A Truncated Waveguide Fed by a Microstrip as a Multi-Band WLAN Antenna
Keywords:
Microstrip, waveguide antennas, WLAN antennasAbstract
This paper presents a small truncated waveguide fed by a microstrip line through a transverse coupling slot for multi-band WLAN applications. The analysis of the presented antenna has been performed by replacing the feeding microstrip line with its equivalent Magnetic-Wall Waveguide (MWW) model and using an in-house Method of Moments (MoM) to analyze the structure. The use of entire-domain basis functions both on the slot and on the truncated waveguide apertures allows to obtain a very efficient analysis by exploiting the waveguide modes orthogonality. The proposed radiating element allows to obtain a high radiated power, with a very low cross-polar component in the radiated field, with a -10 dB bandwidth that covers the required frequencies for multi-band WLAN applications (5.2/5.4/5.8 GHz)
Downloads
References
S. W. Su, “High-gain dual-loop antennas for MIMO access points in the 2.4/5.2/5.8 GHz bands,” IEEE Transactions on Antennas and Propagation, vol. 58, no.7, pp. 2412-2419, 2010.
J. H. Yoon and Y. C. Lee, “Modified bow-tie slot antenna for the 2.4/5.2/5.8 GHz WLAN bands with a rectangular tuning stub,” Microw. Opt. Technol. Lett., vol. 53, RT no. 1, pp. 126-130, 2011.
G. A. Casula, 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, pp. 15-26, 2013.
P. Wang, G. J. Wen, and Y. Huang, “Compact CPW-fed planar monopole antenna with tripleband operation for WLAN/WiMAX applications,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 27, no. 8, pp. 691-696, August 2012.
Y. Li, W. Li and W. Yu, “A switchable UWB slot antenna using SIS-HSIR and SIS-SIR for multi mode wireless communications applications,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 27, no. 4, pp. 340-351, April 2012.
M. D. Pozar, “Microstrip antennas: the analysis and design of microstrip antennas and arrays,” IEEE Press, New York, 1995.
M. Himdi, J. P. Daniel and C. Terret, “Analysis of aperture-coupled microstrip antenna using cavity method,” Electronics Letters, pp. 391-392, 1983.
G. Di Massa, G. E. Bencivenni, G. Campaniello and G. Mazzarella, “Hole-coupled patch antennas,” IEEE Antennas and Propagation Society, AP-S International Symposium, vol. 4, pp. 2082-2085, 1995.
G. M. Zhang, J. S. Hong, B. Z. Wang, Q. Y. Qin, B. He and D. M. Wan, “A novel planar monopole antenna with an H-shaped ground plane for dualband WLAN applications,” Journal of Electromagnetic Waves and Applications, vol. 21, no. 15, pp. 2229-2239, 2007.
F. J. Wang and J. S. Zhang, “Wideband printed dipole antenna for multiple wireless services,” Journal of Electromagnetic Waves and Applications, vol. 21, no. 11, pp. 1469-1477, 2007.
Y. L. Chen, C. L. Ruan and L. Peng, “A novel ultra-wideband bow-tie slot antenna in wireless communication systems,” Progress In Electromagnetics Research Letters, vol. 1, pp. 101- 108, 2008.
G. Montisci, G. Mazzarella and G. A. Casula, “Effective analysis of a waveguide longitudinal slot with cavity,” IEEE Trans. Antennas Propagation, vol. 60, pp. 3104-3110, 2012.
G. A. Casula, G. Mazzarella and G. Montisci, “A truncated waveguide fed by a microstrip as radiating element for high performance automotive anti-collision radars,” International Journal of Antennas and Propagation, 2012.
J. Navarro, “Wide-band, low-profile millimeterwave antenna array,” Microwave and Optical Technology Letters, vol. 34, no. 4, pp. 253-255, 2002.
G. A. Casula, G. Mazzarella and G. Montisci, “Effective analysis of a microstrip slot coupler,” Journal of Electromagnetic Waves and Applications, vol. 18, no. 9, pp. 1203-1217, 2004.
G. A. Casula, G. Mazzarella and G. Montisci, “Design of shaped beam planar arrays of waveguide longitudinal slots,” International Journal of Antennas and Propagation, art. no. 767342, 2013.
S. Costanzo, G. A. Casula, A. Borgia, et al., “Synthesis of slot arrays on integrated waveguides,” IEEE Antennas and Wireless Propagation Letters, vol. 9, pp. 962-965, 2010.
G. A. Casula, G. Mazzarella and G. Montisci, “Design of slot arrays in a waveguide partially filled with a dielectric slab,” Electronics Letters, vol. 42, pp. 730-731, 2006.
J. Zusheng, G. Montisci, G. A. Casula, H. Yang and J. Lu, “Efficient evaluation of the external mutual coupling in dielectric covered waveguide slot arrays,” International Journal of Antennas and Propagation, art. no. 491242, 2012.
G. A. Casula, G. Mazzarella and G. Montisci, “Effect of the feeding t-junctions in the performance of planar waveguide slot arrays,” IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 953-956, 2012.
S. R. Rengarajan, “Compound radiating slot in a broad wall of a rectangular waveguide,” IEEE Transactions on Antennas and Propagation, vol. 37, pp. 1116-1124, 1989.
R. E. Collin, “Antennas and radiowave propagation,” McGraw-Hill, New York, 1986.
I. Wolff, “The waveguide model for the analysis of microstrip discontinuities, numerical technique for microwave and millimeter-wave passive structures,” Itoh T. (ed.), Wiley-Interscience, NewYork, 1989.
K. L. Virga and Y. Rahmat-Samii, “Efficient wideband evaluation of mobile communications antennas using [Z] or [Y] matrix interpolation with the method of moments,” IEEE Transactions on Antennas and Propagation, vol. 47, no. 1, pp. 65- 76, 1999.
S. Mohammad, A. Nezhad and H. R. Hassani, “A novel tri-band e-shaped printed monopole antenna for MIMO application,” IEEE Antennas and Wireless Propagation Letters, vol. 9, pp. 576-579, 2010.
J. Y. Jan and L. C. Tseng, “Small planar monopole antenna with a shorted parasitic inverted-l wire for wireless communications in the 2.4, 5.2, and 5.8 GHz bands,” IEEE Trans. Antenna Propag., vol. 52, no. 7, pp. 1903-1905, 2004.
G. A. Casula, G. Mazzarella and N. Sirena, “Evolutionary design of wide-band parasitic dipole arrays,” IEEE Trans. Antenna Propag., vol. 59, pp. 4094-4102, 2011.
