Exhibit 11.1 WIRELESS TELECOM GROUP, INC. COMPUTATION OF PER SHARE EARNINGS (Unaudited) For the Three Months Ended March 31, --------------- 2005 2004 ---- ---- Net Income $1,070,601 $187,867 ========== ======== BASIC EARNINGS: Weighted average number of common shares outstanding 17,461,923 16,998,978 ========== ======== Basic earnings per common share $0.06 $0.01 ========== ======== DILUTED EARNINGS: Weighted average number of common shares outstanding 17,461,923 16,998,978 Assumed exercise of stock options 183,320 610,680 ---------- ---------- Weighted average number of common shares outstanding, as adjusted 17,645,243 17,609,658 ========== ======== Diluted earnings per common share $0.06 $0.01 ========== ========