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Series of fully matched WiMAX and WiFi power amplifier modules

Avago Technologies has launched a series of small, fully matched WiMAX and WiFi power amplifier modules for mobile and fixed wireless data applications. The MGA-2xx03 series of PA modules are offered in a compact 3×3×1mm package. They are suitable for manufacturers of portable and mobile devices containing WiMAX or high power WiFi links. The series consists of three high gain PA modules with no external matching components. The modules are cost effective and provide high efficiency over a broad frequency bandwidth. They meet industry-standard SEM (spectral emission mask) tests and operate at 3.3V. These features allow designers to achieve standards-compliant performance in space constrained designs with low current. The features reduce the time to market while designing fixed or portable WiMAX or WiFi devices that are used in laptop computers, dongles and wireless access points. The linear amplifier modules cover frequency ranges of 2.3 to 2.7GHz (MGA-22003), 3.1 to 3.8GHz (MGA-23003) and 5.1 to 5.9GHz (MGA-25203). The modules have a voltage range of 3 to 5V and operating temperature range of -40 to +85°C.

The modules feature low current use and high linear power over a broad frequency range. These fully matched PA modules are designed with a biasing circuit that accounts for manufacturing variation. Designed using the company’s proprietary GaAs enhancement-mode pHEMT technology, the series can be used for high linearity applications. These PA modules exhibit flat gain and good matching and provide high linear power efficiency to meet the stringent mask conditions. The MGA-22003 and MGA-23003 are a part of the complete RF front end solution for WiMAX applications. These two parts can be paired with the company’s SP4T (single-pole four-throw) switch detector module to include all the front end RF functionality. The MGA-22003 meets the WiMAX forum 802.16 mask at over 25dBm power, and the MGA-23003 meets the ETSI 802.16 mask at over 25dBm power. Both have high gain greater than 34dB across the bands. A low power mode allows operation at approximately 100mA when low power is required. The MGA-25203 generates a full 23dBm power at -34dB EVM with 30dB gain at 5.4GHz.