Deltenna - Rugged Antennas for the Military and Emergency Services

Deltenna designs and manufactures antennas for the military and emergency services. Specialising in the commercial frequency bands for GSM, CDMA and WCDMA, these antennas are rugged and low profile for easy mounting to vehicles, helicopters and other structures. Designed to exceed military specifications, a drop from 5m onto concrete merely chips the paint on certain models.

CIRCULAR POLARISATION – WIDE-AREA COVERAGE IN ALL ENVIRONMENTS

All the rugged antennas use circular polarisation for maximum range and coverage in all operational environments. Circular polarisation is the most effective antenna technique to minimise the effects of multi-path reflections and polarisation fades.

Benefits include:

• Uses proprietary antenna element design
• Wideband operation replacing multiple antennas
• Circular polarisation across the band to guarantee range (better than 3dB axial ratio)
• Compact and easy-to-mount, including unique through-bolt option

Applications include:

• Emergency services at an incident scene
• Ad hoc mobile networks from 800MHz to 2100MHz
• Portable base-station equipment in the field

In addition to a range of standard products, Deltenna also designs custom antennas. This includes complete radio transceivers, Power Amplifiers (PA) and Radio Frequency (RF) front ends. Active antennas with integrated radios are available from 400MHz to 4GHz.

800MHZ AND 900MHZ FLAT-PANEL RUGGED ANTENNA

• Support for GSM, CDMA and WCDMA
• Single band and multi-band variants
• 10dBi gain
• 40mm (1.6in) depth
• 50° half-power beamwidth in all orientations
• Two ports available (right-hand and left-hand circular polarisation)

1800MHZ, 1900MHZ AND 2100MHZ FLAT-PANEL RUGGED ANTENNA

• Support for GSM, CDMA and WCDMA
• Single band and multi-band variants
• 10dBi and 11dBi gain variants
• 25mm (1in) depth
• 50° half-power beamwidth in all orientations
• Two ports available (right-hand and left-hand circular polarisation)

WIDE BEAMWIDTH ANTENNA – WIDE-AREA COVERAGE FOR THE MILITARY AND EMERGENCY SERVICES

• Support for GSM, CDMA and WCDMA
• 824MHz-960MHz frequency bands
• 7.7dBi gain
• 65mm (2.6in) depth
• 70° half-power beamwidth in all orientations

FUTURE MULTI-BAND AND ACTIVE ANTENNAS

Deltenna is integrating additional functionality to further reduce equipment needs. This includes a single low-profile rugged antenna to cover all five leading commercial frequency bands: 800MHz, 900MHz, 1800MHz, 1900MHz and 2100MHz.

Deltenna also integrates the radio for compact active antenna solutions. This can include the complete transceiver or only the RF front-end. Radios are available from 400MHz to 4GHz, with modules for up to 20W average output power.

FAR-FIELD ANALYSIS OF INTEGRATED STRUCTURES (FAIS)

Deltenna uses tools for the Far-field Analysis of Integrated Structures (FAIS) to model far-field patterns and Electro-Magnetic (EM) exposure. The system uses powerful and accurate 64-bit numerical analysis running on large multi-processor computers. These enable full 3D electro-magnetic modelling of structures at high frequencies from airplanes to mobile handsets. Advanced cell-reduction techniques enable radiating structures to be easily optimised and integrated.

Benefits include the modelling of far-field patterns and the accurate simulation of any antenna de-tuning to allow corrections to be made. Propagation tools and models can also be modified using data generated from a virtual environment.