EXHIBIT 32.1 CERTIFICATION OF PERIODIC REPORT I, Robert A. Bruggeworth, Chief Executive Officer of RF Micro Devices, Inc. (the "Company"), certify pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that: (1) the Quarterly Report on Form 10-Q of the Company for the quarterly period ended June 30, 2004 (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. /s/ Robert A. Bruggeworth - ---------------------------------------- Robert A. Bruggeworth President and Chief Executive Officer August 10, 2004