October 18, 2007

Dear Valued Customer,

Northrop Grumman Space Technology has entered into a strategic agreement with Hittite Microwave Corporation to license Northrop Grumman?s Velocium Product line of Monolithic Microwave Integrated Circuits (MMIC) and related intellectual property. Under the agreement, NGST will license to Hittite a specified list of standard products with a frequency of operation through 86Ghz. Hittite will assume the related customer contracts and will become the worldwide supplier for the products.  Hittite will use Northrop Grumman Space Technology as a foundry supplier for Gallium Arsenide (GaAs) wafers used in the licensed products.

Northrop Grumman Space Technology will continue to offer foundry services for a wide array of GaAs and InP technologies, and will continue to market/offer off-the-shelf and custom products above 86 GHz addressing new emerging markets including millimeter-wave imaging, sensor, and communication applications.

Northrop Grumman Space Technology appreciates and values its business relationship with you.  For those of you with active Velocium purchase orders and product requirements that now fall under the Hittite umbrella, we are confident that you will be provided outstanding service and support for those needs by Hittite.  For product requirements that continue to fall under the Northrop Grumman umbrella, we look forward to the opportunity of continuing to support your needs in the future.  We are taking all steps necessary to make sure that this transition is conducted in an efficient manner

Further information may be found on our website in coming days at:

www.st.northropgrumman.com/velocium/

or you may contact:

Manny Quijije

310-813-9766

manny.quijije@ngc.com