Presentation 70,71
Presentation 70
Power Amplifier Efficiency Enhancement and Hige Power CMOS T/R Switch Technologies
Dr.Solon Spiegel
RIO SYSTEMS LTD
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Multi-protocol radio transceivers having high degree of scalability require the implementation of digitally rich transceiver architectures, in combination with innovative RF techniques. These techniques, when encompassed into digital transceiver architectures, provide factory level scalability while optimizing the BoM, PCB area and the power consumption of the overall system.
This work addresses two enabling technologies for multi-protocol radio transceivers: the power efficiency enhancement scheme applied to the 3G systems and the cellular/Wifi/WiMax CMOS T/R switch matrix. It has been demonstrated that by applying dynamic bias adaptation and linearization techniques to 3G power amplifiers, the average battery current consumption decreases more than 70mA in comparison with a class-A amplifier.
In addition, a high linearity CMOS T/R switch matrix for the converged cellular/Wifi/WiMAX platfoLⅢ with 1dB compression above +37dBm is presented. The CMOS T/R switch achieves 2nd and 3rd order harmonic distortion higher than 70dB and 80dB respectively at +35dBm output power in the transmitter channel. The preliminary specification of the CMOS T/R switch matrix is outlined.
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Presentation 71
Nano-Technology Storage Solutions
Marion Meir
CEO.MATTERIS
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MATTERIS is developing a totally new concept of nano-materials dedicated to removable, high capacity data storage (media and a recording/reading driver) for archive, backup and consumer multimedia markets. Enterprises' storage problem: Today, enterprises suffer from the limitations of the archive and backup media. Consumer' storage problem: In addition to the increasing internet stream of pictures and video, new broadcast formats, such as High Definition TV, are driving the demand for higher capacity DVD-like media.
Matteris' solution: Matteris developed the concept of a new optical medium based on the development of a new nano-material whose main characteristic is to alter its index of refraction under laser illumination. AS compared to the regular layers of existing optical discs which are completely burned by the laser, the new material slightly changes its transparency during recording, thus allowing the laser to penetrate up to one hundred layers.
Coated by a thin film of only few hundred of microns of our nano-material, a 5.25 inch disc will reach a capacity of up to 2.5 Terabytes (with a capacity between 4.7 to 25 Giga Bytes per layer, depending on the DVD format of the layer). NOTE: AS of today, the only DVD-R systems (recordable discs) are the BluRay DVD's with a maximum capacity of 25 GByte per disc as compared to our proposed solution of up to 2,500 GByte per disc.
Since the material is ready for production and, other than the optical head, the new driver is very similar to a DVD driver, we estimate that the delivery time for a complete beta-site storage system,disc and driver, will be only 18 months.
