A wideband, single layer reflectarray antenna with cross loop and square ring slot loaded patch elements. Issue 7 (18th March 2019)

• Record Type: Journal Article
• Authors: Veluchamy, Lingasamy; Mohammed, Gulam Nabi Alsath; Krishnasamy, T. Selvan; Jyoti, Rajeev
• Editors: Kulpa, Krzysztof; Weinmann, Frank; Boria, Vicente E.; Martín, Teresa; Burgos, Mateo
• Is Part Of: International journal of microwave and wireless technologies. Volume 11:Issue 7(2019)
• Page Start: 703
• Page End: 710
• Publication Date: 2019-03-18
• Subjects: Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078719000187
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract: This paper presents the design and analysis of a wideband X/Ku and Ku band reflectarray antenna. The proposed unit cell of the reflectarray antenna comprises a patch loaded with two distinct slots, viz. a square ring and a cross loop, printed on a low loss substrate, which is backed by a foam-loaded ground plane. The unit cell element offers a linear and large dynamic reflection phase range, which is achieved by optimizing the shape, location, and geometrical parameters of the two slots loaded on the patch. A 324 element microstrip reflectarray antenna of size 200 × 200 mm 2 is constructed and analyzed for its radiation characteristics by simulation and measurement. The reflectarray offers a 3 dB gain bandwidth of 50.75% with the operating frequency range of 10–16.8 GHz. It offers a peak gain and aperture efficiency of 25.4 dB and 40% at 12.6 GHz, respectively. The cross-polarization level is below −40 dB over the entire operating frequency range.