X0202 4 2005-09-13 0 0000922204 RF MONOLITHICS INC /DE/ RFMI 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M 153 E 53RD ST 55TH FL NEW YORK NY 10022 0 0 1 0 Common Stock 2005-09-13 4 P 0 3600 5.861 A 808005 I By Limited Partnerships This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Technology Fund, L.P. (Tech) and Special Situations Technology II, L.P. (Tech II), respectively. 113,760 shares of Common Stock are held by Tech and 694,245 shares of Common Stock are held by Tech II. The interest of Marxe and Greenhouse in the shares of Common Stock owned by Tech and Tech II is limited to the extent of his pecuniary interest. Austin W. Marxe 2005-09-15 David M. Greenhouse 2005-09-15