Publication: A 25/28 GHz Modified ?-shaped SIW-based Self-Diplexing Antenna with Low Frequency Ratio for 5G Applications
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Date
2021
Journal Title
2021 IEEE Indian Conference on Antennas and Propagation, InCAP 2021
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
In this paper, a compact substrate integrated waveguide (SIW) based self-diplexing slot antenna for 25/28 GHz fifth generation (5G) applications is presented. The SIW cavity is loaded with a 7r-shaped asymmetric slot that produce two distinct frequency bands and hence, self-diplexing antenna (SDA) characteristics with low frequency-ratio. The placement of the slot is chosen in such a way that it helps in creating weak cross-coupling path between the excitation ports. The slight modification in the slots dimensions further improves the isolation (>30 dB) in both frequency bands. The simulated peak gain and radiation efficiency in both frequency bands are 8.64 dBi, 9.54 dBi and 98.18%, 96.73%, respectively. The front-to-back ratio (FTBR) of more than 22 dB in both frequency bands is achieved. � 2021 IEEE.
Description
Keywords
5G, asymmetric 7r-shaped slot, isolation, self-diplexing antenna, substrate-integrated waveguide