Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2011-06-07
2011-06-07
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S134000, C333S235000
Reexamination Certificate
active
07956706
ABSTRACT:
A multiband filtering apparatus (40) for use in a communications system, said apparatus including a housing (21); a plurality of cavities (22.1, 22.2) disposed within said housing wherein each cavity includes a resonant structure, the resonant structure having at least one ceramic element (23.1, 23.2); at least one input port (27) coupled to a first resonator of said plurality of resonators; at least one output port (28) coupled to a second resonator of said plurality of resonators; and a closure member (25) adapted to engage said housing (21) and cap said cavities.
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AbuShaaban Mostafa Mohamed Taher
Blair Christine
Filtronic PLC
Howard & Howard Attorneys PLLC
Lee Benny
LandOfFree
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