Resources Contact Us Home
Low noise figure radiofrequency device

Image Number 7 for United States Patent #7738853.

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.

  Recently Added Patents
Surface modification
Detachably integrated battery charger for mobile cell phones and like devices
Image forming apparatus capable of timely starting different image formation mode
Camera with monitor
Boundary acoustic wave device
Stable nanoemulsions for ultrasound-mediated drug delivery and imaging
Apparatus and method for weighing an item of mail during transport through a sorting installation and having an anti-vibration device
  Randomly Featured Patents
Data selecting memory device and selected data transfer device
Vacuum cup actuator
Powder feed apparatus and process for the application of a thermoplastic resin onto a fastener
Confectionery product
Method and apparatus related to simulating train responses to actual train operating data
Control circuit for at least one clock electrode of an integrated circuit
Method and data processing system with data replication
Testing framework for control devices
Unitized, vision-controlled, wireless eyeglasses transceiver
Conductive elastomeric contact system with anti-overstress columns