Sirenza Microdevices awarded patent to improve dynamic range of transimpedance amplifiers

July 2, 2002
July 2, 2002--Sirenza Microdevices, a designer and supplier of high-performance radio-frequency components for communications equipment manufacturers, announced that it has been awarded US patent number 6,404,281, entitled "Wide Dynamic Range Transimpedance Amplifier."

July 2, 2002--Sirenza Microdevices, a designer and supplier of high-performance radio-frequency components for communications equipment manufacturers, announced that it has been awarded US patent number 6,404,281, entitled "Wide Dynamic Range Transimpedance Amplifier."

The new patent discloses a unique approach to improving the dynamic range of transimpedance amplifiers. This technique is being used in Sirenza's 10 and 40-Gbit/sec transimpedance amplifier product development fabricated in silicon germanium (SiGe), gallium arsenide (GaAs), and indium phosphide (InP) technologies.

Kevin Kobayashi, director of advanced design for Sirenza, and inventor of the newly patented approach, said, "This approach improves dynamic range of fiber-optic receivers, while allowing high receiver sensitivity and low DC power consumption. For example, our 10-Gbit/sec SFT-0100 InGaP transimpedance amplifiers have demonstrated a dynamic range of 21 dB and a high sensitivity of -19.6 dBm, while consuming only 250 mW of DC power."

This is one of a number of pending patents filed by Sirenza Microdevices to protect its fiber-optic component design solutions. It is also Sirenza's second significant patent award for the company's fiber-optic amplifier intellectual property this quarter.

Sirenza's development efforts are focused on new circuit solutions in both the wireline and wireless product arenas. Expertise with multiple advanced semiconductor technologies enables Sirenza to leverage its design intellectual property to provide high-linearity, wide-dynamic-range product solutions for its customers.

Headquartered in Sunnyvale, Calif., with design centers throughout the U.S. and Canada, Sirenza Microdevices is an ISO 9001:2000-certified supplier of high-performance RF components for the wireless and wireline telecommunications markets. Products include amplifiers, power amplifiers, discrete products, RF signal-processing components, fiber-optic components and high-performance multicomponent modules (MCMs) for transmit and receive applications. Product information can be found on Sirenza Microdevices' Web site at www.sirenza.com.

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