Wilson Electronics, Inc.

Alan Van Buren

Richard M Kline

Patrick Lee Cook

James W Wilson

Don E Dinsdale

An antenna minimizes radiation from the outer conductor () of a coaxial cable () that is coupled to the antenna by providing a balancing tab () that lies near the connection () of the cable outer conductor () to the antenna. One antenna includes a Yagi structure () constructed of a plate of metal that forms a long boom () and a plurality of directors () extending laterally across the boom, with an electrical coupling loop mounted at a rear region of the Yagi structure. The coupling loop includes a folded dipole in the form of a metal coupling plate that forms a loop () with a gap (), the loop having a laterally elongated front loop end (). The Yagi structure is formed with a balancing tab () that lies forward of the loop, that has a lateral length (D) less than half that of one of the directors, and that extends from only one side () of the boom which is the side to which the outer coax conductor () is connected to the loop. The metal coupling plate lies facewise adjacent to a face () of the Yagi plate, with a dielectric spacer () between them.

Yagi antenna with balancing tab

Enhanced yagi antenna

Yagi antenna

Apparatus for boosting the signal between a cell phone () and a cell site (), which includes an amplifier () that continually operates at a fixed gain. A power detector () controls an attenuator () that can be switched to pass the amplified signal through an attenuator () of moderate resistance, or through an attenuator () of zero resistance so the power output is boosted within the limits allowed under cell phone system standards.

Enhanced gain selected cell phone booster system

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 ( ) of a length that is about &frac12; wavelength at the lower frequency to effectively radiate at that frequency. An upper PRD (phase reversal device) ( ) located along the upper conductor portion divides it into top and bottom parts ( ) each of about &frac12; wavelength at the higher frequency, the PRD providing a 180&deg; phase reversal at the higher frequency without affecting the lower frequency. A lower conductor portion ( ) includes a coil ( ) that produces a phase reversal at the lower frequency, a lower PRD ( ), and a short straight conductor part ( ). A lower conductor part ( ) extends through the lower PRD ( ) and connects through a mount member ( ) to a coaxial feed.

Antenna with multiple radiators

Apparatus is provided for transmitting signals between a cell phone (P), through a coaxial cable ( ) through a window inner coupling ( ) mounted on the inner side (I) of a window, to an outer coupling ( ) on the outer side (O) of the window which connects to an antenna ( ), which efficiently couples signals of both the lower cell phone frequency band of about 850 MHz and the high cell phone frequency band of about 1920 MHz that are in current use. The window coupling includes an electrically conductive inner plate ( ) lying substantially facewise adjacent to the window and a conductive box device ( ) lying around the inner face of the inner plate. The inner plate is of substantially rectangular shape, with a plurality of sides ( ) extending in series around the inner plate. The length of a path ( ) extending from a connection location ( ) to corners ( ) approximately equals one-quarter wavelength of the higher cell phone frequency, while the length of a path ( ) around the periphery of the plate approximately equals one-quarter wavelength of the lower cell phone frequency.

Dual frequency window mount antenna

Apparatus is provided for coupling to a hand-held transceiver such as a cellular phone that is being operated in a radio frequency-shielded environment such as in an automobile, to transfer energy between the transceiver and an auxiliary antenna that is not shielded from the surroundings. The apparatus includes a pair of capacitor coupling elements (,) that are positioned adjacent to each of the two radiating elements (,) of the hand-held transceiver, and a coaxial cable (,) that connects the coupling elements to the auxiliary antenna. Each coupling element includes a sheet of electrically conductive material lying adjacent to a corresponding radiating element of the transceiver without surrounding the transceiver. A piece of releasable fastening material such as VELCRO is fixed to the transceiver, and a corresponding releasable fastening piece is fixed to the coupler that includes the coupling elements, to enable the user to quickly mount the coupling to transmit and receive from within a vehicle and to quickly disconnect for use of the transceiver outside the vehicle.

Growing community of inventors

Cedar City, UT, United States of America

Alan Van Buren