Transmitter IC Covers 3G/4G

June 10, 2010

The model RFX8000 multi-mode/multi-band transmitter integrated circuit (IC) from fabless semiconductor supplier RFaxis is a single-chip solution designed to deliver longer operating time on third-generation (3G) and fourth-generation (4G) cellular handsets. Based on 0.18-micron CMOS, the IC contains linear WCDMA/EDGE power amplifiers, switching functionality to support multiple modes/bands, and on-chip matching circuitry. As Mike Neshat, President and CEO of RFaxis explains, "our RFX8000 transmitter IC chip addresses the most critical challenge impacting the performance of 3G and 4G multi-mode/multi-band cell phones: transmit power efficiency and performance. In fact, the RFX8000 can enable a dramatic 200 percent to 400 percent improvement in the average (operational) power efficiency for such cell phones."

About the Author

Jack Browne

Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.