Gain and bandwidth enhancements of sequential‐fed circularly polarized patch antenna array using multiple parasitic elements. Issue 9 (10th June 2020)

• Record Type: Journal Article
• Authors: Tran, Huy Hung; Park, Hyun Chang
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 30:Issue 9(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-06-10
• Subjects: circular polarization -- parasitic element -- patch -- sequential phase feed -- wideband; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.22319
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: This paper presents a circularly polarized (CP) antenna array with wideband operation and high gain characteristics. The single array element is composed of a slotted CP patch and parasitic elements. It has been found that besides improving the operating bandwidth (BW), properly choosing a number of parasitic elements can also contribute to a significant increase in the antenna gain over the entire operating band. For further boost in the performance, multiple array elements are arranged in 2 × 2 configuration and fed by a sequential‐phase feeding network. In comparison with the related works in the literature, the proposed design shows approximately 3‐dB higher gain. The design concept has been validated by experiments. The fabricated array has a measured operating BW of 28% (4.6‐6.1 GHz) and a peak broadside gain of 15.8 dBic.