Measurements on the Properties of Microwave Integrated Circuits

Caulton, M.; Hershenov, B.; Knight, S.P.; Napoli, L.S.

doi:10.1109/gmtt.1969.1122655

Cited by 2 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Classically, it leads to the voltage standing-wave ratio (VSWR) since VSWR = (1 7. The value of Z 0 is then obtained from the following expression [16]:…”

Section: Characteristic Impedance Of Our Stripline Field Applicatormentioning

confidence: 99%

See 1 more Smart Citation

Long and uniform plasma columns generated by linear field-applicators based on stripline technology

Pollak

Moisan

Zakrzewski

2007

Plasma Sources Sci. Technol.

View full text Add to dashboard Cite

Long plasma columns generated by high-frequency (HF) fields and extending over distances longer than the free-space wavelength of the applied electromagnetic (EM) field are of interest in various applications. A commonly used method to achieve such long plasma columns calls for the propagation of EM surface waves that use the plasma as their propagating medium. In such a case, the HF field applicator, called a wave launcher, is much shorter than the actual length of the plasma column. Long plasma columns can also be sustained by using field applicators that run along the full length of the discharge tube. Most such linear applicators rely on waveguide components. However, it is possible to use transverse electric magnetic planar-transmission-lines based on stripline technology to design efficient linear field applicators. Using such an approach, we have developed a new type of HF linear field applicator that operates on a relatively wide frequency range (typically, 200-2450 MHz). Comparison of the discharge that it generates with a surface-wave discharge (SWD) sustained under similar operating conditions shows that the discharge volume is larger than that obtained with a SWD at the same power level, hence a lower gas temperature and a plasma column more axially uniform, two valuable features for some applications. The contraction of these plasma columns is shown to occur at higher gas pressures than with SWDs. All these measurements are carried out in argon as the discharge gas.

show abstract

“…Classically, it leads to the voltage standing-wave ratio (VSWR) since VSWR = (1 7. The value of Z 0 is then obtained from the following expression [16]:…”

Section: Characteristic Impedance Of Our Stripline Field Applicatormentioning

confidence: 99%

“…Figure16. Estimated sheath width calculated using relation(7) as a function of field frequency, assuming that the electron density is either n c , the critical one, or ten times this value (dotted and full lines, respectively).…”

mentioning

confidence: 99%