Compact reconfigurable PIFA antenna for wireless applications

Abstract

This paper presents, new compact and multiband frequency reconfigurable planar inverted-F antenna (PIFA). The antenna is designed and optimized to cover mobile application devices like GPS, WLAN/Wi-Fi, WiMAX, 4G LTE, UWB, and satellite applications. The frequency reconfigurability is obtained by using only a single RF switch (PIN diode) for changing the operating frequency. The antenna dimensions are 45.6x39.6x1.6 mm 3 printed on an FR-4 epoxy substrate with relative dielectric constant εr = 4.3, loss tangent tan (δ) = 0.002 and 50 Ω coaxial feed line. The proposed antenna has two patches connected by a single PIN diode. The antenna introduces nine resonant frequencies under (S11 ≤ -10 dB) which are: 0.980 GHz,

Modeling and Designing of a Compact Single Band PIFA Antenna for Wireless Application Using Artificial Neural Network

“…They have the same length as the distance between the top patch and the ground plane. The standard design formula for a PIFA antenna is given by [18,19]:…”

Enhancement of gain using a multilayer superstrate metasurface cell array with a microstrip patch antenna

“…Each of these techniques has its own set of benefits and drawbacks. The number of metasurface layers, the distance between them, the shape of the single cell, the distance between the cell parts that form resonance, and the radiation elements significantly affect the antenna power gain [11]- [14]. The position of the metasurface layer and the number of cells forming the array in front of or behind the bag also has a great effect on the antenna properties, especially the gain, and the number of single cells and the resonant frequency of the built-in antenna affect the gain value [15]- [17].…”

A multiband and wideband frequency reconfigurable slotted bowtie antenna

“…The configurations can be switched between the same mode or to another type of mode. For example, narrow-to-narrowband [3], narrow-to-wideband [4,5], multi-tomultiband [6][7][8][9][10], multi-to-wideband [11][12][13][14][15][16][17][18], wide-to-wideband [19] and wide-to-narrow-to-multiband [20,21] configurations have been proposed and discussed. However, in this paper, we only focus on configurations of narrow-to-wideband and multi-to-wideband.…”

“…The antenna provides dual-band mode at 1.8 GHz and 5.2 GHz, and a wideband mode at 1.6 GHz to 2.37 GHz. All antennas presented in [2,3,[8][9][10][11][12][13][14][15] have switched multi or narrowband mode within the wideband frequency range. If the multi or the narrowband mode is outside the wideband range, narrow-and-wideband modes can be operated simultaneously as shown in [22].…”

“…Only one of them operates in wideband mode whereas the others operate in narrow-and-wideband mode. This type of antenna offers more functionality compared to [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] by covering wider operating bands.…”