Affiliation:
1. Department of Electrical Engineering, University of Birjand, Birjand, Iran
Abstract
Background:
In this paper, a new frequency-selective structure (FSS) for 3 to 4 GHz frequency
band of fifth generation (5G) is proposed as a result of an analytical mode-matching method.
Methods:
A new periodic structure with stepped rods is designed using a closed-form equation derived
by the analytical mode-matching method. Performance of the structure is simulated by different
numerical packages.
Results:
The analytical and simulation results demonstrate that the designed structure transmits incident
waves in 3.4 to 3.9 GHz frequency range with return loss lower than 10 dB and insertion loss
of about 0.5 dB. The structure reflects the frequencies out of this range, especially wireless local
area network (WLAN) 5 GHz, which is adjacent to this band. Furthermore, the performance of the
proposed structure is independent of the TE and TM polarization of the incident wave and relative
to the angle of the incident wave up to 60 degrees from perpendicular to the FSS surface, it has minor
variations of about 8% in the transmitted frequency bandwidth. In addition, the average value of
maximum field enhancement factor (MFEF) as the ratio of maximum field magnitude on the FSS
surface to the magnitude of the incident field, used for assessing power handling capability of the
structure, is about 4.5.
Conclusion:
Therefore, these features make the proposed structure suitable for 5G communication
and high power systems.
Publisher
Bentham Science Publishers Ltd.
Subject
Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials