N ANTENNAS AND THEIR APPLICATIONS IN PORTABLE HANDSETS

In this paper, a new antenna, the N antenna, is proposed for use in mo bile communication systems, Detailed investigations are presented thro ugh the results obtained using numerical simulations and measurements, The newly proposed antenna has many attractive features such as a wid e bandwidth, stable radiation patterns, and a compact structure, The a pplication of the N antenna is exemplified through portable handsets, It is shown that in the presence of an operator, the efficiency of the antenna system of a portable handset increases and the maximum specif ic absorption rate (SAR) is significantly reduced by using the N anten na.