Design and Analysis of Quad Band Antenna for Wireless Systems

In this topic we are going to design a compact size antenna which is used for different band using a single antenna. The term compact means the size of antenna is very less, which is 24×30mm². In this antenna designing we are using partial ground plane and is fabricated on Roger RTduroid 5880 with thickness of 0.79mm. In this antenna we have three inverted L shaped stub and a stub of combination of inverted L shape and T shape. This antenna resonates at three frequencies 2.54/3.51/4.38/5.3GHz. So the operating range of antenna covers these frequencies so main use of this antenna is in Wi-MAX (wide interoperability for microwave access) and WLAN (wireless local area network) and radio altimeter, satellite communication, cordless telephones and weather radar systems. All the parameters and details are examined in following points.