Slotted circular patch MIMO antennas for multiband sand UWB applications
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Author |
Muvvala Kalpana and R. Ramana Reddy
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e-ISSN |
1819-6608 |
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On Pages
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1484-1491
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Volume No. |
19
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Issue No. |
24
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Issue Date |
January 25, 2025
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DOI |
https://doi.org/10.59018/122482
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Keywords |
circular patch, slots, MIMO, UWB, DGS, multiband.
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Abstract
In this paper, a defective ground structure (DGS) based 2-port and 4-port circular patch antennas with rectangular slots (CPRS) is presented. The proposed CPRS MIMO antenna with quadrilateral DGS delivers ultra-wide bandwidth (UWB) and multiband frequencies. The 40mm x 40mm x 1.6mm CPRS MIMO antenna operates in the frequency band of 4 GHz to 20 GHz. The 4-port CPRS MIMO antenna uses three frequency bands for operation with a bandwidth of 360MHz, 1.21GHz, and 1.15GHz. With the introduction of DGS, the bandwidth increases to 3.44 GHz, 2.01 GHz, and 5.73 GHz, and peak gain is increased to 6.9 db. Other performance characteristics observed are ECC < 0.04, DG > 9.99, TARC is -27.5 dB, and CCL < 0.275 bits/Hz/sec. Simulations are performed in ANSYS HFSS EM solver.
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