Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Leaky wave antenna with radiating structure including fractal loops










Image Number 10 for United States Patent #7250916.

An antenna is provided for acquiring RF signals from various satellite ranging systems including GPS, GLONASS, GALILEO and OmniSTAR.RTM.. The antenna configuration includes a radiating structure of multi-arm spiral slots terminated with fractal loops. A leaky wave microstrip spiral feed network is used to excite the radiating structure of the antenna. The fixed beam phased array of aperture coupled slots is optimized to receive a right hand polarized signal. The proposed antenna is made out of a single PCB board. The antenna has a very uniform phase and amplitude pattern in the azimuth plane from 1.15 to 1.65 GHz, therefore providing consistent performance at GPS, GLONASS, GALILEO and OmniSTAR.RTM. frequencies. The antenna also has a common phase center at the various frequencies from 1175 MHz to 1610 MHz and substantially the same radiation pattern and axial ratio characteristics.








 
 
  Recently Added Patents
Pipette device
Perfume bottle
Method and apparatus for monitoring wireless communication in hearing assistance systems
System and method for providing private demand-driven pricing
Digital fine delay processing
Rear body panel cover for a motor vehicle
Message processing method and apparatus based on the SIP protocol and an IP communication system
  Randomly Featured Patents
Device and methods for transmission of electromagnetic energy
Method for fiber loading a chemical compound
Gas suspension system
Matching and cleansing of part data
Making formed milled cutters and key cutters
Providing information pertaining usage of a mobile wireless communications device
Method of increasing yield in OFETs by using a high-K dielectric layer in a dual dielectric layer
Cascoded bi-directional high voltage ESD protection structure
Protective hygienic underwear
Pluggable connector with a high density structure