Compact band pass filter
First Claim
Patent Images
1. A compact band pass filter (BPF), comprising:
- a first transmission line electromagnetically coupled to a second transmission line; and
an isolating surface positioned between the first transmission line and the second transmission line, wherein the isolating surface includes at least one aperture designed to produce a desired electromagnetic coupling between the first transmission line and the second transmission line, wherein the coupling produces a passband such that certain frequencies within an input transmission signal are filtered out, and wherein the isolating surface further includes at least one asymmetrical aperture that is asymmetrical with respect to the first transmission line and the second transmission line.
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Abstract
A compact band pass filter (BPF), including a first transmission line electromagnetically coupled to a second transmission line; and an isolating surface positioned between the first transmission line and the second transmission line, wherein the isolating surface includes at least one aperture designed to produce a desired electromagnetic coupling between the first transmission line and the second transmission line wherein the coupling produces a passband such that certain frequencies within an input transmission signal are filtered out.
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Citations
16 Claims
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1. A compact band pass filter (BPF), comprising:
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a first transmission line electromagnetically coupled to a second transmission line; and an isolating surface positioned between the first transmission line and the second transmission line, wherein the isolating surface includes at least one aperture designed to produce a desired electromagnetic coupling between the first transmission line and the second transmission line, wherein the coupling produces a passband such that certain frequencies within an input transmission signal are filtered out, and wherein the isolating surface further includes at least one asymmetrical aperture that is asymmetrical with respect to the first transmission line and the second transmission line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A compact band pass filter (BPF), comprising:
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a first transmission line; and a second transmission line, wherein the first transmission line is electromagnetically coupled to the second transmission line, wherein the coupling produces a passband such that certain frequencies within an input transmission signal are filtered out; wherein the first transmission line and the second transmission line each further include a U-shaped portion, wherein the U-shaped portion of the first transmission line and the U-shaped portion of the second transmission line are aligned with one another and are alternating in direction. - View Dependent Claims (13, 14, 15, 16)
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Specification