發送短信 : Matched symmetrical five-port microstrip coupler

  _____     _____    _____      _____     _  __  
 |__  //   |  ___|| |  __ \\   |  ___||  | |/ // 
   / //    | ||__   | |  \ ||  | ||__    | ' //  
  / //__   | ||__   | |__/ ||  | ||__    | . \\  
 /_____||  |_____|| |_____//   |_____||  |_|\_\\ 
 `-----`   `-----`   -----`    `-----`   `-` --`