Planar Inverted-F Antennas Structures for Mobile Communications
In answer to the increasing demand for portable terminal antenna, many of the works were all these years shorted-circuit quarter from the more commonly known PIFA wave antenna (planar inverted-F antenna). The main advantage of this antenna is their weak c
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Planar Inverted-F Antennas Structures for Mobile Communications Ming Li and Juan Song
Abstract In answer to the increasing demand for portable terminal antenna, many of the works were all these years shorted-circuit quarter from the more commonly known PIFA wave antenna (planar inverted-F antenna). The main advantage of this antenna is their weak compactness and manufacturing cost, in addition to their important performance. In this chapter we put forward the new antenna-type geometry. Elements of coaxial probe feed. The design of the structure of advice from a simple PIFA antenna, based on software IE3D makes it possible to have Bi-bands, tri-bands, and quadribands antenna.
Keywords PIFA Antenna HFSS and IE3D Software Mobile Communications
26.1 Introduction Different communication standards require more and more low radiation structures crowded in telecom equipments [1]. Again and again to answer these questions, it is wise to develop thick, low compact antenna for the good performance of storage in adapting to the conditions for radiation efficiency. In addition, the concept of multiband antenna is impossible, because it allows the party of many of the same features as the radiation structure to remain [2]. The work presented in this paper describe the study of a PIFA antenna (planar inverted-F antenna) which has length approximately equal to k/4 [3, 4].
M. Li (&) J. Song Henan Mechanical and Electrical Engineering College, Xinxiang 453002, Henan, People’s Republic of China e-mail: [email protected]
Z. Zhong (ed.), Proceedings of the International Conference on Information Engineering and Applications (IEA) 2012, Lecture Notes in Electrical Engineering 219, DOI: 10.1007/978-1-4471-4853-1_26, Ó Springer-Verlag London 2013
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26.2 PIFA Antenna PIFA antenna is a ground plane, radiation unit, feed, and wire or wires of shortcircuit article circuit, with connections between landlines and top plate. Figure 26.1 shows a typical PIFA configuration. Antenna is feeding in the location of the base line which connects the electric wire. This is a very attractive PIFA antenna; wireless system in space within the antenna, wireless system is quite limited. The addition of a shorting circuit strip allows giving good input impedance measurement to be achieved with a top plate that is typically less than k/4 [5]. Feed circuit One and a half rigid coaxial has a central conductor extension at the end of the outer conductor which is used to form PIFA thread feeding. The conductor of the coaxial is the edge of the welding showing a small hole in the ground plane position. The common circuit board-type PIFA short selling is a better way to reduce the antenna size, but the results are narrow impedance bandwidth. Our study is based on a simple PIFA antenna presented in Fig. 26.2 The PIFA is designed to operate at 2.4 GHz as [6]: fr ¼ c½4ðW þ LÞ1
ð26:1Þ
where c is the velocity of light, W and L are, respectively, the antenna width and length. In order to validate our results, we initially simula
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