Abstract: A receiver receives an electromagnetic signal via an antenna mounted on an antenna mast. A signal evaluator determines or measures a signal quality level associated with the received electromagnetic signal. The signal quality compares the determined signal quality level to a threshold minimum signal quality level. A current elevational position of the antenna mast is detected or tracked. The antenna mast is raised to a greater height than the current elevational position if the compared signal quality level is less than the threshold minimum signal quality level and if the current elevational position is less than a maximum height of the antenna mast.

Abstract: An antenna which can be operated in a number of frequency bands and has at least one part which encloses an area and at least one part which does not enclose an area, with the at least two parts including a single conductor part being connected in series with one another, and the at least two parts interacting with one another in such a manner that the antenna has at least two resonant frequencies in a definable position, and with each at the same time having a wide bandwidth.

Abstract: A waterproof automotive antenna mounting assembly gasket comprises a base having a plurality of apertures and a mounting hole disposed therein, a generally sloped outer casing extending upward from the base, an inner casing connected along a bottom portion of the outer casing and positioned interior to the outer casing, a gap positioned between the bottom portion of the inner casing and the base, a plurality of compressible tabs extending inwardly from the inner casing and aligned with the apertures in the base, a channel disposed in between the inner and outer casings, a plurality of gripping members disposed on an underside of the base, a sealing interface disposed on the base, and an anti-rotation hole disposed on the base. The upper portion of the inner casing extends beyond the upper portion of the outer casing. The anti-rotation hole aligns with a corresponding hole attached to a secondary surface.

Abstract: A radio antenna that includes top and base sections. An insulator is disposed between the sections. A device provides an electrical load between the sections. The transmission line assembly transparent to antenna radiation fields carries an electrical signal between the sections and the electrical load providing device that is in a mechanical and radiation efficient location.

Abstract: An antenna formed of a mounting base, an antenna terminal and a transmission box is described for use in an automobile. The antenna terminal is pivotally attached to the mounting base by a ball and socket joint. The mounting base has a bearing plate supported on a spring member and forced by the spring member to adjustably positively hold down the antenna terminal in position.

Abstract: A capacitive signal coupling device to link an antenna radiating element to a peripheral device is disclosed. The capacitive signal coupling device includes a support and at least one conductive element on a first surface of the support. The conductive element is positioned to align with the radiating element of an antenna system and also includes a connector to enable a peripheral device to be connected to a transceiver antenna system without violating the integrity of the transceiver unit itself or without interrupting the operation of the transceiver system.

Abstract: An antenna system is disclosed. The antenna system includes at least one first and second antenna. The at least one first antenna is located about a first portion of a mobile structure and is capable of receiving satellite and terrestrial re-transmitted satellite signals. The at least one second antenna is located about a second portion of a mobile structure and is capable of receiving satellite and terrestrial re-transmitted satellite signals. Either the at least one first or second antenna receives the satellite and terrestrial re-transmitted satellite signals and the other of the at least one first or second antenna becomes operative when the satellite and terrestrial re-transmitted satellite signals being received by the at least one first or second antenna is obstructed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

Abstract: A wideband antenna system is capable of radiating or receiving signals in a low-frequency band [Fbb, Fbh] covering more than one octave and a high-frequency band [Fhb, Fhh] with Fhb>=2Fbh comprising at least one power supply device (4) powering at least one upper radiating element (1) and at least one lower radiating element (2). The lower radiating element (2) is provided with at least one antenna assembly (10) adapted to radiating in the high-frequency band [Fhb, Fhh]. Application to RF signals. FIG. 3 to be published.

Abstract: A motor-vehicle antenna has a monopole formed by a rigid circuit-board having a conductive trace, a socket for connecting a coaxial cable to the monopole, and a ground plane formed of rigid sheet metal or a circuit board and fixed to the monopole.

Abstract: A tunable antenna system includes an antenna, a tuning mechanism, and a key that relates points of adjustment in the tuning mechanism to different installations of the antenna. The antenna can be tuned for a given installation by applying the key to the antenna without specialized knowledge or equipment. The system also includes a set of tunable antennas, each being tunable within a different range of electrical lengths. The number of antennas in the set is sufficient to cover a total range of electrical lengths for a given set of installations. Fewer antennas are needed to provide a tuned antenna for each installation.

Abstract: The present invention includes an antenna rod, an antenna base which attaches the antenna rod so as to be capable of swiveling, a joint assembly which consists of a cylindrical member in an axial direction orthogonal to an axial direction of the rod at one end of the antenna rod, a pair of pivotal support portions provided so as to confront an upper portion of the antenna base so as to mount the joint assembly on a pivot in a swiveling manner, and a torsion spring which is provided with respect to the joint assembly and automatically returns the joint assembly to a predetermined swiveling position by giving the elasticity of itself even if a swiveling position of the joint assembly is changed due to an external force applied to the antenna rod.

Abstract: An antenna can efficiently radiate at both the lower cell phone frequency band of about 850 MHz and the higher cell phone frequency band of about 1920 MHz that are in current use. The antenna includes a vertical conductor with an upper portion (32) of a length that is about ½ wavelength at the lower frequency to effectively radiate at that frequency. An upper PRD (phase reversal device) (40) located along the upper conductor portion divides it into top and bottom parts (60, 70) each of about ½ wavelength at the higher frequency, the PRD providing a 180° phase reversal at the higher frequency without affecting the lower frequency. A lower conductor portion (34) includes a coil (80) that produces a phase reversal at the lower frequency, a lower PRD (82), and a short straight conductor part (84). A lower conductor part (90) extends through the lower PRD (82) and connects through a mount member (130) to a coaxial feed.

Abstract: The present invention provides antenna assemblies for wireless devices where the antenna has a tip with at least one barb and a cap with at least one internal groove. The barb and groove mate to form a snap lock. The snap lock resists pressure tending to pull the cap off the antenna.

Abstract: Antenna system composed of (N+1) virtually identical radiating structures with N greater than or equal to 1, said (N+1) structures being arranged parallel to each other and each radiating structure being connected to a power supply and impedance matching device. Use for frequency ranges between 1.5 to 30 MHz.

Abstract: An antenna mounting system includes a first mount having a positioning portion adapted to extend through an opening in a vehicle panel to position and hold the first mount relative to the vehicle panel, a second mount adapted to be disposed adjacent the opposite surface of the vehicle panel, and a connector adapted to couple the first and second mounts to each other. A conductive plate associated with one of the mounts forms a capacitive coupling with the vehicle panel and in conjunction with an inductor or resistor provides a selected resistance to ground. A connector screw in the system has a weakened section which during installation will break should excessive forces be applied thereto, thus to protect other components in the system.

Abstract: A wireless LAN base station is provided with a noise signal scanning antenna separately from a wireless signal reception antenna. An attenuation circuit section attenuates the received signal from the noise scanning antenna according to an attenuation factor from an attenuation factor storage section. A distance setting storage section stores a distance between the wireless signal reception antenna and the noise scanning antenna. An attenuation factor storage section holds pieces of data each of which indicates the relationship between the distance between the antennas and an attenuation factor in the form of a table. An attenuation circuit section employs the attenuation factor so as to attenuate the received signal from the noise signal scanning antenna. A subtraction circuit section subtracts an output signal of the attenuation circuit section from the signal from the wireless signal reception antenna, and reduces or eliminates a noise from the received signal from the wireless signal reception antenna.

Abstract: The present invention provides an antenna mounting device comprising mounting unit to supply compressive force between an antenna and a panel. The mounting unit includes a forcing cone and anchor and a member designed to supply compressive force such that the anchor and forcing cone are compressed into each other.

Abstract: An antenna is compactified whilst being able to operate across at least two different broad frequency bands. An antenna circuit board 7 on which an antenna pattern 7a and a passive element pattern 7b are formed is accommodated inside an antenna case. An antenna element is connected electrically to the upper end of the antenna pattern 7a. An antenna operating in the GSM and DCS frequency bands is constituted by a telephone element provided on the lower portion of the antenna element and the antenna pattern 7a and passive element pattern 7b formed on the antenna circuit board 7. Thereby, a compactified antenna is enabled to operate across two different broad frequency bands.

Abstract: An antenna system (1) with a particularly simple Con and a steep transmission angle, for lower frequencies in the short wave range. The inventive antenna system includes two antennae (2) which are interconnected by a control unit (4) and which together form a dipole antenna. This antenna system (1) is particularly suitable for mobile operation in vehicles.

Abstract: A new type of antenna is provided by combining a single monocone with one or more additional antennas. The additional antennas are longer than the monocone, or they are chosen from a list of antennas. The inventive combination antenna has a greater frequency bandwidth than any of the component antennas would when employed singly. The new antenna has a single RF feed point. The monocone and the other component antennas are all electrically connected together close to said feed point. A monocone is also known as a conical monopole.

Abstract: An antenna system is provided which employs RF and DC coupling across a dielectric. RF coupling is achieved using low cost and low loss RF coupler pairs such as quarterwave patches that are mounted opposite each other on either side of a dielectric. The feeds of the patches are aligned so as to be directly opposite each other, and the patches are mounted against the dielectric. A voltage booster circuit can be provided to increase input supply voltage for DC coupling that is adjustable to accommodate the thickness of the dielectric.

Abstract: A telematic vehicle antenna for dampening low frequency vibrations includes a shaft adapted to be mounted on a vehicle, wherein the shaft has a longitudinal axis and an outer surface, the outer surface has a configuration that surrounds and extends generally parallel to the longitudinal axis, and the diameter of the configuration defines the diameter of the shaft. The antenna further comprises a conductor substantially enclosed by the outer surface and an air turbulence generator in contact with the outer surface for dampening vibrations transmitted to a vehicle by the shaft, wherein the air turbulence generator extends helically in a direction generally parallel to the longitudinal axis, and the air turbulence generator extends radially outwardly from the outer surface of the shaft by a distance greater than or equal to about 10% of the diameter of the shaft. A method of dampening low frequency vibrations associated with telematic antennas is also disclosed.

Abstract: The present invention provides an antenna mounting device comprising mounting unit to supply compressive force between an antenna and a panel. The mounting unit includes a forcing cone and anchor and a member designed to supply compressive force such that the anchor and forcing cone are compressed into each other.

Abstract: A wideband antenna system is capable of radiating or receiving signals in a low-frequency band [Fbb, Fbh] covering more than one octave and a high-frequency band [Fhb, Fhh] with Fhb>=2Fbh comprising at least one power supply device (4) powering at least one upper radiating element (1) and at least one lower radiating element (2). The lower radiating element (2) is provided with at least one antenna assembly (10) adapted to radiating in the high-frequency band [Fhb, Fhh]. Application to RF signals.

Abstract: A mounting assembly is disclosed for mounting an antenna to a roof of a vehicle. The assembly includes a mounting plate with a mounting pad for mounting the antenna to the mounting plate, and at least one bracket to which the mounting plate is mounted. Each bracket is for being mounted to the roof of the vehicle. Each bracket may be a cross-bracket for extending between stringers on the vehicle or an angle-bracket for being mounted to a vertical surface on the vehicle, for example. The mounting plate and each bracket are each provided with a plurality of regularly spaced slots through which the mounting plate is mounted to the bracket. Each slot in the mounting plate extends for a distance generally along the periphery of the mounting plate, and each slot in each bracket extends for a distance generally longitudinally.

Abstract: A dual-band antenna assembly configured to be mounted on a dielectric substrate such as an automobile window glass. The dual-band antenna assembly is adapted to transmit and receive signals in two distinct frequency bands, particularly the cellular frequency band, 800-900 MHz and the PCS frequency band 1.8 GHz. The antenna assembly is further configured to couple signals in either frequency band through the dielectric so that signals originating on a first side of the dielectric substrate may be coupled to the antenna-radiating element located on the opposite side of the dielectric substrate and signals received by the antenna on the second side of the dielectric substrate may be coupled through the dielectric to a mobile telephone located on the first side of the substrate.

Abstract: An antenna device having a high gain is presented. The device includes an antenna element, a variable capacitor disposed closely to the antenna element and connected to the antenna element in series or parallel to form a resonance circuit, a tuning voltage supply terminal for supplying a tuning voltage for varying a capacitance of the variable capacitor, and an signal power terminal capable of at least one of sending a signal power to the resonance circuit and receiving a signal power from the resonance circuit.

Abstract: A radio frequency (RF) antenna of the present invention generally comprises an electrical conductor and a unitary metallic surface mounting structure. The electrical conductor, which performs the radiator function, is secured to the surface mounting structure so that the electrical conductor may use the surface mounting structure not only as a surface mount but additionally as a ground plane. The surface mounting structure is presented in a cross-configuration having outward extending arms. The arms perform the ground plane function and are bent to a desired angle to produce a desired radiation pattern and/or impedance. A plastic radome with a metallic insert is preferably used to cover the electrical conductor and to secure the electrical conductor to the surface mounting structure.

Abstract: The present invention includes an antenna rod, an antenna base which attaches the antenna rod so as to be capable of swiveling, a joint assembly which consists of a cylindrical member in an axial direction orthogonal to an axial direction of the rod at one end of the antenna rod, a pair of pivotal support portions provided so as to confront an upper portion of the antenna base so as to mount the joint assembly on a pivot in a swiveling manner, and a torsion spring which is provided with respect to the joint assembly and automatically returns the joint assembly to a predetermined swiveling position by giving the elasticity of itself even if a swiveling position of the joint assembly is changed due to an external force applied to the antenna rod.

Abstract: In a monopole antenna, an antenna element is fitted into a dielectric body having a predetermined relative dielectric constant. A wavelength of a propagation wave is shortened by the shortening coefficient of wavelength which corresponds to the predetermined relative dielectric constant of the dielectric body. In this case, the antenna length of the antenna element can be shortened, so as to be equal to the shortened wavelength of 1/n of the shortened wavelength, “n” being integer. Thus the monopole antenna is small-sized.

Abstract: A boot for an antenna assembly is disclosed. The antenna assembly includes an antenna mast having an antenna mast nut attached thereto, a tubular housing extending through an aperture in an automobile body, and a center conductor having a threaded stud attached at one end thereto received by the housing. The antenna mast nut is attached to the threaded stud, and an isolator is disposed between the housing and the center conductor. The boot includes a disk-shaped base member having a cylindrical recess and a first diameter formed from a lower surface thereof and a cylinder-shaped projection extending upwardly from an upper surface of the base member. The projection includes a bore having a second diameter smaller than the first diameter formed therethrough. The base member is operable to seal an upper surface of the isolator, a side surface of the isolator and an outer surface of the housing. The projection is operable to seal an outer surface of the center conductor.

Abstract: In order to transmit a signal received in a GPS antenna (20) to a GPS receiver body (30) through a glass plate (40), a signal transmission circuit (10) is divided into first and second signal transmission parts (11, 12). The first signal transmission part (11) is for transmitting a high frequency signal from an output terminal (20out) of the GPS antenna (20) to a first surface (41) of the glass plate (40). The second signal transmission part (12) is for transmitting the high frequency signal from a second surface (42) of the glass plate (40) to an input terminal (30in) of the GPS receiver body (30). The first signal transmission part (11) includes a first coaxial cable (111), a first electrode pair (112), a first balanced line (113), and a first balun (114). The second signal transmission part (12) includes a second coaxial cable (121), a second electrode pair (122), a second balanced line (123), and a second balun (124).

Abstract: Venting a closed compartment of a vehicle through an opening provided in a radio antenna base, which opening is aligned with a vent hole in the roof of the compartment.

Abstract: An antenna having a reversibly retained torque wrench. The torque wrench has a deformable lip region of the upper portion of its hollow inner region that allows the torque wrench to be reversibly retained, or coupled, within a wrench coupling region of the antenna during shipping and uncoupled after installation. The torque wrench also is capable of assisting in installing the antenna on its intended base structure by coupling a lower portion of its hollow inner region over a multi-sided torquing region of the lower attachment portion of the antenna and twisting its outer region to tighten the antenna onto its base structure.

Abstract: A capacitive signal coupling device to link an antenna radiating element to a peripheral device is disclosed. The capacitive signal coupling device includes a support and at least one conductive element on a first surface of the support. The conductive element is positioned to align with the radiating element of an antenna system and also includes a connector to enable a peripheral device to be connected to a transceiver antenna system without violating the integrity of the transceiver unit itself or without interrupting the operation of the transceiver system.

Abstract: An antenna mounting system includes a first mount having a positioning portion adapted to extend through an opening in a vehicle panel to position and hold the first mount relative to the vehicle panel, a second mount adapted to be disposed adjacent the opposite surface of the vehicle panel, and a connector adapted to couple the first and second mounts to each other. A conductive plate associated with one of the mounts forms a capacitive coupling with the vehicle panel and in conjunction with an inductor or resistor provides a selected resistance to ground. A connector screw in the system has a weakened section which during installation will break should excessive forces be applied thereto, thus to protect other components in the system.

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: 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: With the object of a single worker being able to mount an automobile antenna, side plates of a board bracket 9 with fixing plate are inserted into a rectangular hole formed in the base portion 3 so that [the side plates] are located on the opposite side surfaces of a rectangular projecting portion projecting from the bottom surface of the base portion 3. Spring pieces 4a are formed on these side plates. When the cylindrical projecting portion 13 extending from the rectangular projecting portion is inserted in the mounting hole formed in the roof panel, the spring pieces 4a formed on the side plates pass through the mounting hole and engage with the back side thereof. The antenna body is thereby temporarily fixed to the roof panel and a worker can remove his or her hands from the antenna body. The worker then goes within the vehicle body, screws the fixing nut 2 onto the cylindrical projecting portion 13, and can thereby fix the automobile antenna on the roof panel.

Abstract: An on-vehicle rod antenna device comprises an antenna rod, and an antenna base comprising a joint section to which the antenna rod is connected, in which the joint section comprises a tip portion, the tip portion is covered with the antenna rod in a state of connecting the antenna rod, and a substantially hemisphere recess or salient engaging with an inner circumferential surface of the antenna rod is formed on an outer circumferential surface of the tip portion.

Abstract: A windshield antenna including, in particular, a multirange coupler for transmitting the L band and band III for DAB reception between an antenna base and a connecting module through a pane is described. An L band amplifier and/or printed circuit boards, whose surfaces facing the pane, which are designed to be conductive, form the capacitive transmitter, and whose opposite surfaces carry connecting and/or circuit elements, are provided in the connecting module. As an alternative or in addition, integration of a slot antenna in a capacitive transmitter can also be provided.

Abstract: An antenna with a loading coil (26), is constructed with the spacing between turns of the coil and the diameter of the coil being precisely fixed in a mass-produced loading coil. Three rib members (80, 82, 84) are provided that have slots (90) that receive the turns of the coil, with the rib members being circumferentially spaced about about the axis (32) of the coil. The lower ends (94) of the rib members are fixed in radial position to the bottom (144) of the loading coil frame (140), and the upper ends (92) of the rib members are connected to a ring (130) that braces the tops of the rib member to each other and that expands the diameter of the upper portion of the coil, to form a rigid combination of coil and rib members.

Abstract: An antenna assembly comprising a radiating element which passively receives a signal fed by a vertically-stacked pair of asymmetrically-shaped, conductive cone elements mounted below the radiating element. The cone elements are centrally fed by a coaxial cable input at a common junction formed the apex of each cone element. This antenna assembly provides a low-profile antenna to transmit and receive radio frequency (RF) energy with high gain and desirable antenna patterns for data transmission in an in-building, wireless local area network. The antenna assembly can be mounted in a standard ceiling or wall-mounted enclosure, with the low-profile antenna extending beneath the surface of a conductive enclosure cover that serves as the ground plane for the antenna element. This configuration achieves high antenna gain with a downtilt-beam, omnidirectional radiation pattern, which is highly desirable in an in-building wireless local area network (WLAN) application.

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 comprising: an antenna structure having an input impedance, ZA, equal to a sum of a resistance and an active impedance; a circuit element having high circuit element impedance at an operating frequency range of the antenna, wherein the circuit element is coupled in parallel with the input impedance.

Abstract: In a monopole antenna, an antenna element is fitted into a dielectric body having a predetermined relative dielectric constant. A wavelength of a propagation wave is shortened by the shortening coefficient of wavelength which corresponds to the predetermined relative dielectric constant of the dielectric body. In this case, the antenna length of the antenna element can be shortened, so as to be equal to the shortened wavelength or 1/n of the shortened wavelength, “n” being integer. Thus the monopole antenna is small-sized.

Abstract: An antenna is provided for mobile communications. The antenna comprises first, and second bodies of a conductor, each having races whose length and diameter are designed in consideration of the antenna's frequency and gain characteristics; a spacer of a non-conductor interposed between the first and second bodies so as to keep a given space between the respective races of the first and second bodies according to the frequency and gain characteristics; an inner core fixing two bodies to each other with screwed parts respectively inserted into screwed grooves each passing through the races' bottom, and electrically connecting the first body to the second body; and a coupling part for feeder connection of a transmitting/receiving circuit for a mobile communications terminal.

Abstract: An on-vehicle rod antenna device comprises an antenna rod, and an antenna base comprising a joint section to which the antenna rod is connected, in which the joint section comprises a tip portion, the tip portion is covered with the antenna rod in a state of connecting the antenna rod, and a substantially hemisphere recess or salient engaging with an inner circumferential surface of the antenna rod is formed on an outer circumferential surface of the tip portion.

Abstract: A vehicle antenna mounting system whereby the antenna, associated antenna electronics (e.g., LNA) and RF and DC coupling are provided in an integral antenna assembly for installation on the exterior of a vehicle. The integral antenna assembly comprises a base section enclosing the associated antenna electronics and RF and DC coupling devices, and an antenna section pivotably mounted on the base section comprising the antenna. Two or more antennas are provided in the integral antenna assembly for SDARS reception on at least one satellite channel and a terrestrial channel. Another satellite channel can be provided for diversity purposes, or a global positioning system (GPS) satellite receiver for performing location services, among others, for the vehicle.

Abstract: An antenna adapted to be mounted to a motor vehicle for receiving digital audio signals from a satellite. The antenna includes a base configured to be secured to a vehicle, and an elongated mast constructed of a polymer material and including at least one antenna-forming conductor extending along the mast to receive signals. A spring member flexibly connects the elongated mast to the base, and an elastomeric cover extends between the base and the elongated mast and envelops the spring member. A flexible conductor is connected to the antenna-forming conductor and extends through the elastomeric cover.