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Vícepásmová anténa pro GSM (900/1800) / Multiband antenna for GSM (900/1800)Kalánek, Jakub Unknown Date (has links)
This work deals with the principles on which they are based multiband antennas, especially for GSM (900/1800). It then focuses on different ways you can implement these multi-band antennas, mainly deals with structures that can be easily realized using planar technology. These antennas was designed and optimized in electromagnetic simulation software. Selected antenna was practically realized.
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Design of Frequency Reconfigurable Multiband Compact Antenna using two PIN diodes for WLAN/WiMAX ApplicationsAbdulraheem, Yasir I., Oguntala, George A., Abdullah, Abdulkareem S., Mohammed, Husham J., Ali, R.A., Abd-Alhameed, Raed, Noras, James M. 21 February 2017 (has links)
Yes / In this paper, we present a simple reconfigurable multiband antenna with two PIN diode switches for WiMAX/WLAN applications. The antenna permits reconfigurable switching in up to ten frequency bands between 2.2 GHz and 6 GHz, with relative impedance bandwidths of around 2.5% and 8%. The proposed antenna has been simulated using CST microwave studio software and fabricated on an FR-4 substrate. It is compact, with an area of 50 × 45 mm2, and has a slotted ground substrate. Both measured and simulated return loss characteristics of the optimized antenna show that it satisfies the requirement of 2.4/5.8 GHz WLAN and 3.5 GHz WiMAX antenna applications. Moreover, there is good agreement between the measured and simulated result in terms of radiation pattern and gain. / Engineering and Physical Science Research Council through Grant EP/E022936A.
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