Infineon has in development a complete family of packaged RF Transceiver for Mobile Backhaul – beside BGT70 and BGT80 for E-band radio, also BGT60 for V-band radio. The Family approach has the major benefit due to it´s a modular approach – one architecture supporting the three backhaul frequency ranges of 60, 70 and 80 GHz. Customers can easily design all three radio versions with the same RF footprint as the package is same for all three Transceiver.
Mobile communication and especially LTE (4G) is getting momentum these days due to the fact that all big carriers and mobile phone manufactures invest into the 4th generation ecosystem. The challenge which the ecosystem will face is that LTE will further enhance the video and data exchange to a maximum, everybody can send his latest holiday pictures and video to his friends. The bulk of today’s basestation infrastructure is not ready to support the required high data throughput.
The connection between the basestation was so far planned for lower data rates (few 100MBit/s) and needs now increased capacity. This is where the wireless backhaul technology comes into place. A solution using wireless backhaul in in the E-band (71-76 and 81-86GHz) will open up 10GHz frequency range and in the V-band (57–64GHz) will open up 7GHz frequency range to do so. This enables datarates > 1Gbit/s for video and data service, sufficient for LTE.
Infineon business approach will enable such Gbit service with the latest 60 and 80GHz technology.
Due to Infineon´s advanced SiGe (Silicon Germanium) technology with a transit frequency of 200GHz, we can integrate all RF (Radio Frequency) building blocks, like Power Amplifier (PA), Low Noise Amplifier(LNA), Mixer, Programable Gain Amplifier (PGA), Voltage Controlled Oscillator(VCO), into a single chip.
These technology is proven and fully qualified for other Infineon Millimeter- and MicroWave chipsets already (e.g. 77GHz automotive radar).
Furthermore Infineon will house this single chip into a plastic package which makes a major difference to the market. So far solutions are bare die and require expensive tools and equipment to build up a radio system. With the Infineon packaged chipset, customer can save money and reduce the time-to-market significantly.
Backhaul Network Example
Characteristics of different Base Station Sizes
|Range||10 - 200m||200m - 2km||1 - 30km|
|No. of users||8 - 32||64+||200+|
|Typical application||SMB, enterprise, public indoor areas||Metro outdoors, city centers, capacity hotspots||Outdoor coverage|
|Deployment scenario||Enterprise or operator deployed||Operator deployed||Operator deployed|
Packaged solution, easy to use and standard SMT flow for mounting on customer system
Low power RF Transceiver (<2Watt peak power)
Highly integrated RF transceiver requiring no external RF discretes, thereby simplifying the customer design and time-to-market
Architecture of Direct Conversion Zero IF eases interface to latest modem/BB designs (no external filter)
A transceiver approach with implemented BIST (Built-In Self-Test) on the chip to enable RF testing at Infineon production
Family concept (common architecture, package, pinning) simplifies customer designs due to modular approach
Transceiver Chip Solution
BGT60 for ISM band (license free), 57–64GHz
BGT80 for the High Band, 81–86GHz
BGT70 for the Low Band, 71–76GHz
BGT60 has identical pinning and same footprint as BGT70 or BGT80
Channel, Tx or Rx, selection via SPI
Samples and Evaluation Board:
Available September 2013