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@article{196886,
        author = {Nanduri Tejaswini and Kanapala Jayasri and Mettala Maneesha},
        title = {Innovative Design and Comprehensive Analysis of Star Shaped SIW Antenna for Millimeter Wave Applications},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {5279-5287},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=196886},
        abstract = {The need to design small, high-gain and broadband antennas in 5G and radar systems of advanced radar systems is the driving force behind this research. Traditional Substrate Integrated Waveguide (SIW) antennas although efficient and low loss, face fundamental limitations in band and radiation performance at higher frequencies. It is proposed to overcome these issues with a new star-shaped radiating structure, which fits into a SIW cavity. The antenna was designed and tested in CST Microwave Studio and at 28 GHz at the millimeter-wave (mm-wave) band. We carry out parametric studies in order to determine the optimum sizes of the SIW cavity, the shape of the star-slot and the shape of the feed. The results of the simulation demonstrate that the proposed design has a return loss (S 1 1) of approximately -20 dB at 26G, a peak gain of 5.3 dB, a directivity of 40 dBi, and a radiation efficiency of -1.5 dB over the board. The star-shaped is an efficient design that provides a better confinement of fields and the distribution of currents on the surfaces compared to traditional rectangular or circular SIW antennas, which prove to be obviously inferior in the next generation high-frequency communication and sensing systems.},
        keywords = {Substrate Integrated Waveguide (SIW), Millimeter-Wave Antenna, CST Microwave Studio, Star-Shaped Design, 5G Applications, High-Gain Antenna, Return Loss, Radiation Pattern.},
        month = {April},
        }