20090930 - 20110329
Mr Corbett Ray Rowell
1. Hardware Platform: Digital IF FPGA Board: Two FPGAs together with Analog and digital convertors. The initial FPGA board with sample up/down to/from 140MHz IF. The FPGA will implement DDC, DUC, CFG, DPD, and AGC with DIF interface connectors. RF Transceiver Board: Using third-party components, the RF transceiver will convert the IF to RF and visa versa. RF Functional assemblies: Variable Phase Shifter: A variable phase shifter that can control the beam-tilt in a base station antenna by +/- 10 degrees. RF Multiplexer: A RF assembly that has one RF input and 4 RF outputs with control interface for ISM2400 networks. Automatic Tuning Circuit: A reconfigurable tuning circuit that can tune the antenna resonance by +/- 5%. RF Jammer: A RF assembly that can jam signals in the ISM2400 band and still follow OFTA specifications. 2. Technical Design Documents for each hardware module Simulations Variable Phase Shifter: Simulations using Electromagnetic simulators 4. USA Patent applications: At least 4 patents in the following areas: Variable phase shifting RF switching circuits Automatic tuning and reconfigurable circuits Base station antenna assemblies FPGA architecture
Altera International Limited [Sponsor] Analog Devices [Sponsor]
This project focuses on developing a new platform technology for enabling advanced RF and antenna technology. The target application platform is broadcast and communications technology. The project will focus on two areas: additional and advanced RF functionality and a hardware platform for enabling that technology. The additional RF functionality builds on prior experience and IP in active antennas, beam-forming, and isolation in order to create advanced RF technologies: active phased antenna arrays, automatic matching circuits, RF jamming, and RF multiplexers. In order to enable both prior and future advanced antenna/RF functions, the project will develop a FPGA platform for antenna and RF control. The FPGA platform can also be used as a repeater or a remote radio unit for both legacy wireless networks and future wireless networks. The platform technologies developed will have immediate application within the communications industry, both in small niche markets and the larger infrastructure markets. The new platform technology will enable the Antenna and RF group to work together both with industry and cross-domain within the CT group and ASTRI.