發送短信 : Matched symmetrical five-port microstrip coupler

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