A Ka-band CPW-Slot-Couple (CSC) fed microstrip antenna with enhanced bandwidth and gain is presented in this paper. To simplify the feed network, matching slots are designed at end of CPW. Consequently, patch a low profile, which has size 7.2 × 32.6 0.508 mm3. Characteristic mode analysis (CMA) applied to illustrate principle enhancement band form characteristic point view. slot based on induct...