Study And Realization Of A Multiband Microstrip Antenna
Résumé: A microstrip patch antenna having the shape of the letter Z written in the Berber language Tifinagh transcription has been simulated in previous works and it has been noticed that it exhibits interesting multiband features. However, all carried analyses were confined in the theoretical and simulation aspects and were not validated experimentally. In this work, this antenna shape is reconsidered in the frequency range extending up to 6 GHz and simulated taking into account practical considerations related to used materials and experimental aspects. The antenna dimensions and configuration have been modified accordingly to meet desired resonant frequencies. After that, the developed structure was fabricated and its return loss measured. Though the oldness of the used substrate board, a good agreement is obtained between simulation and experimental results; the simulated resonant frequencies are located at 0.96 GHz, 2.45 GHz and 4.11 GHz whereas the measured ones were at 0.97GHz, 2.56 GHz and 4.22 GHz. Also, a similar and adequate impedance matching is observed in both simulated and experimental results. The developed antenna can be used in various applications such as GSM and Wi-Fi/WLAN.
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