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Unwanted Effects of Defects Used in Microstrip Antenna Designs and Possible Solutions
Published in Institute of Electrical and Electronics Engineers Inc.
This paper address some unwanted effect caused by the defects in the defected ground structure (DGS) integrated antennas those are popular for suppressed cross-polarized (XP) radiations. An innovative design with asymmetric-arc-DGS has been explored which results in better performance over the earlier reported designs. Some increase in the back radiation is also associated with DGS integrated antennas. A novel configuration of parallel electric walls has been proposed to take care of these back radiations. Detail investigations have been carried out at X-band using simulated results. The proposed DGS provides about 18 dB suppression in the peak XP radiations. The side-walls provides about 10 dB suppression in the radiations towards the backside of the antenna. With this configuration, the XP radiations is found to be 30 dB below the co-polarized peak over the complete azimuth range in both the principal planes. © 2018 IEEE.
About the journal
JournalData powered by Typeset2018 IEEE Indian Conference on Antennas and Propagation, InCAP 2018
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
Open AccessNo