Interferometric load-pull tuner

Details Interferometric load-pull tuner Interferometric load-pull tuner

2006-01-31

2006-01-31

Jones, Stephen E. (Department: 2817)

Wave transmission lines and networks

Automatically controlled systems

Impedance matching

C333S263000, C324S642000

Reexamination Certificate

active

06992538

ABSTRACT:
The present invention discloses an interferometric load-pull tuner system consisting of a radio-frequency (RF) or microwave transmission line containing a pair of identical RF slugs sliding on the central conductor, said slugs surrounding partially the central conductor, being extractable from the transmission line, and the corresponding exact three-terms cascade procedure based on the scattering transfer parameters (T-Parameters) multiplication in order to calculate the scattering parameters (S-Parameters) of the interferometric load-pull tuner for any positions of the two slugs in the transmission line. The interferometric load-pull tuner of this invention provides improved measurement accuracy, enhanced reliability, and allows lower cost of manufacture and maintenance.

REFERENCES:
patent: 6674293 (2004-01-01), Tsironis
patent: 2000221233 (2000-08-01), None
Browne, “Coaxial Tuners Control Impedances to 65 GHz”, Microwaves and RF, Jan. 2003.

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