Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2005-10-25
2008-11-25
D'Agosta, Stephen M (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S011100, C455S422100, C455S561000
Reexamination Certificate
active
07457640
ABSTRACT:
A dielectric-based RF device such as a tower mounted amplifier (TMA), mast-head amplifier (MHA), or Tower Mounted Boosters (TMB) includes a housing having a plurality of cavities and an input and an output, the input being coupled to the antenna and the output being coupled to a base station. The housing includes a transmission path with a transmit filter. The housing further includes a receive path with at least one receive filter and a low noise amplifier. The receive filter includes a plurality of cavities with a dielectric-based resonator disposed in at least some of the plurality of cavities. In one aspect, the RF device has a volume of less than about 155 in3. The RF device including the dielectric-based resonators has excellent out-of-band signal rejection with low loss. In addition, the RF device described herein is small enough to mount close to the antenna. The dielectric-based RF device has superior performance characteristics and a smaller footprint than conventional air cavity-based TMAs.
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PCT International Preliminary Report for PCT/US2005/039013, Applicant: Antone Wireless Corporation, Form PCT/IB/326, dated May 10, 2007 (9 pages).
Antone Wireless Corporation
D'Agosta Stephen M
Vista IP Law Group LLP
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