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New Approach to Suppress Mutual Coupling Between Longitudinal-Slotted Arrays Based on SIW Antenna Loaded with Metal-Fences Working on VHF/UHF Frequency-Bands: Study, Investigation, and Principle

Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan Hwang; Abd-Alhameed, Raed; Falcone, Francisco; Limiti, Ernesto

Authors

Mohammad Alibakhshikenari

Bal S. Virdee

Raed Abd-Alhameed

Francisco Falcone

Ernesto Limiti



Abstract

In this work it is demonstrated that substrate integrated waveguide longitudinal slotted array antenna (SIWLSAA) which is loaded with metal fences exhibits highisolation across VHF/UHF bands. A reference SIWLSAA used for comparison purpose comprises of 3Γ—6 slotted arrays constructed on the top and bottom sides of the FR-4 lossy substrate has maximum isolation of -63 dB between its radiation slots. Improvement in isolation is demonstrated using a simple new technique based on inserting a metal fence between each row of slot arrays. The resulting isolation is shown to be is better than -83 dB across 200 MHz to 1.0 GHz with gain greater than 1.5 dBi, and side-lobe level less than - 40 dB. The proposed SIWLSAA is compact and has dimensions of 40Γ—10Γ—5 mm³ (0.026π›Œ0Γ—0.006π›Œ0Γ—0.002π›Œ0) where π›Œ0 is 200 MHz. The proposed structure should find application in multiple-input multiple-output (MIMO) and radar systems.

Citation

Alibakhshikenari, M., Virdee, B. S., See, C. H., Abd-Alhameed, R., Falcone, F., & Limiti, E. (2018). New Approach to Suppress Mutual Coupling Between Longitudinal-Slotted Arrays Based on SIW Antenna Loaded with Metal-Fences Working on VHF/UHF Frequency-Bands: Study, Investigation, and Principle.

Conference Name 14th Conference on PhD research in Microelectronics and Electronics (PRIME 2018)
Conference Location Prague, Czech Republic
Start Date Jul 2, 2018
End Date Jul 5, 2018
Acceptance Date May 7, 2018
Publication Date Jul 9, 2018
Deposit Date May 27, 2019
Pages 1-4
ISBN 9781538653869
Keywords Substrate Integrated Waveguide (SIW), slotted array antenna, reduction mutual coupling, metal fences, isolation, multiple output multiple input (MIMO) systems
Public URL http://researchrepository.napier.ac.uk/Output/1830620