Time delay filters
First Claim
1. A time delay filter comprising:
- a substrate comprising a first isolative layer, the first isolative layer comprising a first surface and a second surface, the second surface substantially parallel to the first surface;
a resonator, comprising a capacitive element coupled to an inductive element, the inductive element comprising;
a first conductive region coupled to the first surface of the first isolative layer,a second conductive region coupled to the second surface of the first isolative layer,a first via that is electrically coupled to and extends between the first and second conductive region;
a second via that is electrically coupled to and extends between the first conductive region and a first portion of the capacitive element;
a third via that is electrically coupled to and extends between the second conductive region and a second portion of the capacitive element;
wherein the first conductive region, the first via, the second conductive region, the second via, the capacitive element, and the third via form a loop;
a first coupling point, electrically coupled to the first conductive region of the resonator; and
a second coupling point, electrically coupled to the second conductive region of the resonator.
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Accused Products
Abstract
A time delay filter comprising a substrate comprising a first surface and a second surface opposite the first surface; a first LC resonator coupled to the substrate and comprising a first coupling point, a first capacitive element electrically coupled between the first coupling point and the first conductive region, and a first inductive element coupled between the first coupling point and the first conductive region, and comprising a first and second inductor tap; and a second LC resonator coupled to the substrate and comprising a second coupling point, a second capacitive element electrically coupled between the second coupling point and the first conductive region, and a second inductive element electrically coupled between the second coupling point and the first conductive region wherein the system group delays a signal output at a second coupling point relative to a signal input at the first coupling point.
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Citations
19 Claims
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1. A time delay filter comprising:
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a substrate comprising a first isolative layer, the first isolative layer comprising a first surface and a second surface, the second surface substantially parallel to the first surface; a resonator, comprising a capacitive element coupled to an inductive element, the inductive element comprising; a first conductive region coupled to the first surface of the first isolative layer, a second conductive region coupled to the second surface of the first isolative layer, a first via that is electrically coupled to and extends between the first and second conductive region; a second via that is electrically coupled to and extends between the first conductive region and a first portion of the capacitive element; a third via that is electrically coupled to and extends between the second conductive region and a second portion of the capacitive element; wherein the first conductive region, the first via, the second conductive region, the second via, the capacitive element, and the third via form a loop; a first coupling point, electrically coupled to the first conductive region of the resonator; and a second coupling point, electrically coupled to the second conductive region of the resonator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A time delay filter comprising:
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a substrate comprising a first surface and a second surface opposite the first surface;
wherein the first surface comprises a first conductive region;a first LC resonator coupled to the substrate and comprising; a first coupling point, a first capacitive element electrically coupled between the first coupling point and the first conductive region, and a first inductive element electrically coupled between the first coupling point and the first conductive region, and comprising; a first and second inductor tap; a second conductive region coupled to the second surface, a first via that is electrically connected to and extends between the first and second conductive regions; a second via that is electrically connected to and extends between the first conductive region and a first portion of the capacitive element; wherein the first and second inductor taps are resistively coupled to the second via; and a third via that is electrically connected to and extends between the second conductive region and a second portion of the capacitive element; wherein the first conductive region, the first via, the second conductive region, the second via, the capacitive element, and the third via define a loop; a first switch that couples the first inductor tap to the first coupling point when in a first switch state and couples the second inductor tap to the first coupling point when in a second switch state; wherein the inductive element has a first inductance when the first switch is in the first switch state and a second inductance when the first switch is in the second switch state; and a second LC resonator coupled to the substrate and comprising; a second coupling point, a second capacitive element electrically coupled between the second coupling point and the first conductive region, and a second inductive element electrically coupled between the second coupling point and the first conductive region; wherein the system group delays a signal output at the second coupling point relative to a signal input at the first coupling point. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification