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Area Contact Regine Suling Manager Marketing Communications, Radio Frequency Systems +49 511 676 3552 peter.krause@rfsworld.com
Global contact Jörg Springer Vice President Global Marketing & Communications +49 511 676 2516 peter.krause@rfsworld.com
12-Sep-2007 Print page

RFS Optimizer S-series tilts to 14 degrees

The Optimizer S-series broadband high-performance base station antennas (BSAs) from Radio Frequency Systems are now available with variable electrical tilt spanning 4-to-14 degrees. These extended-tilt BSAs have been specifically designed to meet increasing capacity needs within emerging third-generation (3G) and mature 2G wireless networks.
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Delivering excellent performance across the entire 1710-2170MHz band, the Optimizer S-Series supports all major ‘high-band’ wireless services, including GSM 1800MHz, PCS 1900MHz, UMTS 2100MHz, and AWS 1710/2100MHz, plus emerging ‘digital video broadcasting - satellite services to handheld’ (DVB-SH; 2180-2200MHz) services. The two new models--a two-port broadband unit and a four-port ‘side-by-side’ broadband unit--combine the S-Series’ highly regarded RF performance, with 4-to-14 degree tilt capability.

“The phenomenon of ‘tilt creep’ in the modern urban wireless network presents very real challenges,” said Rémi Deniel, RFS Area Product Manager Wireless Infrastructure Solutions. “In Paris, for example, the average BSA tilt is now around six degrees. With network capacity demands skyrocketing, network managers are increasingly striving for BSA tilts in excess of 10 degrees in inner urban cells.”

A conventional approach used to-date to achieve such 10-plus degree tilts has been to combine mechanical and electrical tilt. “The ‘mechanical + electrical’ tilt approach presents many problems, including increased visual impact, and the distorted azimuth beam and co-channel interference issues associated with mechanical tilt. RFS’s new S-series 4-to-14 degree tilt BSA elegantly steps around these issues,” Deniel said.

All Optimizer S-series BSAs achieve an azimuth horizontal beamwidth variation of less than seven degrees across the entire band; plus a gain difference of less than 1dB. In addition, they feature improved side-lobe suppression (typically better than 20dB across all lobes above the main), and a stable vertical beamwidth across the band.

Both Optimizer S-series 4-to-14 degree tilt models feature a 65-degree horizontal beamwidth, and are presented in a 1.4m/4.5ft-long package with a robust fiberglass radome. The units can be provided pre-fitted with RFS antenna control units (ACU) for remote antenna tilt control. These are compatible with the antenna interface standards group (AISG) version 2.0 communications protocol.

[IMAGE CAPTION]: The vertical radiation pattern of RFS's new Optimizer S-series 4-to-14 degree tilt base station antenna.

Trademarks: Optimizer®, Radio Frequency Systems® and RFS®, are all trademarks, service marks or registered trademarks of Radio Frequency Systems.

Company background
Radio Frequency Systems is a global designer and manufacturer of cable, antenna and tower systems plus active and passive RF conditioning modules, providing total-package solutions for wireless infrastructure.

RFS serves OEMs, distributors, system integrators, operators and installers in the broadcast, wireless communications, land-mobile and microwave market sectors. As an ISO compliant organization with manufacturing and customer service facilities that span the globe, RFS offers cutting-edge engineering capabilities, superior field support and innovative product design. RFS is a leader in wireless infrastructure.

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