Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Slotted cavity antenna










Image Number 3 for United States Patent #4242685.

A resonant cavity having at least one radiating antenna slot formed in a wall of the cavity includes an electrically conducting plate disposed within the cavity and substantially spaced from all internal cavity walls so as to effectively lengthen the electrical resonant dimensions of the cavity for a given physical size. This slotted cavity antenna permits the use of simplified feeding structures, provides a more efficient antenna structure and reduces the necessary physical dimensions of the structure for operation at a given frequency.








 
 
  Recently Added Patents
Device and method for quantizing and inverse quantizing LPC filters in a super-frame
Systems and methods for managing and utilizing excess corn residue
Terminal device, system and computer readable medium
Visual processing apparatus and visual processing method
Method and system for leveraging the power of one's social-network in an online marketplace
Computerized on-board system for controlling a train
Radiation-curable ink composition, ink jet recording method, and recorded matter
  Randomly Featured Patents
Sterilizing method, sterilizing apparatus, and air cleaning method and apparatus using the same
Dresser
Flashing light-emitting device with a wind generator
Polyhydro derivatives of 10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine
1-carbacephalosporin antibiotics
Fuel evaporative emission control apparatus for vehicles
Vehicle with energy converter
Die attach method and microarray leadframe structure
Priority order processing circuit and method for an MPEG system
Highly sensitive multimeric nucleic acid probes