Analyse and Design a micro strip spiral monopole antenna with and without indicator

In this work we portray the investigation and structure of configurable planar radio wire that can work in the WIFI of 2400 MHz and in the WLAN of 6400 MHz that is likewise in understanding with the expected parameters which is to be utilized for Cognitive applications. The radio wire was structured as a plane square winding that utilizes small scale strip innovation and the reconfigurability was made along with an inductor. Reconfigurability can be accomplished by utilizing PIN diode switches or by utilizing varactor diode / MEMS switches. A broad investigation of a Planer Inverted-Field radio wire (PIFA)was displayed to structure three resounding frequencies to cover GSM, DCS and DMB applications and it was accounted for that two collapsed parts, which can be added to the principle PIFA to make the two groups, here we are utilizing Inductor to accomplish the Re configurability.