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           _    _     ____      ______    _____   
  ____    | || | ||  |  _ \\   /_   _//  |__  //  
 |    \\  | || | ||  | |_| ||   -| ||-     / //   
 | [] ||  | \\_/ ||  | .  //    _| ||_    / //__  
 |  __//   \____//   |_|\_\\   /_____//  /_____|| 
 |_|`-`     `---`    `-` --`   `-----`   `-----`  
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Text this: Circular-slotted microstrip antenna for GPS