A Frequency Reconfigurable Monopole Antenna Using for portable devices

electronice&communication

With the rapid advancement in wireless communication technologies, the demand for multi-band mobile devices is increasing. For example, the current wireless transceivers have to support various communication protocols such as LTE, WiMAX and WLAN simultaneously. Each of these technologies operates at a different frequency band. Therefore, instead of using several antennas, it is more compact and efficient to use one multi-band antenna that accommodates multiple modes. A reconfigurable antenna is an antenna capable of modifying dynamically its frequency and radiation properties in a controlled and reversible manner in order to provide a dynamical response. By using different reconfiguration of patch we got different result of gain, bandwidth and efficiency. So it is beneficial for compactness. The reconfigurable monopole antenna on proposed by incorporating resonators to monopole antenna. Electronic switches are mounted across these resonators to serve in activating or deactivating their resonance frequency, thus leading to reconfigurability.

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