Design and Development of Compact Microstrip Meandered Slot Antenna

Electronics and Communication Engineering

Microstrip patch antenna is a lightweight, inexpensive antenna which is used for various applications such as Bluetooth, WLAN, satellite communication, biomedical applications and telemedicine due to its Compact size. This work aims at reducing the size of the antenna using meander slot. In this work we explored reduction, which makes it appropriate to apply for more applications. In this paper, a compact microstrip meandered slot antenna is designed by selecting a suitable offset feed position, it is feasible to provide 50 ohm characteristic impedance and thus making better impedance matching. The slot antenna is designed in meandered shape, so we get the advantages of both meandered shape and slot antenna. The proposed antenna has to be fabricated with FR4 substrate and dimensions of (19 x 22 x 1.6) mm. An extensive analysis of the return loss, radiation pattern and efficiency of the proposed antenna is shown in this paper. Finally, a prototype antenna operating at 4.2 GHz which is C band frequency is designed and fabricated. The permittivity of the substrate is 4.4. There is a good agreement between the measurement and simulation results.

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