Delay element with a perturber displaceable between first and second microstrip circuits
First Claim
1. A delay element comprising:
- a first microstrip circuit comprising a first delayed travel path for a first signal from a first input port to a first output port, and a second microstrip circuit comprising a second delayed travel path for a second signal from a second input port to a second output port, said first and second microstrip circuits being arranged side-by-side in a facing relationship; and
a perturber arranged between said first and second microstrip circuits, said perturber being displaceable toward and away from said first and second microstrip circuits along an axis perpendicular to said first and second microstrip circuits, whereby, when the distance of said perturber to one of said first and second microstrip circuits increases, the distance of said perturber to the other of said first and second microstrip circuits decreases and vice versa,the position of said perturber between said first and second microstrip circuits defining the difference between the time experienced by said first signal in travelling said first delayed travel path and the time experienced by said second signal in travelling said second delayed travel path.
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Accused Products
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.
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Citations
15 Claims
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1. A delay element comprising:
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a first microstrip circuit comprising a first delayed travel path for a first signal from a first input port to a first output port, and a second microstrip circuit comprising a second delayed travel path for a second signal from a second input port to a second output port, said first and second microstrip circuits being arranged side-by-side in a facing relationship; and a perturber arranged between said first and second microstrip circuits, said perturber being displaceable toward and away from said first and second microstrip circuits along an axis perpendicular to said first and second microstrip circuits, whereby, when the distance of said perturber to one of said first and second microstrip circuits increases, the distance of said perturber to the other of said first and second microstrip circuits decreases and vice versa, the position of said perturber between said first and second microstrip circuits defining the difference between the time experienced by said first signal in travelling said first delayed travel path and the time experienced by said second signal in travelling said second delayed travel path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of delaying electrical signals comprising the steps of:
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defining a first delayed travel path for a first signal from a first input port to a first output port in a first microstrip circuit as well as a second delayed travel path for a second signal from a second input port to a second output port in a second microstrip circuit; arranging said first and second microstrip circuits side-by-side in a facing relationship with a perturber arranged between said first and second microstrip circuits; and displacing said perturber toward and away from said first and second microstrip circuits along an axis perpendicular to said first and second microstrip circuits, whereby when the distance of said perturber to one of said first and second microstrip circuits increases, the distance of said perturber to the other of said first and second microstrip circuits decreases and vice versa, the position of said perturber between said first and second microstrip circuits defining the difference between the time experienced by said first signal in travelling said first delayed travel path and the time experienced by said second signal in travelling said second delayed travel path.
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Specification