Design of multiband multipolarised single feed patch antenna. Issue 15 (19th October 2018)

• Record Type: Journal Article
• Authors: Dabas, Tanvi; Kanaujia, Binod Kumar; Gangwar, Deepak; Gautam, Anil Kumar; Rambabu, Karumudi
• Is Part Of: IET microwaves, antennas & propagation. Volume 12:Issue 15(2018)
• Page Start: 2372
• Page End: 2378
• Publication Date: 2018-10-19
• Subjects: antenna feeds -- microstrip antennas -- multifrequency antennas -- antenna radiation patterns -- UHF antennas -- electromagnetic wave polarisation -- UHF resonators; right‐hand circular polarisation -- linear polarisation -- left‐hand circular polarisation -- multiband multipolarised single feed patch antenna -- complementary split ring resonator -- single layer geometry -- Y‐shaped feed structure -- low‐cost FR4 substrate -- low profile antenna -- corner truncated patch -- orthogonal mode excitation -- frequency 2.313 GHz to 2.478 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2018.5401
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A new low profile, multiband, multipolarised single feed antenna is designed. A corner truncated patch loaded with slots and a complementary split ring resonator is used to achieve three frequency bands with different polarisations. The antenna exhibits right‐hand circular, linear, and left‐hand circular polarisation at three different bands, respectively. To obtain circular polarisation, orthogonal modes are excited by truncating corners of the patch and etching slits. Single feed, single layer geometry with Y‐shaped feed structure is employed. The antenna is fabricated on a low‐cost FR4 substrate with an overall size of 70 mm × 70 mm, and the proposed design has been verified experimentally. The selected frequency bands are centred at 2.313, 2.396, and 2.478 GHz, and they have −10 dB impedance bandwidths of 2.14, 2.50, and 2.42%, respectively. The first frequency band exhibits right‐hand circular polarisation with a 3 dB axial ratio bandwidth of 0.85%. The second frequency band exhibits linear polarisation, whereas the third frequency band exhibits left‐hand circular polarisation with a 3 dB axial ratio bandwidth of 0.81%.