發送短信 : Design, fabrication, and testing of three-dimensional miniaturized rectangular cavity resonator based on metamaterial

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