Narrowband to Narrowband Frequency Tunable Slotted Dipole Antenna

In this paper, the slotted dipole antenna structure is proposed to have four narrowband frequencies with ability to be reconfigured. Narrowband reconfiguration can be achieved by controlling the length of slotted dipole by using switches. The narrowband frequency is to be at 1.8 GHz (GSM), 2.4 GHz (...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-02, Vol.1755 (1), p.12036
Main Authors: Rodi, R. I. M., Osman, M. N., Rahim, M. K. A., Jusoh, M., Sabapathy, T., Abdullah Al-Hadi, A., Soh, P. J.
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Antennas
Cellular communication
Configurations
Dipole antennas
Inductors
Narrowband
Physics
PIN diodes
Reconfiguration
Switches
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Summary:In this paper, the slotted dipole antenna structure is proposed to have four narrowband frequencies with ability to be reconfigured. Narrowband reconfiguration can be achieved by controlling the length of slotted dipole by using switches. The narrowband frequency is to be at 1.8 GHz (GSM), 2.4 GHz (WLAN), 2.6 GHz (4G), and 3.5 GHz (5G) respectively. The longest dipole length produced 1.8 GHz, the second-longest dipole length produced 2.4 GHz, the third-longest dipole length produced 2.6 GHz, while the smallest dipole length produced 3.5 GHz. To maintain the stability of the RF current in the system, sixteen capacitors were used. As well eight inductors were used to isolate the RF current and power supply. The PIN diode was used as a switch to allow the induced current to stop and pass into the slot which means that it can be used to select the desired frequency. Depending on switching configuration, the operating frequency is tuned. Good matching is achieved for all configurations. The simulated result of gain for the four operating is higher than 2 dB while the omnidirectional radiation pattern has been obtained thus makes the proposed antenna suitable for wireless application.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1755/1/012036