Low noise figure radiofrequency device

Details Low noise figure radiofrequency device Low noise figure radiofrequency device

2007-04-30

2010-06-15

Dao, Minh D (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S127300, C455S194200, C455S153200, C455S311000, C330S303000, C333S134000, C375S272000

Reexamination Certificate

active

07738853

ABSTRACT:
A 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 holding multiple coaxial resonators. The housing further includes multiple receive paths including at least one path having a plurality of cavities, each cavity containing a dielectric resonator. The metallic transmit resonator nearest the antenna input is coupled to the first dielectric resonator via a common resonant wire. The last dielectric resonator in the receive path is coupled to a first metallic resonator of a downstream clean-up filter via another common resonant wire.

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