Reinventing the Transmit Chain for Next-Generation Multimode Wireless Devices
Upcoming generations of radio access standards are placing high demands on the RF transmit chain, requiring significant improvements in size, integration, and functionality while improving power efficiency for multimode wireless devices. To date, trends in RF integration have been to add redundant circuits to accommodate new standards, packing more complexity into the circuit, and then shrinking it. However, this approach often requires a necessary compromise in performance and yield, with physical limits in terms of overall size reductions. A new approach is needed that incorporates a streamlined architecture to accommodate the additional levels of complexity due to multimode functionality, while improving efficiency, yield, and size, and meeting regulatory compliance.
Microwave Journal Article 04/06/2009 - By: Richard Harlan
The information, software, documentation, data, services, logos, trademarks, artwork, text, video, audio, pictures and other materials (collectively, "Materials") contained on the ParkerVision Web site are owned by ParkerVision, Inc. and/or its suppliers and are protected by copyright and trademark laws and international treaties. Any such Materials may also be the subject of other intellectual property rights of ParkerVision and/or its suppliers all of which rights are reserved by ParkerVision and its suppliers. The Materials are illustrative, but not comprehensive, of ParkerVision's proprietary technologies. Accordingly, the Materials should not be used to construe the scope of ParkerVision's intellectual property rights. Nothing on the ParkerVision Web site shall be construed as conferring any license under ParkerVision's or its suppliers' intellectual property rights, whether by implication, estoppel or otherwise. Except as provided below, or as specifically permitted in other sections of the ParkerVision Web site, you may not reproduce, republish, post, transmit or distribute any Materials on the ParkerVision Web site. You may print or download Materials from the ParkerVision Web site for your own informational, educational and other non-commercial purposes only, provided that you include all copyright and proprietary notices originally included with or contained in the Materials in all copies you create. You may not attempt to "pass-off" any of the ParkerVision Materials as your own. You may not post on any other Web site, display, or distribute the Materials on the ParkerVision Web site without the express prior written consent of ParkerVision. All Materials on the ParkerVision Web site are subject to change without notice.
