In many cases Deltenna's standard products are exactly what our
customers are looking for, but at other times a customer may need
something slightly different, or even a completely custom product
that utilizes our deep understanding and experience of radio and
antenna design. In these cases, our services and support
organization is there to help.
Just as one size rarely fits all, there are different ways we
can work together to support your specific objectives:
- Product development
Deltenna may develop or modify a product to meet your requirements
and then make it generally available.
- Fixed price
Deltenna work with you to scope a program and agree deliverables
and then agree a fixed price for the development.
- Cost plus
Resources committed to a program and charged at a standard
rate.
The process typically starts by capturing your requirements
before completing a full proposal. Once agreed, we submit a formal
bid and when this is accepted we are ready to begin work. Our goal
is to let your engineers get on with their work, while we work on
the next generation technology to help them.
Specializations
Radio system
design
Antenna
integration
Antenna performance
analysis
Examples
RF
front-end module for a 3G picocell base station
5.8GHz switched beam
antenna
Remote sensor for
wireless telemetry on boats
Specializations
Radio System Design
Our expertise in RF and baseband design means that entire radio
solutions from the modem to the antenna can be developed. When
combined with a strong systems knowledge and deep understanding of
the standards and frequency bands, it can be done quickly and cost
effectively.
We rely on integrated tools to help us to go smoothly from
initial concepts through simulation and analysis to full
implementation. These include schematic entry, simulation of linear
and non-linear circuits, electromagnetic analysis and printed
circuit board layout.
Specializations
- GSM/EDGE, WCDMA and EV-DO
- WiFi (IEEE 802.11) and WiMAX (IEEE 802.16)
- 400MHz to 6GHz
- Small-signal RF up to 20W average UMTS power
- Compact single-sided boards
- Drop-in design cells with verified performance designed with
the customer's tools and delivered as a schematic and layout
- CPRI and OBSAI standard interfaces
- Antenna arrays (beamforming, MIMO)
- Distributed filtering to meet
stringent RF specifications
Examples
- Integrated penta-band tri-standard radio
- RF front-end module for a 3G picocell base station
- Femtocell architecture development
Antenna Integration
All too often antennas are treated as passive components that
are separate to the main radio. At Deltenna, we have the detailed
RF systems and antenna expertise to fully integrate the antenna
into the design. The end result is usually simpler, smaller and
less expensive.
Our tools enable full 3D electromagnetic modeling of high
frequency designs.
Specializations
- Dielectric Resonator antennas
- Aperture coupled patches
- Remote radio units
Examples
- Switched beam antenna for a mesh network
- Remote sensor for wireless telemetry on boats
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Antenna Performance Analysis
Whatever testing is done in the lab, the ultimate performance of
an integrated radio and antenna depends on its surroundings when
deployed. Do the signals propagate as expected and how might they
affect nearby electronic equipment?
Deltenna uses tools for the Far-field Analysis of Integrated
Structures (FAIS). The system uses powerful and accurate 64-bit
numerical analysis running on large multi-processor computers.
These enable the 3D electromagnetic modeling of structures at high
frequencies from airplanes to mobile handsets. Advanced
cell-reduction techniques enable radiating structures to be easily
optimized and integrated.
Benefits
- Far-field patterns and EM exposure can be accurately
modeled
- Antenna de-tuning can be precisely simulated and corrections
made
- Propagation tools and models can be modified using data
generated from a virtual environment
Applications
- Complete car with mobile phone and GPS antenna in different
locations for optimum placement
- Femtocell home base station in a virtual house to determine the
impact on the existing mobile network
- WiFi hotspots to determine the benefits of advanced antenna
techniques such as MIMO
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Examples
RF
front-end module for a 3G picocell base station
|
Objectives
|
To meet all of the 3GPP Release 6 RF specifications with margin,
delivering an average output power of 350mW (peak-to-average ratio
of 8dB) on a single module.
|
|
Challenge
|
Meeting the tough blocking requirements with a module that must
not exceed 30.5mm by 25mm by 6.85mm.
|
|
Results
|
Deltenna designed and debugged the complete module, also
providing the test specification, datasheet and application note.
We specified ceramic filters for use in distributed filter
architecture to meet size, cost and performance requirements.
|
|
Client
|
The module was developed in partnership with CTS Corporation,
a leading manufacturer of RF components and modules.
|
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5.8 GHz Switched beam antenna for a Mesh
network
|
Objectives
|
To design and develop a 360° 16-beam antenna for operation at
5.8GHz in a Mesh network field trial. The signals must be
assignable to any beam.
|
|
Challenge
|
The design needed to be simple, low-cost and compact.
|
|
Results
|
A cube design was developed, with a 4×2 array of low-cost
dielectric resonator antenna elements on each of four faces. The
internal circuitry included a Butler Matrix to switch between beams
and used no connectors to the antenna elements, ensuring low-cost
and minimal signal loss. Over 100 of the antennas were deployed in
a successful field trial during 2003.
|
|
Client
|
Radiant Networks, a UK-based company developing wireless Mesh
networks for last-mile applications.
|
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Remote sensor for wireless telemetry on boats
|
Objectives
|
To design and develop a wireless telemetry module for recording
and transmitting wind speed on a yacht. This included an integrated
antenna and wireless data modem for use in the ISM band.
|
|
Challenge
|
Meeting the tight mechanical constraints and integrating a
cross-polar antenna to mitigate multipath effects.
|
|
Results
|
The sensor module is deployed on yachts around the world.
|
|
Client
|
Tacktick
is a UK-based company that develops innovative solar powered
wireless instruments for the marine market.
|
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