Resources Contact Us Home
Left-handed nonlinear transmission line media

Image Number 10 for United States Patent #7135917.

A left-handed nonlinear transmission line system has multiple nonlinear capacitors connected in series between input and output terminals and multiple inductances connected in parallel between the nonlinear capacitors and a return conductor extending between the input and output terminals. The nonlinear capacitors have a capacitance characteristic that changes with the voltage applied across the capacitors, such as a capacitance that decreases with increasing voltage. A radio frequency signal source is coupled to the input terminals and provides power at a selected drive frequency. Depending on the frequency of the drive signal with respect to the Bragg cutoff frequency of the nonlinear transmission line, the output signal may include a strong signal component at the third harmonic of the input drive signal frequency, components at higher harmonics, or components at fractional frequencies of the input drive signal frequency. Parametric generation of other signal waves that are phase matched with the signal wave produced by the input drive signal is also possible under appropriate conditions. The left-handed nonlinear transmission line system generates such output signal frequencies with high efficiency.

  Recently Added Patents
Process for producing .beta.-sialon fluorescent material
Fixing device and image forming apparatus
Driving apparatus having an optical sensor and a thermal sensor for thermal and aging compensation of backlight module and driving method of backlight module
System and method for leveraging independent innovation in entertainment content and graphics hardware
Computer system for routing package deliveries
Apparatus for preventing overcharge of a battery
Memory device and method for repairing a semiconductor memory
  Randomly Featured Patents
Disposable undergarment
Compile time opcodes for efficient runtime interpretation of variables for database queries and DML statements
Device for preventing thin apparatus from overturning
Automatic focus detection system
Cooling system for an internal combustion engine
Automatic neighbor list generation for long-term evolution (LTE)
Single screen display system with multiple virtual display having prioritized service programs and dedicated memory stacks
System and method for bandwidth reservation protocol for spatial reuse in a wireless communication network
Low voltage arc formation in railguns
Cord hook