A Single Feed Circularly Polarized Planar Antenna Array
Rabindra Kumar1, Neha Kumari2, Pradeep Kumar Jain3, Priyanka Mondal4
1Rabindra kumar, Electronics and Communication Engg. Department, National Institute of Technology Patna (Bihar) India.
2Neha kumari, Electronics and Communication Engg. Department, National Institute of Technology Patna, (Bihar) India.
3Pradeep kumar jain, Electronics and Communication Engg. Department, National Institute of Technology Patna, (Bihar) India.
4Priyanka mondal, Electronics and Communication Engg. Department, National Institute of Technology Patna, (Bihar) India.
Manuscript received on November 26, 2019. | Revised Manuscript received on December 15, 2019. | Manuscript published on December 30, 2019. | PP: 657-661 | Volume-9 Issue-2, December, 2019. | Retrieval Number: B2976129219/2020©BEIESP | DOI: 10.35940/ijeat.B2976.129219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: A design of a circularly polarized planar antenna array of elliptical patches is presented. The designed prototype has been verified experimentally. Elliptical patches produce circular polarization by using a single feed only. A corporate feed network with quarter-wave transformers are used for uniform excitation of all the array elements. Primary advantages of the presented antenna array are structural simplicity, good circular polarization characteristics and no side lobes. Here, the design example is given for 2×2 elliptical patches at 2.8 GHz. Similar procedure can be extended for more number of array elements at the desired frequency of operation to cater the need of communication systems where circular polarization is essential.
Keywords: Antenna array, Axial ratio, Circular polarization, Elliptical patch, Microstrip, Single feed.