Compact diplexer connection circuit
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United States of America Patent
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Aug 20, 1996
Grant Date -
N/A
app pub date -
Jun 23, 1995
filing date -
Jun 23, 1995
priority date (Note) -
Expired
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Abstract
A diplexer constructed on a stripline board includes a plurality of filters each having a series of filter sections providing an elongated physical configuration to the respective filter. Each filter section comprises an inductor and a capacitor. Each of the capacitors for each of the filters is formed in stripline format by laminating a pad of electrically conductive material to a sheet of electrically conductive material with the interposition of a layer of dielectric material between the pad and the sheet. Each inductor is formed as a coil wound about a core of air or solid magnetizable material. To provide for reduced physical size of the circuitry, thereby to accommodate emplacement of the circuitry within a television cable connection box, there is provided in a preferred embodiment of the invention filters of higher and lower frequency channels wherein the filter of the lower frequency channel has larger inductors. The lower frequency channel is bent to reduce overall size, the bending bringing distant inductors in close proximity. To reduce mutual coupling between the distant inductors, the inductors are arranged with mutually perpendicular orientations of their respective axes. Power combiners, power splitters, and relays are also included in the circuitry for provision of both incoming and outgoing telephony and television video signals.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- MICROPHASE CORPORATION
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Spielman, Mark A | South Norwalk, CT | 1 | 140 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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