A compact and broadband uniplanar Microstrip Antenna (MSA) is proposed for endfire radiation at sub-6 GHz 5G frequency band. The proposed antenna consists of a semi-elliptical radiating element and a U-shaped ground plane. The use of semi-elliptical radiating element results in a wide impedance bandwidth (BW) and compact size. The U-shaped ground plane further improves the bandwidth due to the increased coupling from radiating element to ground. An endfire radiation pattern, 3.8 dBi peak gain, and 49.8% bandwidth (BW) are achieved while a compact size of 0.47λ0×0.13λ0×0.008λ0 (where λ0 is the wavelength in free space at the center frequency) is kept. A parametric study based on CST-MWS simulations is also presented together with an equivalent circuit analysis to see the effects of various dimensional parameters of the uniplanar MSA with an elliptical radiating element. To validate the simulation results, prototype of the proposed antenna was fabricated and tested. The measured results are in good agreement with the simulated ones.
2. Anguera, J., J. P. Daniel, C. Borja, J. Mumbru, C. Puente, T. Leduc, N. Laeveren, and P. Van Roy, "Metallized foams for fractal-shaped microstrip antennas," IEEE Antennas and Propagation Magazine, Vol. 50, No. 6, 20-38, Dec. 2008.
doi:10.1109/MAP.2008.4772718
3. Anguera, J., A. Andujar, S. Benavente, J. Jayasinghe, and S. Kahng, "High-directivity microstrip antenna with mandelbrot fractal boundary," IET Microwaves, Antennas & Propagation, Vol. 12, No. 4, 569-575, Mar. 28, 2018.
doi:10.1049/iet-map.2017.0649
4. Anguera, J., A. Andujar, and J. Jayasinghe, "High directivity microstrip patch antennas perturbing TModd-0 modes," IEEE Antennas Wireless Propag. Lett., Vol. 19, No. 1, 39-43, 2020.
doi:10.1109/LAWP.2019.2952260
5. Lu, W.-J., Y.-M. Bo, and H.-B. Zhu, "Novel planar dual-band balanced antipodal slot-dipole composite antenna with reduced ground plane effect," Int. J. RF and Microwave Comp. Aid. Eng., Vol. 22, 319-328, 2012.
doi:10.1002/mmce.20600
6. Xu, J., W.-J. Lu, X.-T. Wu, Y.-M. Bo, L. Zhu, and H.-B. Zhu, "Novel offset-fed dual-band aperture-dipole composite antenna: Operating principle and design approach," Int. J. RF and Microwave Comp. Aid. Eng., Vol. 25, 382-393, 2015.
doi:10.1002/mmce.20872
7. Alhalabi, R. A. and G. M. Rebeiz, "High-gain Yagi-Uda antennas for millimeter-wave switched-beam systems," IEEE Trans. Antennas Propag., Vol. 57, No. 11, 3672-3676, Nov. 2009.
doi:10.1109/TAP.2009.2026666
8. Liu, J. and Q. Xue, "Microstrip magnetic dipole Yagi array antenna with endfire radiation and vertical polarization," IEEE Trans. Antennas Propag., Vol. 61, No. 3, 1140-1147, Mar. 2013.
doi:10.1109/TAP.2012.2230239
9. Kramer, O., T. Djera , and K. Wu, "Vertically multilayer-stacked Yagi antenna with single and dual polarizations," IEEE Trans. Antennas Propag., Vol. 58, No. 4, 1022-1030, Apr. 2010.
doi:10.1109/TAP.2010.2041155
10. Hachi, A., H. Lebbar, and M. Himdi, "3D printed large bandwidth new Yagi-Uda antenna," Progress In Electromagnetics Research Letters, Vol. 88, 129-135, 2020.
doi:10.2528/PIERL19101303
11. Qian, Y., W. R. Deal, N. Kaneda, and T. Itoh, "Microstrip-fed Quasi-Yagi antenna with broadband characteristics," Electron. Lett., Vol. 34, No. 23, 2194-2196, Nov. 1998.
doi:10.1049/el:19981583
12. Kaneda, N., W. R. Deal, Y. Qian, R. Waterhouse, and T. Itoh, "A broadband planar Quasi-Yagi antenna," IEEE Trans. Antennas Propag., Vol. 50, No. 8, 1158-1160, Aug. 2002.
doi:10.1109/TAP.2002.801299
13. Zheng, G., A. A. Kishk, A. W. Glisson, and A. B. Yakovlev, "Simplified feed for modified printed Yagi antenna," Electron. Lett., Vol. 40, No. 8, 464-466, Apr. 2004.
doi:10.1049/el:20040348
14. Shiroma, G. S. and W. A. Shiroma, "A two-element L-band Quasi-Yagi antenna array with omnidirectional coverage," IEEE Trans. Antennas Propag., Vol. 55, No. 12, 3713-3716, Dec. 2007.
doi:10.1109/TAP.2007.910516
15. Kan, H. K., R. B. Waterhouse, A. M. Abbosh, and M. E. Bialkowski, "Simple broadband planar CPW-fed Quasi-Yagi antenna," IEEE Antennas Wireless Propag. Lett., Vol. 6, 18-20, 2007.
doi:10.1109/LAWP.2006.890751
16. Lin, S., G.-L. Huang, R.-N. Cai, and J.-X. Wang, "Novel printed Yagi-Uda antenna with highgain and broadband," Progress In Electromagnetics Research Letters, Vol. 20, 107-117, 2011.
doi:10.2528/PIERL10102804
17. Estrada, J. G., C. I. Paez, and A. Fajardo, "A new broadband quasi Yagi-Uda antenna with an EBG-truncated ground plane," IEEE Antennas Wireless Propag. Lett., Vol. 12, 1392-1395, 2013.
doi:10.1109/LAWP.2013.2286758
18. Yeo, J. and J.-I. Lee, "Bandwidth enhancement of double-dipole Quasi-Yagi antenna using stepped slotline structure," IEEE Antennas Wireless Propag. Lett., Vol. 15, 694-697, 2016.
doi:10.1109/LAWP.2015.2469677
19. Farran, M., et al., "Compact Quasi-Yagi antenna with folded dipole fed by tapered integrated balun," Electron. Lett., Vol. 52, No. 10, 789-790, May 2016.
doi:10.1049/el.2016.0528
20. Luo, Y., Q. X. Chu, and J. Bornemann, "A differential-fed Yagi-Uda antenna with enhanced bandwidth via addition of parasitic resonator," Microw. Opt. Technol. Lett., Vol. 59, No. 1, 156-159, Jan. 2017.
doi:10.1002/mop.30253
21. Chu, H., Y.-X. Guo, H. Wong, and X. Shi, "Wideband self-complementary Quasi-Yagi antenna for millimeter-wave systems," IEEE Antennas Wireless Propag. Lett., Vol. 10, 322-325, 2011.
doi:10.1109/LAWP.2011.2142171
22. Liang, Z., J. Liu, Y. Zhang, and Y. Long, "A novel microstrip quasi Yagi array antenna with annular sector directors," IEEE Trans. Antennas Propag., Vol. 63, No. 10, 4524-4529, Oct. 2015.
doi:10.1109/TAP.2015.2456875
23. Huang, E. and T. Chiu, "Printed Yagi antenna with multiple reflectors," Electron. Lett., Vol. 40, No. 19, 1165-1166, Sep. 2004.
doi:10.1049/el:20046087
24. Wu, J., Z. Zhao, Z. Nie, and Q.-H. Liu, "Bandwidth enhancement of a planar printed Quasi-Yagi antenna with size reduction," IEEE Trans. Antennas Propag., Vol. 62, No. 1, 463-467, Jan. 2014.
doi:10.1109/TAP.2013.2287286
25. Luo, Y. and Q.-X. Chu, "A Yagi-Uda antenna with a stepped-width reflector shorter than the driven element," IEEE Antennas Wireless Propag. Lett., Vol. 15, 564-567, 2016.
doi:10.1109/LAWP.2015.2458351
26. Ding, K., C. Gao, B. Zhang, Y. Wu, and D. Qu, "A compact printed unidirectional broadband antenna with parasitic patch," IEEE Antennas Wireless Propag. Lett., Vol. 16, 2341-2344, 2017.
doi:10.1109/LAWP.2017.2718000
27. Jehangir, S. S. and M. S. Sharawi, "A miniaturized UWB biplanar Yagi like MIMO antenna system," IEEE Antennas Wireless Propag. Lett., Vol. 16, 2320-2323, 2017.
doi:10.1109/LAWP.2017.2716963
28. Kumar, H. and G. Kumar, "A broadband planar modified Quasi-Yagi using log-periodic antenna," Progress In Electromagnetics Research Letters, Vol. 73, 23-30, 2018.
doi:10.2528/PIERL17102005
29. Chopra, R. and G. Kumar, "Uniplanar microstrip antenna for endfire radiation," IEEE Trans. Antennas Propag., Vol. 67, No. 5, 3422-3426, May 2019.
doi:10.1109/TAP.2019.2900334
30. Solanki, R., "Compact and broadband uniplanar Yagi MSA for sub-6 GHz 5G frequency band," 2021 15th European Conference on Antennas and Propagation (EuCAP), 1-5, 2021.
31. Gheethan, A. A. and D. E. Anagnostou, "The design and optimization of planar LPDAs," PIERS Online, Vol. 4, No. 8, 811-814, 2008.
doi:10.2529/PIERS071220141433
32. Anagnostou, D. E., J. Papapolymerou, M. M. Tentzeris, and C. G. Christodoulou, "A printed log-periodic koch-dipole array (LPKDA)," IEEE Antennas Wireless Propag. Lett., Vol. 7, 456-460, 2008.
doi:10.1109/LAWP.2008.2001765
33. Song, L., Y. Nie, and J. Wang, "A novel meander line microstrip log-periodic dipole antenna for dual-polarized radar systems," Progress In Electromagnetics Research Letters, Vol. 56, 123-128, 2015.
doi:10.2528/PIERL15081403
34. Jardon-Aguilar, H., J. A. Tirado-Mendez, R. Flores-Leal, and R. Linares-Miranda, "Reduced log-periodic dipole antenna using a cylindrical-hat cover," IET Microwaves, Antennas & Propagation, Vol. 5, No. 14, 1697-1702, Nov. 18, 2011.
doi:10.1049/iet-map.2011.0077
35. Casula, G. A., P. Maxia, G. Mazzarella, and G. Montisci, "Design of a printed log-periodic dipole array for ultra-wideband applications," Progress In Electromagnetics Research C, Vol. 38, 15-26, 2013.
doi:10.2528/PIERC13012704
36. Lei, F., Z. Li, Q.-X. Guo, H. Zhang, X. Zhang, J. Wang, Gu. Liu, J.-H. Wang, and Y. L. Yang, "A monolayer multi-octave bandwidth log-periodic microstrip antenna," Progress In Electromagnetics Research Letters, Vol. 41, 97-104, 2013.
doi:10.2528/PIERL13052105
37. Zhai, G. H., Y. Cheng, D. Min, S. Z. Zhu, and J. J. Gao, "Wideband simplified feed for printed log-periodic dipole array antenna," Electron. Lett., Vol. 49, No. 23, 1430-1432, Nov. 2013.
doi:10.1049/el.2013.2184
38. Mirzapour, M. I., S. M. J. Razavi, and S. H. M. Armaki, "Ultra-wideband planar LPDA antenna with mode converter balun," Electron. Lett., Vol. 50, No. 12, 848-850, Jun. 5, 2014.
doi:10.1049/el.2013.4027
39. Qu, S. W., J. L. Li, Q. Xue, and C. H. Chan, "Wideband periodic endfire antenna with bowtie dipoles," IEEE Antennas Wireless Propag. Lett., Vol. 7, 314-317, 2008.
40. Gao, X., Z. Shen, and C. Hua, "Conformal VHF log-periodic balloon antenna," IEEE Trans. Antennas Propag., Vol. 63, No. 6, 2756-2761, Jun. 2015.
doi:10.1109/TAP.2015.2414478
41. Kyei, D., U. Sim, and Y. B. Jung, "Compact log-periodic dipole array antenna with bandwidth-enhancement techniques for the low frequency band," IET Microwaves, Antennas & Propagation, Vol. 11, No. 5, 711-717, Apr. 2017.
doi:10.1049/iet-map.2016.0611
42. Zhai, G., et al., "Gain-enhanced planar log-periodic dipole array antenna using nonresonant metamaterial," IEEE Trans. Antennas Propag., Vol. 67, No. 9, 6193-6198, Sept. 2019.
doi:10.1109/TAP.2019.2924111
Submit
