Abstract
Multiband phased array antennas are required for today’s multi-function communication applications. Generally Microstrip antenna arrays like Kotch array, Sierpinski array are used, but in some circuits where space is limited, arrays are not used. Therefore, to achieve the multiband operation with limited space, an antenna is designed with E-shaped in combination with split ring resonator to achieve the multiband operation. The simulation and experimental results show that the proposed antenna operates at four different frequencies, 1.8GHz, 3.6GHz, 4.53GHz and 5.73GHz, which can be used for different wireless applications like GSM 1800 (1.71– 1.78 GHz), WiMAX (3.4-3.69GHz) -IEEE 802.16 standards, Wi-Fi/WLAN (5.15-5.82 GHz). All the simulation results like resonant frequency, return loss, radiation patterns and fabricated antenna measured result is presented in this paper. The antenna is simulated using CST 2014 software.
Highlights
In the present generation wireless communication systems are rapidly developing due to increasing demand for the mobile equipment which is to be connected with different devices operating at multiple frequencies [1]
Multiband antenna plays crucial role in wireless communication systems as it can operate in multiple frequency bands for different wireless applications like Global System for Mobile communication (GSM), Wireless Local Area Network (WLAN), and Worldwide Interoperability for Microwave Access (Wi-MAX), and Wireless Fidelity (Wi- Fi)
For second frequency i.e. for 3.6GHz the return loss is about -28.105dB, the third resonant frequency is obtained at 4.5GHz, where the return loss is about - 18.8dB
Summary
In the present generation wireless communication systems are rapidly developing due to increasing demand for the mobile equipment which is to be connected with different devices operating at multiple frequencies [1]. Multiband antenna plays crucial role in wireless communication systems as it can operate in multiple frequency bands for different wireless applications like Global System for Mobile communication (GSM), Wireless Local Area Network (WLAN), and Worldwide Interoperability for Microwave Access (Wi-MAX), and Wireless Fidelity (Wi- Fi). Slots are made in the patch to obtain multiband characteristics [4,5,6]. Microstrip line feeding is used for the proposed antenna as it is easy to fabricate.
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