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
Chromene compound
Method for designing sunlight-reflection and heat-radiation multilayer film
Content protection apparatus and content encryption and decryption apparatus using white-box encryption table
Methods of diagnosing a plasmodium infection
High-frequency power amplifier
Image forming apparatus and information processing apparatus
Plants and seeds of hybrid corn variety CH817100
  Randomly Featured Patents
System, method, and computer program product for saving and investing through use of transaction cards
Cup holder with a spill-collecting plate
Computer peripheral with integrated infrared therapy and method of making same
Method and apparatus for authentication in a wireless telecommunications system
Lapping system having a polymeric lapping tool
Thermally actuatable electrical switch construction
Treatment for obesity
Method and system for virtual powerline local area networks
Portable photocopy apparatus and method of use
Seat sliding apparatus for vehicle and a method of making a seat sliding apparatus for a vehicle