Dual Band Microstrip Antenna
DOI:
https://doi.org/10.33414/rtyc.52.23-35.2025Keywords:
Antenna, dual band, microstripAbstract
The amount of data in today’s communication systems is increasing considerably, which in turn increases the bandwidth needed to deploy a given service. This requires antennas that are capable of operating simultaneously in more than one band. In this work we present the modeling and development of a rectangular patch type dual band antenna operating at 900 and 1800 MHz. To achieve this, the antenna is modeled as a resonant cavity with electric walls on the upper and lower faces and magnetic walls on the sides. To achieve dual band operation shorting pins are used which allow the fundamental resonant frequency of the antenna to be adjusted to the desired value. The design is analyzed by simulation with the electromagnetic computational tool CST. Measurements carried out on a prototype show a return loss of less than -23 dB, a bandwidth of 22 MHz in the lower band and 60 MHz in the upper band for a SWR less than or equal to 2 and a directivity greater than 7 dBi. We can argue that the antenna presents good characteristics for its operation in current systems.
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Copyright (c) 2025 Juan Eduardo Ise, Axel Hemsy, Mariano Fagre, Fernando Alberto Miranda Bonomi, Miguel Angel Cabrera, Jorge Scandaliaris
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
