Abstract
A Two layer hemispherical dielectric resonator antenna (HDRA) fed by a coaxial probe is rigorously analyzed here. The method of moment technique and Green’s function is used to obtain the probe current from which the input impedance of the DRA is calculated. The magnetic frill source model is considered. The piecewise sinusoidal (PWS) expansion mode is used and the results are compared. The Dielectric layers Permittivites and layer thickness between the outer and inner hemisphere are optimized for broadband operation of the coaxial probe fed DRA. Frequency tuning of the antenna structure is demonstrated, which maintains the broadband characteristics. Probe location (centered and offset) and length of the coaxial probe are optimized to obtain better impedance bandwidth and stable radiation pattern. The radiation characteristic of the antenna is also investigated in this research work. Simulations were carried out using HFSS v12.0 and it is observed that better impedance bandwidth and stable radiation pattern are obtained across the frequency range between 4–11 GHz.
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References
Luk KM, Leung KW (eds) (2003) Dielectric resonator antennas. Research Studies Press, Baldock
Long SA, McAllister MW, Shen LC (1983) The resonant cylindrical dielectric cavity antenna. IEEE Trans. Antennas Propagat. 31(5):406412
Kishk AA (2005) Experimental study of broadband embedded dielectric resonator antennas excited by a narrow slot. IEEE Antennas Propag Lett 4:79–81
Kishk AA, Zhou G, Glisson AW (1994) Analysis of dielectric-resonator antennas with emphasis on hemispherical structures. IEEE Antennas Propag Mag 36(2)
Leung KW (2000) Analysis of aperture-coupled hemispherical dielectric resonator antenna with a perpendicular feed. IEEE Trans, Antenna Propagat 48(6)
Wong KL, Chen NC, Chen HT (1993) Analysis of a hemispherical dielectric resonator antenna with an air gap. IEEE Microwave Guided Wave Lett 3(10):355–357
Kishk AA, Ahn B, Kajfez D (1989) Broadband stacked dielectric resonator antennas. Electron Lett 25:1232–1233
Ansoft HFSS 12.0. Ansoft Corporation, Pittsburgh
Leung KW, So KK (2000) Analysis of two layer spherical dielectric resonator. IEEE Microw Guided Wave Lett 10(4):139141
Zhang, Y., Deng, J. Y., Li, M. J., Sun, D., & Guo, L. X. (2019, April). A MIMO dielectric resonator antenna with improved isolation for 5G mm-wave applications. IEEE Antennas and Wireless Propagation Letters, 18(4), 747–751
Acknowledgements
This work was supported in part by Visvesvaraya PHD scheme/DIC/MeitY/ of govt. of India under ESDM/5G communications research scheme with reference number VISPHD-MEITY-779.
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Sahu, G., Pawar, S.S. (2020). Design and Full Wave Green’s Function Analysis of Two Layer Hemispherical DRA. In: Hitendra Sarma, T., Sankar, V., Shaik, R. (eds) Emerging Trends in Electrical, Communications, and Information Technologies. Lecture Notes in Electrical Engineering, vol 569. Springer, Singapore. https://doi.org/10.1007/978-981-13-8942-9_36
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DOI: https://doi.org/10.1007/978-981-13-8942-9_36
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