High-gain, high-linearity devices provide peak power to support WiMAX apps - Embedded.com

High-gain, high-linearity devices provide peak power to support WiMAX apps

Toshiba now offers five high-gain, high-linearity, internally matched gallium arsenide (GaAs) FETs targeted for use in amplifiers and microwave digital radios for 3.5- and 5-GHz fixed wireless access (FWA) systems, including WiMAX and the Unlicensed National Information Infrastructure (U-NII) compatible systems.

Microwave-based FWA systems provide point-to-point and point-to-multi-point signal transmission through the air over a terrestrial microwave platform, rather than through copper or fiber cables. As a result, FWA systems don't require satellite feeds or local phone service and can provide a wireless broadband alternative to cable modem or DSL connections.

To address the requirements of U-NII broadcast wireless systems, three devices operate in a frequency range of 5.3 to 5.9 GHz. Toshiba's UL process provides high gain, low intermodulation distortion and high efficiency. The three UL devices are the TIM5359-4UL, which achieves high gain of 10.5 dB with typical output power of 36.5 dB relative to 1 mW (dBm); the TIM5359-8UL with 10.0 dB gain and output power of 39.5 dBm; and the TIM5359-16UL with 10.0 dB gain and 42.5 dBm output power. For additional information, visit chips.toshiba.com.

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