發送短信 : Study of broadband printed dipole antennas

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