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PIER PIER B PIER C PIER M PIER Letters
2013-05-29
The Improvement of Array Antenna Performance with the Implementation of an Artificial Magnetic Conductor (AMC) Ground Plane and in-Phase Superstrate
By
Raimi Dewan,

    Dr. Raimi Dewan

    Faculty of Electrical Engineering

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Sharul Kamal Bin Abd Rahim,

    Dr. Sharul Kamal Bin Abd Rahim

    Fakulti Kejuruteraan Elektrik

    University Technology Malaysia

    Malaysia

    Homepage

Siti Fatimah Ausordin,

    Mrs. Siti Fatimah Ausordin

    Faculty of Electrical Engineering

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Teddy Purnamirza

    Dr. Teddy Purnamirza

    Department of Electrical Engineering

    Universitas Islam Negeri Sultan Syarif Kasim

    Indonesia

    Homepage

Progress In Electromagnetics Research, Vol. 140, 147-167, 2013
doi:10.2528/PIER13040206
Abstract
This paper discusses performance improvement with the integration of an artificial magnetic conductor (AMC) into array antennas. An AMC with defected ground structure (DGS) was designed to construct the AMC ground plane and in-phase superstrate. The two distinguishable structures were integrated into an array antenna, which serves as a reference antenna at 5.8 GHz. The impedance bandwidth (BW) of the reference antenna significantly improved to 287% when integrated with an AMC ground plane and with 37% reduced size. On the other hand, the integration of in-phase superstrate effectively enhances the gain and BW of the reference antenna by 1 dBi and 44%, respectively. The effects of air gaps on the reference antenna with both the AMC ground plane and in-phase superstrate are discussed. The antenna performance factors, such as return loss and radiation pattern, are also discussed for the reference antenna, the reference antenna with the AMC ground plane, and the reference antenna with in-phase superstrate, respectively. There is satisfactorily good agreement between the simulation and measurement results. The proposed antenna is useful in WLAN (5.15-5.35 GHz and 5.725-5.825 GHz) and WiMAX (5.725-5.825 GHz) applications.
Citation
Raimi Dewan, Sharul Kamal Bin Abd Rahim, Siti Fatimah Ausordin, and Teddy Purnamirza, "The Improvement of Array Antenna Performance with the Implementation of an Artificial Magnetic Conductor (AMC) Ground Plane and in-Phase Superstrate," Progress In Electromagnetics Research, Vol. 140, 147-167, 2013.
doi:10.2528/PIER13040206
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