Resources Contact Us Home
Fully integrated ultra wideband transmitter circuits and systems

Image Number 4 for United States Patent #7979036.

Disclosed is a novel design of a fully integrated UWB transmitter. The transmitter includes a pulse generator, a pulse modulator, and an ultra-wideband drive amplifier. A new low voltage low power pulse generator circuit is disclosed which can be fully integrated in CMOS or BiCMOS process. This circuit includes a squaring stage, an exponential stage, and a second-order derivative stage. Based on this, PPM, BPSK and PAM pulse modulator circuits and system are disclosed. The modulated pulse is symmetrical second-order derivative Gaussian pulses with a bandwidth up to 5 GHz and having sufficient swing for UWB applications. An ultra-wideband driver amplifier is proposed to amplify the modulator output and drive the antenna. For the driver amplifier, common source resistor and inductor shunt feedback with current reuse technique is employed to achieve the ultra-wideband bandwidth, high gain, and providing matching for the antenna simultaneously.

  Recently Added Patents
Server-side web analytics system and method
Method for production of fermentable sugars from biomass
System and method for discontinuous reception control start time
Method, apparatus and computer program product for visualizing whole streets based on imagery generated from panoramic street views
Systems and methods for computer-aided fold detection
Biometric data display system and method
5-HT.sub.3 receptor modulators, methods of making, and use thereof
  Randomly Featured Patents
Automatic transmission
Fluid purification system
Method of forming a non-fractionated, room temperature pourable butter
Baitcast fishing reel
Vehicle controller, control method, and computer program
Method and apparatus for handoff of a wireless packet data services connection
Ultrasonic diagnostic apparatus and ultrasonic imaging method and program
Standard reflective device
Paste composition, and a green sheet, for forming a dielectric layer, and a method for forming a dielectric layer of plasma display panel
Sediment and detention basin drainage system and method