Analysis of Octagonal Patch K-Band MIMO Antenna with Via for Satellite Communication

Author(s)	Ms. Merlyn Sylvester, Dr. Alok Kumar Rastogi, Dr. Pragyesh Kumar Agrawal, Dr. Gazala Pravin
Country	India
Abstract	The K-Band frequency, operating at 22.24 GHz, is widely used in satellite communication, suitable for wireless point-to-point microwave communication. The band yields an optimal small and compact antenna design for Law enforcement RADAR systems, vehicular speed detection and collision avoidance systems and satellite communication. This research focuses on the development of an octagonal patch microstrip antenna with vias and slot suitable to work for satellite communication. The proposed MIMO antenna is designed in ANSYS HFSS using RT Duroid 5880 material that has relative permittivity 2.2 and loss tangent 0.0009 and analyzed with excellent performance in the frequency range between 14GHz to 28GHz (K-band). The simulated measurements demonstrate the return loss of -43.75 dB at 19.6GHz, narrow bandwidth of 1.5 GHz and gain above 6 dBi. The antenna demonstrated an omnidirectional radiation pattern and circular polarization, which is particularly advantageous for satellite communications, ensuring stable signal reception. The results clearly explain that the proposed antenna has favorable characteristics for satellite applications.
Keywords	MIMO, K-Band, Satellite communication, vias, slot
Field	Engineering
Published In	Volume 7, Issue 3, May-June 2025
Published On	2025-06-13
DOI	https://doi.org/10.36948/ijfmr.2025.v07i03.47907
Short DOI	https://doi.org/g9qp8f

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