Abstract
A novel design for compact probe-fed wideband microstrip patch antenna for ultra-wideband (UWB) applications is proposed in this paper. The antenna consists of a folded ramp-shaped feed, trapezoidal patch and shorting pins. By adding two pins at end side of the patch, its size is miniaturized. The measured impedance bandwidth (VSWR \(\le \) 2) of fabricated antenna is more than 130 % from 3.7 to 17.6 GHz. This antenna achieves an acceptable miniaturization and provides an excellent UWB impedance bandwidth with stable radiation patterns. It is shown by simulated results how the bandwidth can be considerably increased by introducing novel feeding method namely, the folded ramp-shaped feed. Likewise, the parametric study is performed to describe the characteristics of the proposed antenna. Moreover, good antenna performances such as radiation patterns, acceptable miniaturization and antenna gains over the operating band have been observed.
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References
Wei, L.-A. (2006). Applications of ultra wideband. Arlington: The University of Texas.
Malekpoor, H., & Jam, S. (2013). Design of a multi-band asymmetric patch antenna for wireless applications. Microwave and Optical Technology Letters, 55, 730–734.
Waterhouse, R. (1995). Small microstrip patch antenna. Electronics Letters, 31, 604–605.
Wang, Y. J., Lee, C. K., & Koh, W. J. (2001). Single-patch and single-layer square microstrip antenna with 67.5 % bandwidth. IEE, Proceedings Microwaves, Antennas and Propagation, 148, 418–422.
Schaubert, D. H., Pozar, D. M., & Adrian, A. (1989). Effect of microstrip antenna substrate thickness and permittivity: Comparison of theories and experiment. IEEE Transactions Antennas and Propagation, 37, 677–682.
Ge, Y., Esselle, K. P., & Bird, T. S. (2006). A compact E-Shaped patch antenna with corrugated wings. IEEE Transactions Antennas and Propagation, 54, 2411–2413.
Tong, K. F., Luk, K. M., Lee, K. F., & Lee, R. Q. (2000). A broad-band U-slot rectangular patch antenna on a microwave substrate. IEEE Transactions Antennas and Propagation, 48, 954–960.
Matin, M. A., Sharif, B. S., & Tsimenidis, C. C. (2007). Probe fed stacked patch antenna for wideband applications. IEEE Transactions Antennas and Propagation, 55, 2385–2388.
Guha, D., & Antar, Y. M. M. (2006). Circular microstrip patch loaded with balanced shorting pins for improved bandwidth. IEEE Antennas Wireless Propagation Letters, 5, 217–219.
Chiu, C. Y., Shum, K. M., Chan, C. H., & Luk, K. M. (2003). Bandwidth enhancement technique for quarter-wave patch antennas. IEEE Antennas Wireless Propagation Letters, 2, 130–132.
Chiu, C. Y., Chan, C. H., & Luk, K. M. (2004). Study of small wideband patch antenna with double shorting walls. IEEE Antennas Wireless Propagation Letters, 3, 230–231.
Chiu, C. Y., Wong, H., & Chan, C. H. (2007). Study of small wideband folded-patch-feed antennas. IET Microwaves Antennas Propagation, 1(2), 501–505.
Naser-Moghadasi, M., Dadgarpour, A., Jolani, F., & Virdee, B. S. (2009). Ultra wideband patch antenna with a novel folded-patch technique. IET Microwaves Antennas and Propagation, 3(1), 164–170.
Malekpoor, H., & Jam, S. (2012). Ultra-wideband shorted patch antennas fed by folded-patch with multi resonances. Progress in Electromagnetics Research B, 44, 309–326.
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Malekpoor, H., Bazrkar, A., Jam, S. et al. Miniaturized Trapezoidal Patch Antenna with Folded Ramp-Shaped Feed for Ultra-Wideband Applications. Wireless Pers Commun 72, 1935–1947 (2013). https://doi.org/10.1007/s11277-013-1114-z
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DOI: https://doi.org/10.1007/s11277-013-1114-z