發送短信

數:

提供者:

CAPTCHA:

             ___     _    _    _    _             
    ___     / _ \\  | || | || | || | ||   ____    
   /   ||  | / \ || | || | || | || | ||  |    \\  
  | [] ||  | \_/ || | \\_/ || | \\_/ ||  | [] ||  
   \__ ||   \___//   \____//   \____//   |  __//  
    -|_||   `---`     `---`     `---`    |_|`-`   
     `-`                                 `-`

Please enter what you see:

發送短信 : Compact asymmetric-slotted-slit patch based circularly-polarized antenna with reactive impedance surface substrate