Design of single-fed spiral-shaped slotted planar antenna for GPS L2 and L5 applications

Niraj Agrawal; Anil Kumar Gautam; Karumudi Rambabu

Design of single-fed spiral-shaped slotted planar antenna for GPS L2 and L5 applications

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Author(s): Niraj Agrawal¹ ; Anil Kumar Gautam² ; Karumudi Rambabu³
- Affiliations: 1: Department of Electronics & Communication Engineering , School of ICT, Gautam Buddha University , Greater Noida, Uttar Pradesh , India ;
  2: Department of Electronics & Communication Engineering , G B Pant Institute of Engineering & Technology , Pauri Garhwal, Uttarakhand , India ;
  3: Department of Electrical & Computer Engineering , University of Alberta , Edmonton, Alberta , Canada
Source: Volume 14, Issue 15, 16 December 2020, p. 1947 – 1951
DOI: 10.1049/iet-map.2019.1153 , Print ISSN 1751-8725, Online ISSN 1751-8733

Received 24/12/2019, Accepted 14/08/2020, Revised 11/07/2020, Published 02/09/2020

An innovative design of a right hand circularly polarised (RHCP) antenna at two different resonant frequencies that is GPS (global positioning system) L2 and L5 has been proposed in this study. The proposed design comprised the concept of slotted radiator excited with a coaxial probe. Two asymmetric spiral slots were incorporated in a rectangular radiator to realise size miniaturisation, the axial ratio bandwidth and beamwidth at L2 (1.22760 GHz) and L5 (1.17645 GHz) frequencies of GPS applications. The proposed design has accomplished an excellent axial ratio bandwidth and beamwidth at both GPS L2 and L5 bands. The size of the designed antenna has been $59.64 × 59.64 × 1.6 mm 3$ , which makes it attractive for the consumer market. Measured and simulated results achieved that the antenna conquered RHCP radiation at two separate operating bands, i.e. GPS L2 and L5.

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Design of single-fed spiral-shaped slotted planar antenna for GPS L2 and L5 applications

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