RFEL
provide individual IP Cores and System-Level
Cores for Xilinx and Altera FPGAs, intended for use in high performance
radio systems, and other signal processing based designs. The company
also provides products and complementary System
Design and Consultancy services for a range of different markets.
These services encompass digital hardware design, RF system design,
and PC application software.
For a general overview of RFEL's services and products, please refer to the Capability Brochure.
For access
to detailed information on the individual cores, including datasheets,
white papers and short form, then please refer to the list below.

IP Cores : 

RFEL provide "off the shelf" IP cores
for Xilinx and Altera FPGA devices that are highly optimised in
terms of speed, power and size. For access to detailed information
on the individual cores, including datasheets, white papers and
short form, then please refer to the list below.
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FFT Cores More
Info |
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Xilinx
FFT Library More Info |
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A collection
of over sixty FFT cores from the HiSpeed and QuadSpeed range
on a single CD. Targetted at Spartan III, Virtex II, Virtex
II Pro, and Virtex IV FPGA devices.
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HiSpeed
( Vectis Range ) More
Info |
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Low-cost
off-the-shelf FFT cores for Xilinx and Altera FPGA, with very
small silicon usage. Sample rates up to 100MSps complex, and
lengths up to 128k complex points.
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QuadSpeed
( Vectis Range ) More
Info |
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Low-cost
off-the-shelf FFT cores for Xilinx and Altera FPGA, with sample
rates up to 400MSps complex, and lengths up to 128k complex
points.
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HyperSpeed
( Vectis Range ) More
Info |
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FFT cores
that support complex sample rates up to 6.4GSps complex, and
lengths up to 32k complex points
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HyperLength
( Vectis Range ) More
Info |
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FFT core
that support transform lengths of up to 256M complex points,
and speeds up to 200MSps
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Mixed Radix DFT's ( Matrix Range ) More
Info |
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FFT building
blocks for building non-power-of-two length DFTs.
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Channeliser Cores (Downconverters) More
Info |
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ChannelCore64
More Info |
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64
fully-flexible downconverters in a single FPGA core. Two ADC
inputs up to 140MS/s each, high resolution channel tuning, channel
filtering, and fractional resampler.
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Polyphase
DFT ( Ventrix Range ) More
Info |
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High
quality filter bank for uniformly distributed channel spacing.
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PFT
Pipelined Frequency Transform More
Info |
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High quality
multi-resolution channel bank, with flexible channel parameters.
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Tuneable
PFT More Info |
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Fully
flexible channel bank core, supporting independently tuneable
channels.
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Rate Conversion Cores More
Info |
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Flexible
Resampler |
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Efficient
fractional resampling of many channels simultaneously. |
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Fixed
Rate Converter |
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Single
channel fractional resampler for for complex sample rates up
to 200MHz.
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FFT Ancillary Cores |
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Window
Functions More Info |
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Fixed
and programmable window functions for use with FFT.
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Bit
Reversers More Info |
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Efficient
data reordering function for use with FFT.
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Power
Block Accumulator More Info |
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Convert
FFT output to power, and accumulate.
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Filters |
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Distributed
Half Band Filters More Info
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Highly
optimised half band, third band, and Nth band filters, for simultaneously
filtering, down-converting and decimating a real input signal.
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FIR
Filters More Info |
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Highly
optimised FIR filters.
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Data Format Conversion and Buffering |
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CORDIC
More Info |
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Conversion
of complex I/Q values to phase and/or magnitude representation.
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Fixed-Floating
Converter More Info
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Convert
fixed-point data values to single precision floating point format.
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Interleavers / Deinterleavers More
Info |
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Used to
multiplex multiple channels though high speed cores.
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Input Buffer More Info
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Reorders
and resamples data for parallel FFT inputs.
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Miscellaneous signal processing functions |
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Numerically
Controlled Oscillator More Info
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Quadrature
sinusoid signal generator for signals up to 100MHz.
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System Cores : 

RFEL's System Cores provide rapid FPGA solutions
for applications such as multi-channel channelisation, spectrum analysis,
and spectrometers. The cores are targeted at Xilinx and Altera FPGA
and can be customised to suit individual requirements.
Multi-Channel Downconverters
( Channelisers ) More
Info |
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Fixed
Downconverters More Info |
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Efficient
solutions for converting a wide band input into a large number
of regularly spaced channels.
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Flexible
Downconverters More Info |
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Highly
flexible channelisation solutions that allow each channel's
centre frequency, filter shape, and sample rate to be set independently.
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Wideband
Downconverters More Info |
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High performance
DDC cores that support very wideband channelisation from input
bandwidths of GHz.
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SpectraChip More
Info |
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SpectraChip
IF More Info |
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SpectraChip
IF is a digital replacement for the analogue intermediate frequency
(IF) filtering used in spectrum analysers
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SpectraChip
MHz |
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Complete
real-time spectral analysis cores for spectrum analysers with
bandwidths up to 80MHz
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SpectraChip
GHz |
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A complete
spectrometer system for the Acqiris AC210/AC240 hardware system,
capable of supporting a 1GHz sample rate and producing a 16K-point
FFT in continuous real-time
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System Design and Consultancy: 

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Consultancy More Info |
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RF
Engines provides consultancy at the system and detailed implementation
level to establish optimal configuration of the down conversion
and filtering requirements in the digital domain. Choice of
Intermediate Frequency (IF) selection, analogue to digital conversion
(A/D) selection and type of process used to perform the signal
conditioning, splitting and filtering are complicated issues.
Our engineers have extensive experience gained at system level,
which enable this complex analysis to be provided.
Optimal FPGA selection and design is also a highly complicated
area. Our engineers have years of experience in providing the
most compact and efficient designs using the latest design tools
available. Support can be provided on device selection and implementation
issues.
Should
you need to discuss your requirements with us, then please
contact us on the Contacts page
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Digital Hardware |
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Virtex
II Development Board More Info
Whilst there are many Virtex II board designs in the market
place, the RFEL Virtex II development board has primarily been
designed for flexibility and very high memory bandwidth. This
allows the development of very complex, high speed, 'memory
intensive' cores such as those developed in the RFEL core architecture
range.
Allowing a choice of Virtex II devices (from XC2V3000 to XC2V10000),
and a choice of QDR II RAM sizes and types means that the board
can be tailor-built to meet a specific application and budget
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Application Software |
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RF
Engines has software development engineers able to produce graphical
user interfaces, device drivers, and other PC application software
to support FPGA systems. The company has experience of developing
very high performance applications that maximise the data throughput
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RF Design |
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As
part of a complete system solution offering, RF Engines undertake
radio frequency design services, including detailed systems
analysis, modelling, circuit design and prototyping.
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System Design Solutions |
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Military
Signal Processing Systems More
Info
( Radar/Surveillence/EW/Comms) |
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Channelisation,
spectral analysis, and other high performance signal processing
solutions for RADAR, ELINT, SIGINT, Software Defined Radio (SDR)and
DF systems. Wide band frequency hopping and sweeping signal
detection / measurement.
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Test
Equipment Systems More Info |
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High quality
and flexible real-time spectrum analysis. Analogue IF strip
replacement. Specialist communication signal testing, Bluetooth
802.11x, UWB, etc. Low cost Spectrum Analyser on a Chip solutions
(SpectraChip).
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Communications Front End Systems More
Info |
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High quality
communications multi-channel filtering front ends. Graychip
/ Intersil replacement on FPGA. Wireless communications base
station and satellite communications front ends. Flexible user
controlled high quality filter banks.
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SpectraView 900 (SV900) More
Info |
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A complete
and cost-effective solution for performing real-time spectral
analysis of very wideband analog signals.
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