Multi-channel waveguide structure
First Claim
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1. A multi-channel transmission line comprising:
- a planar dielectric substrate having an upper surface and a lower surface and a thickness T;
a first slot transmission line formed in the upper surface of said planar dielectric substrate; and
, a second slot transmission line formed in the upper surface of said planar dielectric substrate, said second slot transmission line being laterally displaced from and substantially parallel to said first slot transmission line.
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Abstract
Slot transmission lines are formed in dielectric substrates. Several of such substrates can be stacked together. When stacked together, the conductive surfaces that form the transmission lines can be terminated in the same plane whereat the conductive surfaces form contact terminals. The co-planar contact terminals can be coupled to contact points on a circuit board. Signals on the circuit board can thereby be coupled into the slot transmission lines that extend through the dielectric substrates.
50 Citations
14 Claims
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1. A multi-channel transmission line comprising:
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a planar dielectric substrate having an upper surface and a lower surface and a thickness T;
a first slot transmission line formed in the upper surface of said planar dielectric substrate; and
,a second slot transmission line formed in the upper surface of said planar dielectric substrate, said second slot transmission line being laterally displaced from and substantially parallel to said first slot transmission line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A transmission line structure comprised of:
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a first multi-channel transmission line including a planar dielectric substrate having an upper surface and a lower surface and a thickness T;
a first slot transmission line, said first slot transmission line being formed from a slot through the upper surface of said planar dielectric substrate and having a width W1 and depth D1;
a second slot transmission line, said second slot transmission line being formed from a slot through said planar dielectric substrate and having a width W2 and a depth D2;
a first slot in the lower surface of said dielectric substrate, said first slot in the lower surface having a depth less than T-D1, and being located below the first slot transmission line; and
,a second slot in the lower surface of said dielectric substrate, said second slot in the lower surface being parallel to the first slot in the lower surface and also having a depth less than T-D2, and being located below located opposite the second slot transmission line;
an electrically conductive layer substantially covering the lower surface of the planar dielectric substrate and substantially covering the first and second slots in the lower surface; and
,a second multi-channel transmission line having a planar dielectric substrate, the upper surface of which is coupled to the lower surface of said first multi-channel transmission line. - View Dependent Claims (11, 12, 13)
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14. A stacked transmission line structure comprised of:
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a first waveguide module having upper and lower planar surfaces and a first planar termination end, said first waveguide module comprised of first and second slot transmission lines formed in the upper planar surface of the first waveguide module, said first and second slot transmission lines having differential signal conductors that terminate in said first planar termination end; and
,a second waveguide module having upper and lower planar surfaces and a second planar termination end, said second waveguide module comprised of first and second slot transmission lines formed in the upper planar surface of the second waveguide module and being coupled to said first waveguide module, said first and second slot transmission lines of the second waveguide module having differential signal conductors that terminate in said second planar termination end, said first and second planar termination ends being co-planar.
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Specification