Resources Contact Us Home
Radio frequency transceiver front end circuit with parallel resonant circuit

Image Number 13 for United States Patent #8135355.

A front end circuit for coupling an antenna to a radio frequency (RF) transceiver for time domain duplex systems is disclosed. The front end circuit includes an antenna port, a power amplifier, a low noise amplifier, and a matching network. The output of the power amplifier and the input of the low noise amplifier are coupled to the matching network and connected in common to the antenna. The power amplifier and the low noise amplifier are activated and deactivated in sequence corresponding to the transmit and receive modes of the transceiver, and the matching network minimizes the effect that one has on the other at the designated operating frequency.

  Recently Added Patents
Bicyclic azaheterocyclic carboxamides
Integrated transmit/receive switch
Contactless electrical connector for an induction sensor, and sensor including such a connector
Probiotic enriched and low organic acid food products
Mobile communication apparatus
Circuitry testing module and circuitry testing device
Semiconductor device and method of manufacturing the same
  Randomly Featured Patents
Electronic portable appliance
Reversible cooking appliance
Phosphorescent OLED
Method and system for developing optimized schedules
Adjustable bandwidth filter for process variable transmitter
Tire with circumferential grooves in the bead region
Compounds and methods for treating mitochondria-associated diseases
Castellation wafer level packaging of integrated circuit chips
Transfer ring for a tire building machine
Load balancing multiple among multiple carriers in a sector