Wave transmission lines and networks – Attenuators
Reexamination Certificate
2007-10-02
2007-10-02
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Attenuators
C333S035000
Reexamination Certificate
active
11143147
ABSTRACT:
A microwave attenuator circuit is disclosed, including a combination of a plurality of quarter wave transformers and a plurality of resistive elements.
REFERENCES:
patent: 3091743 (1963-05-01), Wilkinson
patent: 3648200 (1972-03-01), Harrison et al.
patent: 3859609 (1975-01-01), Couvillon et al.
patent: 4394633 (1983-07-01), Klein
patent: 5204643 (1993-04-01), Verronen
patent: 5345199 (1994-09-01), Glenn et al.
patent: 5506589 (1996-04-01), Quan
patent: 5712607 (1998-01-01), Dittmer et al.
patent: 6657514 (2003-12-01), Tokudera
J. Reed and G. J. Wheeler, “A Method of Analysis of Symmetrical Four Port Network,” IRE Trans. MTT, vol. MTT-4, pp. 246-252, Oct. 1956.
L.I. Parad and R.L. Moyniham, “Split-Tee Power Divider,” IEEE Trans. MTT, vol. MTT-13, pp. 91-95, Jan. 1965.
Mader, T., et al, “Switched-Mode High-Efficiency Microwave Power Amplifiers in a Free-Space Power-Combiner Array”, IEEE MTT, vol. 46, No. 10, Oct. 1998, pp. 1391-1398.
Watson, P., et al, “Ultra-High Efficiency Operation Based on an Alternative Class-E Mode”, IEEE GaAs IC Symposium Digest 2000, pp. 53-56.
Tayrani, R., “A Monolithic X-Band Class-E Power Amplifier”, IEEE GaAs IC Symposium Digest 2001, pp. 205-208.
Quan Clifton
Schiller Stephen M.
Zhang Yanmin
Alkov Leonard A.
Lee Benny
Raytheon Company
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