Tyco Electronics Logistics Ag

Rangestar Wireless, Inc.

Rangestar Wirless, Inc.

Don Keilen

Greg F Johnson

Robert J Hill

Royden M Honda

A single or multiple band quarter wave resonator antenna assembly for a communications device including a resonator element as a substrate element having disposed thereupon at least a pair of conductor trace elements. The conductor trace elements are disposed upon opposite sides of the substrate element and are operatively coupled to the communications device. The antenna assembly further including a separate conductive member having an approximate &#xbc; wavelength or greater dimension, which may be defined as the internal printed wiring board ground plane of the communications device.

Single and multiband quarter wave resonator

An antenna device is disclosed, which is intended for a portable radio communication device. The communication device includes a signal generating component having a signal output, said output defining a signal generating circuit impedance. The antenna device includes a substantially planar conductor having an associated impedance and preferably extending in a first dimension greater than approximately one-quarter of a predetermined operational wavelength. The antenna device further includes a matching network which is coupled to the signal generating output. The matching network having a substantially planar dielectric substrate and a conductive meander element and a conductive trace element, wherein said matching network transforms the impedance of the signal generating component to approximate the impedance of the planar conductor element.

Broadband antenna assembly of matching circuitry and ground plane conductive radiating element

An antenna assembly including a resonator element which is operatively connected to the ground plane of a wireless communication device (WCD) is described. The resonator element comprises a flexible resonator support substrate of dielectric material which supports a conductive element or portion. The flexible nature of the substrate facilitates coupling to the ground plane of a WCD at a variety of locations including the interior, the exterior, or within a portion of the housing of the WCD itself. The resonator element may be provided with a dielectric support element which operatively connects the resonator element to the ground plane of a printed wiring board of a WCD. The support element includes a predetermined support edge portion which helps maintain the resonator element in a preferred predetermined shape, and a bottom edge with a conductive strip portion which is used to operatively connect the support element to a ground plane. The resonator element includes a conductive portion which may take several embodiments. In one preferred embodiment, the conductive portion is a wire member which is coiled about the flexible resonator support substrate. In another preferred embodiment, the conductive portion includes a conductive channel-shaped layer and at least one trace or line spanning the sides of the channel-shaped layer. In another preferred embodiment, the conductive portion includes a conductive layer deposited on the flexible resonator support substrate in an array pattern. All of the preferred resonator embodiments include a discrete electrical connection location which is operatively connected to separate signal and ground lines, and whose position may be varied depending upon the frequency ranges and performance requirements.

Flexible substrate wide band, multi-frequency antenna system

A compact single or multiple band antenna assembly for wireless communications devices. One multi-band embodiment includes a high frequency portion and a low frequency portion, both fed at a common point by a single feed line. Both portions may be formed as a single stamped metal part or metallized plastic part. The overall size is suitable for integration within a wireless device such as a cell phone. The low frequency portion consists of two resonant sections which are stagger tuned to achieve a wide resonant bandwidth, thus allowing greater tolerance for manufacturing variations and temperature than a single resonant section, and is useful for single band antennas as well as multi-band antennas where it may be used to enhance bandwidth for both sections of a dual band antenna as well. The resonant sections for single or multi-band antennas operate in conjunction with a second planar conductor, which may be provided by the ground trace portion of the printed wiring board of a wireless communications device. The antenna assembly provides a moderate front-to-back ratio of 3-12 dB and forward gain of &plus;1 to &plus;5 dBi. The front to back ratio reduces the near field toward the user of a hand held wireless communications device, thus reducing SAR (specific absorption rate) of RF energy by the body during transmit. The antenna pattern beamwidth and bandwidth are increased for a handset during normal user operation, as compared to a half wave dipole.

Single or dual band parasitic antenna assembly

A diversity antenna structure for a wireless communication device for receiving and transmitting communication signals is provided. The antenna structure including a dielectric substrate defining a pair of major surfaces and having a conductive reflector element disposed upon one of the major surfaces of the dielectric substrate, said reflector element being operatively coupled to a pair of shield conductors of coax feedlines. The antenna further including a plurality of serpentine radiator elements conductively coupled to the reflector element. The antenna assembly also including a pair of transmission lines disposed upon the other major surface of the dielectric substrate substantially opposite the reflector element, each of the pair of transmission lines coupled to one of the center conductors of the coax feedlines, and a pair of conductive balun structures disposed upon the dielectric substrate and coupled to the pair of transmission lines, the baluns being disposed substantially opposite the plurality of serpentine radiators.

Diversity antenna system for lan communication system

An antenna assembly for a wireless communication device for receiving and transmitting a communication signal is disclosed. The wireless communication device having a ground plane element and a feedline conductor, said antenna assembly including a configured radiating conductor element having a pair of opposed ends disposed proximate the ground plane element and an intermediate extending portion disposed away from the ground plane element to define an interior region, said first end operatively coupled to the ground plane element, said second end capacitively coupled to the ground plane element, and said intermediate extending portion operatively coupled to the feedline conductor at a feedpoint between the first end and the second end.

Capacitively-tuned broadband antenna structure

An asymmetric dipole antenna assembly is provided for wireless communications devices, and includes separate upper and lower conductor traces and a low impedance feedpoint at the junction of the conductor traces. The upper conductor trace may include a matching network and may be printed on a planar printed circuit board mounted proximate the top of the a hand-held wireless transceiver. The upper conducting trace provides &frac14; wave resonance over a desired frequency range and a 50 ohm input impedance for the antenna. The lower conductor trace may be provided by the ground trace of the wireless device circuitry, requiring only a minimum effective trace length of &frac14; wavelength at the lowest frequency of operation. Polarization of the antenna is determined by the orientation of the longest dimension of the lower conductor.

Growing community of inventors

Sparks, NV, United States of America

Don Keilen