Abstract
Recently, the demand for wireless devices that support multiband frequency has increased. The integration of such technology in mobile communication system has led to a great demand in developing small size antenna with multiband operation, which is able to operate in the required system. In this paper, a novel type planar inverted F antenna (PIFA) with gridded ground plane structure and overlapping cells is presented. By controlling the overlapping size, we improve the characteristics of the proposed antenna. This antenna is developed to achieve multiband operation with small size and good performance. The particle swarm optimization (PSO) is employed to a PIFA antenna to get rid of the limitations of single band operation by searching the optimal localization and length of linear slots on the ground plane to give triband operation. This PIFA antenna can be integrated to operate for several mobile applications as Bluetooth/WLAN, WIMAX, and 4G (UMTS2100, LTE). The optimized antenna is simulated by both Ansoft HFSS and computer simulation technology microwave studio (CSTMWS) in terms of S-parameters. A good agreement between simulated performances by both software types is achieved. A parametric study is made to analyze the effect of different PIFA parameters on the operating frequency and the reflection coefficient in order to enhance the antenna performances. In these frequency bands, the antenna has nearly omnidirectional radiation pattern.
Highlights
Mobile handset antennas require characteristics such as compact size, wide bandwidth, and simple structure [1]
This paper presents a triband planar inverted F antenna (PIFA) antenna operating at UMTS2100 (1.92–2.17 GHz), LTE 2300/2600 (2.3–2.4 GHz/ 2.50–2.69 GHz), Bluetooth/WLAN (2.4–2.48 GHz/5.72– 5.82 GHz), and WIMAX (2.5–2.8 GHz)
All the simulation results for triband PIFA for UMTS2100 (1.92–2.17 GHz), LTE 2300/2600 (2.3– 2.4 GHz/2.50–2.69 GHZ), Bluetooth/WLAN (2.4–2.48 GHz/ 5.72–5.82 GHz), and WIMAX (2.5–2.8 GHz) will be presented in detail
Summary
Mobile handset antennas require characteristics such as compact size, wide bandwidth, and simple structure [1]. The planar antennas are a generation of antennas boasting the attractive features required; one of them is planar inverted F antenna (PIFA). Because of their small volume, thin profile, and ease of fabrication, PIFAs (planar inverted F antennas) have been shown to be a promising alternative to meet the requirements for mobile handset antennas [2, 3]. In [10], the multiband operation is achieved by comprising three top patches, by using S-shaped patch [11], by employing fractal method [12,13,14], and by introducing the slots on the ground plane [15,16,17]
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