The first fully Brazilian antenna for applications in public safety - in the range of 4.9 GHz - was developed by CPqD, Campinas (SP).
The new 4.9 GHz antenna is the first concrete result of the project for Radio Frequency Wireless Broadband Networks Applied to Public Safety, which is being developed at CPqD with support from the National Fund for Technological Development of Telecommunications (Funttel) of the Ministry of Communications.
Its development took advantage of the technological knowledge accumulated by the contributing authors in a previous project in the area of WiMAX systems (IEEE 802.16-2005), and included their suitability for applications in public safety - police, fire, civil defense, among others.
The antenna will maintain a connection from a terminal - base station - allowing access to broadband Internet directly from these units.
This will give access to maps for locating and tracking, enabling the exchange of images and access to police databases, for example.
The use of the frequency band of 4.9 GHz for this application is a recent recommendation of the International Telecommunication Union (ITU) for the whole world.
The new antenna is suitable for radio applications with MIMO (multiple-input and multiple-output), with great potential for adoption in the fourth generation mobile networks (4G).
MIMO radios use multiple antennas in both transmitter and receiver in order to improve the quality and performance of communication.
Even though it was designed to operate in the range of 4.9 GHz, the new antenna can be adapted for other frequency bands, and may even become an option for the National Broadband.
The technology has been licensed and the first units will be placed on the market for TSM Antennas, Santa Maria (RS).