Delay element with a perturber displaceable between first...

Details Delay element with a perturber displaceable between first... Delay element with a perturber displaceable between first...

2006-11-30

2011-12-06

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

Reexamination Certificate

active

08072296

ABSTRACT:
A differential delay element for use, e.g., in selectively delaying RF signals in telecommunication systems includes a first microstrip circuit and a second microstrip circuit arranged side-by-side in a facing relationship. The first microstrip circuit defines a first delayed travel path for a first signal from a first input port to a first output port and the second microstrip circuit defines a second delayed travel path for a second signal from a second input port to a second output port. A perturber is arranged between the first and second microstrip circuits, displaceable toward and away from the first and second microstrip circuits, so that when the distance of the perturber to one of the microstrip circuits increases, the distance of the perturber to the other of the microstrip circuits decreases and viceversa. The position of the perturber between the first and second microstrip circuits defines the differential delay, namely the difference (Δτ=τ1−τ2) between the times (τ1,τ2) experienced by the two signals in travelling their travel paths through the delay device.

REFERENCES:
patent: 2669694 (1954-02-01), Vogeley, Jr. et al.
patent: 2774946 (1956-12-01), McGillem et al.
patent: 2775741 (1956-12-01), Corbell
patent: 2779003 (1957-01-01), Allen et al.
patent: 2951218 (1960-08-01), Arditi
patent: 3456355 (1969-07-01), Cumming et al.
patent: 3555232 (1971-01-01), Bleackley
patent: 4613836 (1986-09-01), Evans
patent: 4788515 (1988-11-01), Wong et al.
patent: 4973925 (1990-11-01), Nusair et al.
patent: 4992762 (1991-02-01), Godshalk et al.
patent: 5949303 (1999-09-01), Arvidsson et al.
patent: 6075424 (2000-06-01), Hampel et al.
patent: 6441700 (2002-08-01), Xu
patent: 6504450 (2003-01-01), Kim et al.
patent: 6816668 (2004-11-01), McDonald et al.
patent: 7283015 (2007-10-01), Rockenbauch
patent: 2002/0057136 (2002-05-01), Marketkar et al.
patent: 2003/0042997 (2003-03-01), Baik et al.
patent: 2004/0075967 (2004-04-01), Lynch et al.
patent: 2005/0052821 (2005-03-01), Fujii et al.
patent: 591369 (1947-08-01), None
patent: 2001-68901 (2001-03-01), None
patent: WO 89/07837 (1989-08-01), None
patent: WO 2004/086730 (2004-10-01), None
patent: WO 2006/037364 (2006-04-01), None
International Search Report dated Jan. 4, 2007, submitted in corresponding U.S. Appl. No. 12/227,833 3 pages.
Yun et al.; “A Low-Loss Time-Delay Phase Shifter Controlled by Piezoelectric Transducer to Perturb Microstrip Line”, IEEE Microwave and Guided Wave Letters, vol. 10, No. 3, pp. 96-98, (2000).
Yun et al.; “Time-Delay Phase Shifter Controlled by Piezoelectric Transducer on Coplanar Waveguide”, IEEE Microwave and Wireless Components Letters, vol. 13, No. 1, pp. 19-20, (2003).
Yun et al.; “Analysis and Optimization of a Phase Shifter Controlled by Piezoelectric Transducer”, IEEE Transactions on Microwave Theory and Techniques, vol. 50, No. 1, pp. 105-111, (2002).
W.T. Joines; “A Continuously Variable Dielectric Phase Shifter”, IEEE Transactions on Microwave Theory and Technique, pp. 729-732 (1971).

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