In this paper, micro strip patch and slot antenna are describe. We similarly show about the reconfigurable antenna and their types like frequency, polarization, radiation pattern and gain. The antenna is capable of the frequency exchanging at ten different frequency between 3.4698 GHz and 6.0878 GHz. There are design and simulate the microstrip antenna, 1X2 array patch antenna and the 1X2 array patch antenna with PIN Diodes. The outcomes are accomplished distinctive frequencies, gain, bandwidth, directivity.