| Patent Number |
Title Of Patent |
Date Issued |
| D472234 |
Vehicle mounted antenna |
March 25, 2003 |
|
| D415497 |
Dual band antenna base |
October 19, 1999 |
|
| D399847 |
Combined antenna and base |
October 20, 1998 |
|
| 6690330 |
Glass-mounted coupler and passive glass-mounted antenna for satellite radio applications |
February 10, 2004 |
| An antenna system operable to receive radio frequency signals and operable to couple radio frequency energy through a dielectric panel. The system includes an exterior radio frequency coupling module having a plate and a shield electrically coupled to the plate. The exterior coupling mod |
| 6665332 |
CDMA geolocation system |
December 16, 2003 |
| A geolocation system for geolocating a mobile transceiver operating in a CDMA communication system is disclosed having improved time of arrival extraction which allows the extracting of time of arrival information of weak CDMA emissions. The improved time of arrival extraction is acc |
| 6608597 |
Dual-band glass-mounted antenna |
August 19, 2003 |
| 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 |
| 6535086 |
Dielectric tube loaded metal cavity resonators and filters |
March 18, 2003 |
| Dielectric tube loaded metal cavity resonators and filters having a dielectric tube resonator extending substantially the full height of the metallic cavity are disclosed herein. The resonators and filters achieve low insertion loss in a size substantially smaller than conventional d |
| 6522225 |
Coupling mechanisms for dielectric resonator loaded cavity filters |
February 18, 2003 |
| A dielectric loaded cavity filter having a housing and a cover and defining at least two adjacent cavities having respective dielectric resonators mounted therein and separated by a transverse partition defining a coupling window in the housing. In one form, the coupling window has two |
| 6404775 |
Band-changing repeater with protocol or format conversion |
June 11, 2002 |
| A repeater allows terminals of a first communications system, employing a first air protocol or radio interface, to communicate with terminals of a second communications system, employing a second air protocol or radio interface different from the first. Where the first and second air |
| 6215451 |
Dual-band glass-mounted antenna |
April 10, 2001 |
| 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 surfa |
| 6160460 |
Self-tuning resonant cavity filter |
December 12, 2000 |
| In one form of the invention, a resonant cavity filter (50) is disclosed, comprising an input port (210) for receiving an input signal, a dielectric resonator (204) in a cavity, the dielectric resonator operable to receive an input signal from the input port and further operable to produ |
| 6138024 |
Dynamic channel selection in a cellular communication system |
October 24, 2000 |
| A method of selecting allocated communication channels for use by a cellular auxiliary personal communication system (CAPCS) comprising periodically collecting relative signal strength indication (RSSI) measurements for all allocated communication channels, periodically determining t |
| 6037912 |
Low profile bi-directional antenna |
March 14, 2000 |
| A low profile bi-directional antenna is provided for mounting directly to a metal structure, or some other conductive or semi-conductive surface. The antenna includes an insulating antenna tray, a conductive ground plane mounted to a surface of the antenna tray, first and second radiatin |
| 5963179 |
Variable azimuth mounting assembly for panel antennas |
October 5, 1999 |
| A bracket assembly for fixedly mounting an RF antenna to a support structure while permitting azimuth adjustment comprising a first bracket member adapted for fixed securance to the support structure and having a forwardly extending plate defining a first bolt hole and a spaced away |
| 5940044 |
45 degree polarization diversity antennas |
August 17, 1999 |
| A 45 degree polarization diversity antenna having improved beamwidth characteristics. The antenna includes a plurality of dipole sub-arrays each sub-array comprising four dipole elements arranged in a diamond shape. Two dipole elements in each sub-array are arranged at an angle of ap |
| 5934606 |
Knock-down, reusable modular transmission cable reel and method of making same |
August 10, 1999 |
| A knock-down, reusable modular transmission line cable reel assembly having at least two side-by-side compartments for coiling transmission line, and including a pair of spaced apart, generally circular parallel end flanges, at least one intermediate, generally circular partition ring, a |
| 5917455 |
Electrically variable beam tilt antenna |
June 29, 1999 |
| An antenna assembly having an operating frequency and a vertical radiation pattern with a main lobe axis defining a downtilt angle with respect to the earth's surface. The antenna assembly comprises a plurality of antennas in first, second, and third antenna groups disposed along a b |
| 5898410 |
Pre-tuned hybrid logarithmic yagi antenna system |
April 27, 1999 |
| A hybrid logarithmic yagi antenna system characterized by the absence of a balun or other conventional log periodic yagi antenna system balanced feed and impedance matching element. The reflector element is configured as a supporting conductive tray which provides a rugged mounting mecha |
| 5896107 |
Dual polarized aperture coupled microstrip patch antenna system |
April 20, 1999 |
| A dual polarized aperture coupled patch antenna system having a back plate, a ground plane and a patch plane. The patch plane has a conductive patch layer forming a plurality of conductive patches on one side. The ground plane has a slot layer on one side and a microstrip feed network la |
| 5825267 |
Filter tuning assmebly |
October 20, 1998 |
| A tuning assembly for an RF filter having an internal cavity. The tuning assembly is mounted on one of the filter walls and comprises an adjustment screw threadedly secured in the wall and having an inner end in the cavity and an outer free end external of the wall, a generally circular |
| 5805033 |
Dielectric resonator loaded cavity filter coupling mechanisms |
September 8, 1998 |
| A dielectric resonator loaded cavity filter comprises a housing having an exterior and an interior, the housing interior including at least two adjacent cavities having dielectric resonators mounted therein. The adjacent cavities are separated by a transverse partition having a coupl |
| 5798676 |
Dual-mode dielectric resonator bandstop filter |
August 25, 1998 |
| An electromagnetic bandstop filter comprises a microwave circuit, at least one microwave resonator, coupling means that couples electromagnetic energy to and from the microwave resonator, and an impedance transformer coupled to, and in series with, the coupling means, wherein the tra |
| 5774789 |
RF communication signal distribution system and method |
June 30, 1998 |
| A system and method for distribution of RF communication signals. First RF communication signals are downconverted in a first signal processing subsystem and transmitted to a second signal processing subsystem via twisted-pair cable. The downconverted first RF communication signals are |
| 5724051 |
Antenna assembly |
March 3, 1998 |
| An antenna assembly having a base plate and at least one integrally formed antenna array mounted thereon, the antenna array having a pair of dipole antennas and an elongated transmission line, one of the dipole antennas being integrally formed with each end of the transmission line, with |
