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Sirenza Microdevices Awarded Patent on Dynamic Feedback Linearization

Thursday, May 17, 2007

Broomfield, CO -- Sirenza Microdevices (Nasdaq: SMDI) today announced the company has been awarded U.S. patent no. 7,218,175 entitled "Dynamic Feedback Linearization."

This new U.S. patent discloses a means for improving linearity and efficiency for a wide breadth of amplifier applications.

"This patent is directly applicable to our core amplifier product lines," stated Kevin Kobayashi, executive engineering fellow. "For example, combined with our two previous bias patents, this dynamic feedback technique can enable a more efficient class of operation for our traditional Darlington feedback amplifier products. An IP3 to dc power ratio linearity figure of merit of 26.9:1 has been demonstrated at 2 GHz. This is an improvement of three times in linear efficiency over a conventional approach using the same semiconductor technology."

Joe Johnson, chief technical officer, stated, "The implications of this patent are far reaching and may have a wide breadth of applications for low power wireless devices."

Sirenza Microdevices

Sirenza Microdevices is a supplier of radio frequency (RF) components. Headquartered in Broomfield, Colorado, with operations in China, Germany and the U.S., Sirenza Microdevices and its subsidiary Premier Devices design and develop RF components for the commercial communications, consumer, and aerospace and defense (A&D) equipment markets. Sirenza's integrated circuit (IC), multi-chip module (MCM) and passive product lines include amplifiers, power amplifiers, cable TV amplifiers, circulators, isolators, mixers, splitters, transformers, couplers, modulators, demodulators, transceivers, tuners, discrete devices, signal source components, government and military specified components, and antennae and receivers for satellite radio. Certifications include ISO 9001:2000 Quality Management System and ISO 14001:2004 Environmental Management System (registered by QMI). Detailed product information may be found on Sirenza's website at and at

Safe Harbor for Forward-Looking Statements

This press release contains forward-looking statements regarding future events, such as any statements as to the implications or breadth of the potential applications for this patent, or any statements as to potential improvements in performance or other impacts of the patented technique on any Sirenza products implementing this technology. We wish to caution the reader that such statements are, in fact, predictions, and that actual events or results may differ materially. In particular, there is no assurance that such implications, applications or improvements will materialize. Other risks are included in our filings with the Securities and Exchange Commission; particularly our most recently filed Quarterly Report on Form 10-Q filed in May 2007. Sirenza expressly disclaims any current intention to update its forward-looking statements, and the estimates and assumptions associated with them, at any time or for any reason.

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