Patent ID: 7292191
Filing Date: 2007-11-06
Classification: H01Q,H05H

Abstract:
1. A reduced noise, configurable plasma device comprising: transceiver means operative to transmit and or receive electromagnetic signals having a selected operating frequency through the device; plasma means having a plasma ionizable to a plasma frequency; and control means operative to control one of the plasma frequency of the plasma means and the operating frequency of the electromagnetic signals based on the other one of plasma frequency and operating frequency so that the operating frequency is equal or approximate to the plasma frequency times a geometric factor characteristic of the device or the plasma frequency is equal or approximate to the operating frequency times an inverse of the geometric factor, wherein the device has a cross sectional width that is less than a wavelength of the electromagnetic signals, wherein the control means comprises: wherein the transceiver means is adapted to transmit and or receive electromagnetic signals in a period between ionization of the plasma with the energy pulses.