Miniaturized multi-section directional coupler using multi-layer MMIC process
First Claim
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1. A miniaturized directional coupler comprising:
- at least one tightly coupled broadside coupled stacked spiral,wherein said miniaturized directional coupler forms a center section of a multi-section coupler, said multi-section coupler includes coupler sections adjacent to either side of said center section, and said adjacent sections include edge coupled lines, and wherein said multi-section coupler has a bandwidth exceeding 3;
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Abstract
A miniaturized multi-sectioned, directional coupler using a multi-layer MMIC process, the coupler comprising, a monolithic microwave integrated circuit, having a central section with a relatively tight coupling, surrounded by sections of lighter coupling, the relatively tight coupling being comprised of a pair of spiral coupled lines, and the lighter coupling being comprised of meandered edge couple lines with capacitive loading of the lines in several places.
11 Citations
24 Claims
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1. A miniaturized directional coupler comprising:
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at least one tightly coupled broadside coupled stacked spiral, wherein said miniaturized directional coupler forms a center section of a multi-section coupler, said multi-section coupler includes coupler sections adjacent to either side of said center section, and said adjacent sections include edge coupled lines, and wherein said multi-section coupler has a bandwidth exceeding 3;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A miniaturized, multi-sectioned, directional coupler using a multi-layer monolithic microwave integrated circuit (MMIC) process, the coupler comprising:
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a monolithic microwave integrated circuit, having a central section with a tight coupling surrounded by sections of lighter coupling, the tight coupling being comprised of at least one broadside coupled spiral line and the lighter coupling being comprised of edge coupled lines, wherein said miniaturized, multi-sectioned, directional coupler has a bandwidth exceeding 3;
1. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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- 23. A method for improving the bandwidth of a multi-section directional coupler having a center section, the method comprising the step of providing the center section with a pair of broadside coupled stacked spirals, wherein the broadside coupled stacked spirals are tightly coupled and wherein the multi-section directional coupler has a bandwidth exceeding 3:
Specification