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RF/Microwave??

Paratek antenna supports GSM, GPRS, EDGE

Posted: 25 Feb 2002 ?? ?Print Version ?Bookmark and Share

Keywords:paratek microwave? basestation antenna? cellular network antenna? gsm/gprs? edge antenna?

Claimed to be the first antenna to support GSM, GPRS and EDGE networks, the Dynamically Reconfigurable Wireless Network (DRWiN) antenna uses analog phase shifters to produce multiple simultaneous beams that are independently steerable in each time slot.

"Instead of pursuing the traditional approach of digital beam forming, Paratek has developed the DRWiN antenna which forms beams in the RF domain. Furthermore, the beam controller of the DRWiN GSM antenna also reduces integration risk to the network operators," explains Ali Pourtaheri, Paratek president and CEO.

Unveiled at the 3GSM World Congress, the antenna delivers >21dBi of receive gain and >18dBi of transmit gain. It supports up to 24 independently steerable narrow beams with selectable beamwidth.

The antenna is also claimed to provide 50 percent greater coverage for Greenfield installations, increase CIR by 10dB, as well as improve frequency reuse from nine to four, effectively doubling the capacity.

The DRWiN antenna consists of a receive (Rx) antenna panel, multiple transmit (Tx) antenna panels, and a multi-beam controller (MBC). This design supports up to 12 carriers with dual polarization, providing polarization diversity.

The Tx antenna consists of multiple antenna panels (up to six per sector) with each panel capable of providing two orthogonally-polarized, electronically-scanning beams, and a single, fixed-sector beam. The two scanning beams are designed to support two independent carriers, and the single sector beam provides full sector coverage for the GSM control channel.

The MBC controls the beam directions of the Rx and Tx antennas as well as the Rx beamwidths through an interface with the basestation. Information such as framing and frequency-hopping schedules are provided to the MBC to compute the angle to point the beams at the appropriate customer.





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