Multi-resonator ferrite microstrip coupling filter
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United States of America Patent
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-
May 13, 2003
Grant Date -
Dec 26, 2002
app pub date -
Jun 21, 2001
filing date -
Jun 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A micro-resonator ferrite microstrip coupling filter that has reduced susceptibility to variations in the manufacturing process, as well as from changes due to mechanical or environmental stress, and allows for an assembly process that can be easily automated. The filter comprises bottom and top substrates with conductive ground planes on one side of the substrates and microstrip conductors on the other side of the substrates, with the conductors of both substrates being orthogonal to each other. A circuit block is disposed between the bottom and top substrates such that the circuit block contacts the sides of the substrates containing microstrip conductors. Multiple YIG spheres are inserted into round orifices on the circuit block and positioned between the bottom and top substrates. A magnetic field is applied orthogonally to the conductors.
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