Dr. Reena Kumari L. N. Mithila University, Darbhanga, Bihar, India.
In this present paper we studied about radiation with microstrip patch antenna.In the early
days of mobile communications, the case, being made of metal, was simply treated as a ground plane, because
radiation currents flow on it as well as on the antenna element. Conventional antenna design uses image
technique to provide the infinite ground plane. This theory is not possible while designing electrically small
ground plane antennas. In the case of a whip type antenna, the ground plane can be treated as the other half of the
dipole to the antenna. The characteristics of small antennas mounted on the handheld devices are get affected by
the antenna position on the terminal chases and the dimensions of the chases due to the existence of radiating
surface currents on the terminal ground plane induced by the antenna element.