Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Circuit board voltage plane impedance matching










Image Number 12 for United States Patent #6150895.

A circuit board having a transition region at its perimeter. The transition region provides a deliberate increase in impedance between the voltage and ground plane from the interior side of the transition region where the board impedance is approximately that of the board impedance at an interior region of the circuit board to the edge side of the transition region where the impedance level approximates or is slightly less than that of surrounding air. In one example, the voltage plane in the transition region has a geometric configuration that provides a decrease in plane material (such as a hole, stripe, or triangle pattern) from the interior side to the edge side of the transition region. With other examples, the distance between the voltage and ground plane increases from the interior side to the edge side of the transition region.








 
 
  Recently Added Patents
Solid-state image capture device and image capture apparatus
Spread spectrum communication system and transmission power control method therefor
Paper product with surface pattern
Image enhancement based on multiple frames and motion estimation
Communication apparatus and communication system
Liquid low temperature injection molding process
Method for determining the local position of at least one mobile radio communication device based on predetermined local positions of adjacent radio communication devices, associated radio com
  Randomly Featured Patents
Quality control system for monitoring and control of contaminants in recycled plastics
Transparent on-demand certificate provisioning for secure email
Compositions and methods for preventing and treating rotaviral infections
Sealing system
Photosensitive polymer composition, method of producing pattern and electronic parts
Vehicle monitoring apparatus
Rate of angular acceleration sensor
Pattern-tufted, fusion-bonded carpet and carpet tile and method of preparation
Compact multi-band antennas
Semiconductor laser