發送短信 : A Study of Gain Improvement of a Slot Antenna Using Curved Metallic Holes Structure

__    __    _____     _____      ___      ______  
\ \\ / //  |  ___||  / ____||   / _ \\   /_____// 
 \ \/ //   | ||__   / //---`'  / //\ \\  `____ `  
  \  //    | ||__   \ \\___   |  ___  || /___//   
   \//     |_____||  \_____|| |_||  |_|| `__ `    
    `      `-----`    `----`  `-`   `-`  /_//     
                                         `-`