounted to the support plate front side so as to be variably positionable relative thereto. An antenna mounting bracket is formed integral with and extends from the support plate back side into the housing interior volume. The antenna mounting bracket is configured for receipt of an antenna which extends out of the housing. The entire weight of the antenna and the antenna mounting bracket is supported by the support plate which is in turn attached directly to the support arm.

Abstract: A disguised broadband antenna system for use with a broadcast radio receiver and communications apparatus in a vehicle wherein the antenna system comprises a standard broadcast antenna mounted to the vehicle by means of a base, a distributed matching network for coupling the antenna to the broadcast receiver and the communications equipment in the vehicle and a broadcast coupler connected between the matching network and the broadcast receiver and communications equipment for providing isolation between the broadcast receiver and communications equipment. The distributed nature of the matching network provides the broadband frequency response required while at the same time providing the highest Q factor available in a limited size and spreads any power dissipation over a relatively larger area. A series reactive element is connected electrically to the antenna through the base to cause the antenna to operate closer to resonance through the broadband frequency range of interest.

Abstract: .?.A mobile antenna system features passive repeater operation to transfer energy between a radio transceiver located inside a vehicle and an external radiator mounted on the outside thereof. By this arrangement, a user of the radio transceiver can gain benefit from the external radiator without the hinderance of a physical, wired connection linking the transceiver to the antenna assembly. In a preferred embodiment, the antenna system operates without any electrical cable extending inside the vehicle from the external radiator..!..Iadd.A mobile cellular antenna system includes an auxiliary antenna that is positioned inside the passenger compartment of a vehicle and is coupled to the radiator on the exterior of the vehicle. This arrangement permits users of portable or transportable cellular telephones with built-in antennas to gain transmission and reception advantage from the exterior antenna while operating from within the passenger compartment. .Iaddend.