Broadband and high gain multilayer multiresonator elliptical microstrip antenna. Issue 8 (12th May 2020)

• Record Type: Journal Article
• Authors: Chopra, Rinkee; Kumar, Girish
• Is Part Of: IET microwaves, antennas & propagation. Volume 14:Issue 8(2020)
• Page Start: 821
• Page End: 829
• Publication Date: 2020-05-12
• Subjects: microstrip antennas -- antenna feeds -- broadband antennas -- multilayers -- resonators -- antenna testing; circular patches -- FR4 substrate layer -- circular shapes -- elliptical shapes -- antenna design parameters -- metallic fed patch -- broadband high gain multilayer multiresonator elliptical microstrip antenna -- elliptical 1B2 T MSA -- metallic cavity -- GPS -- Wi‐Fi frequency band applications -- 4G frequency band applications -- 3G frequency band applications -- 2G frequency band applications; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2019.0186
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : In this study, a low cost, broadband and high gain multilayer multiresonator microstrip antenna (MSA) is designed. It consists of one metallic fed patch at the bottom layer and two circular patches (1B2 T) are printed on the bottom side of the top FR4 substrate layer, which is air suspended. Two configurations with the bottom patch of circular and elliptical shapes are compared. The elliptical 1B2 T MSA provides better bandwidth (BW), i.e. 53.4% with peak gain of 9.8 dBi. The antenna design parameters are selected to provide maximum BW with uniform gain. The elliptical 1B2 T MSA is further enclosed in a metallic cavity, which improves the BW, gain and front to back (F/B) ratio of the antenna. The elliptical 1B2 T MSA with cavity enclosure is fabricated and tested. Experimental results are in agreement with simulated ones. The elliptical 1B2 T MSA with cavity provides 55.7% BW with peak gain of 12.1 dBi and F/B of >18 dB. The proposed antenna can be used in GPS, 2G, 3G, 4G and Wi‐Fi frequency bands applications.