PRODUCT INNOVATIONS
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Infineon - RF power transistors
New LDMOS RF power transistors with up to 170 W target 2.5 to 2.7 GHz WiMAX applications
Infineon Technologies announced two new LDMOS RF power transistors
targeting wireless infrastructure applications, such as WiMAX, in the
2.5 GHz-to-2.7 GHz frequency band. These products, which provide peak
output power of up to 170 W, extend Infineon’s broad portfolio of
RF power transistors for WiMAX applications, which currently includes
10 W, 45 W and 130 W devices. The high peak power performance of the
new LDMOS RF power transistors will enable designers to simplify their
RF power amplifier designs.
“With this addition to its comprehensive product portfolio,
Infineon continues to offer the highest peak power RF power transistors
in the market,” said Helmut Volger, Vice President and General
Manager for RF Power, Infineon Technologies. “As the wireless
infrastructure market adopts WiMAX and other new technologies, such
products as Infineon’s LDMOS RF power transistors, with their
enhanced features and capabilities, become a crucial element in a
designer’s tool kit. The higher peak power enables designers to
develop a simpler design, and lowers the overall bill of
materials.”
Infineon’s PTFA260851E/F 85W FET features 14 dB gain (typical)
and 22 percent efficiency (typical) at 16 W average output power, under
WiMAX signal conditions. The PTFA261702E 170W FET features 15 dB gain
(typical) and 20 percent efficiency at 32 W average output power, under
WiMAX signal conditions.
Infineon’s PTFA261702E is rated at 170W (P-1 dB), the
industry’s highest peak output power in the 2.5 GHz-to-2.7 GHz
band. The transistor’s architecture provides electrically
isolated halves that ease use in Doherty power amplifier applications.
The device can also be used in a push-pull configuration for extended
bandwidth performance.
Both products are available in lead-free, RoHS-compliant ceramic
packages. Operating at 28 V, these transistors provide broadband
internal matching, and are capable of handling a 10:1 VSWR (voltage
standing wave ratio) at CW (continuous wave) power output and 28 V
supply voltage.
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