Book contents
- Frontmatter
- Contents
- Preface
- Acknowledgements
- Abbreviations
- 1Introduction
- 2FDTD method for periodic structure analysis
- 3EBG characterizations and classifications
- 4Designs and optimizations of EBG structures
- 5Patch antennas with EBG structures
- 6Low profile wire antennas on EBG ground plane
- 7Surface wave antennas
- Appendix: EBG literature review
- Index
- References
7 - Surface wave antennas
Published online by Cambridge University Press: 06 July 2010
Book contents
- Frontmatter
- Contents
- Preface
- Acknowledgements
- Abbreviations
- 1Introduction
- 2FDTD method for periodic structure analysis
- 3EBG characterizations and classifications
- 4Designs and optimizations of EBG structures
- 5Patch antennas with EBG structures
- 6Low profile wire antennas on EBG ground plane
- 7Surface wave antennas
- Appendix: EBG literature review
- Index
- References
Summary
The concept of surface wave antennas (SWA) was initiated in the 1950s [1–2] and numerous theoretical and experimental investigations have been reported in the literature [3–10]. To support the propagation of surface waves, a commonly used structure in SWA designs is a corrugated metal surface. However, the corrugated structure is thick, heavy, and costly, which may limit the applications of surface wave antennas in wireless communication systems.
In this chapter, novel surface wave antennas are presented. Compared to traditional SWA designs, surface waves are now guided along a thin grounded slab loaded with periodic patches, resulting in a low profile conformal geometry. In contrast to the previous wire-EBG antennas or patch antennas that radiate to the broadside direction, the proposed SWA achieve a monopole-like radiation pattern with a null in the broadside direction. The low profile SWA is more attractive than a traditional monopole antenna that is a quarter-wavelength high.
A grounded slab loaded with periodic patches
Comparison of two artificial ground planes
We start with analyzing a complex artificial ground plane, which will be subsequently used in surface wave antenna designs. Figure 7.1 shows two artificial surfaces: a mushroom-like EBG surface and a grounded dielectric slab loaded with periodic patches. In the latter structure vertical vias are removed, which results in different surface wave properties in the two ground planes.
To compare the electromagnetic properties of these two structures, the finite difference time domain (FDTD) method is used to simulate their performance [11–12].
Information
- Type
- Chapter
- Information
- Electromagnetic Band Gap Structures in Antenna Engineering , pp. 203 - 237Publisher: Cambridge University PressPrint publication year: 2008
References
Francis J. Zucker, “Surface-wave antennas,” in Antenna Engineering Handbook, 3rd edn., , McGraw-Hill Inc., 1993.Google Scholar
and , “Millimeter-wave antennas,” in Antenna Handbook, Theory, Applications, and Design, and , Van Nostrand Reinhold Company Inc., New York, 1988.Google Scholar
, “Spherical surface wave antennas,” IRE Trans. Antennas Propagat., vol. 4 , no. 3, 422–8, 1956.CrossRefGoogle Scholar
and , “Scanning surface wave antennas – oblique surface waves over a corrugated conductor,” IRE Trans. Antennas Propagat., vol. 6 , no. 4, 370–6, 1958.CrossRefGoogle Scholar
, “Radiation from a tapered surface wave antenna,” IRE Trans. Antennas Propagat., vol. 8, 577–86, 1960.CrossRefGoogle Scholar
and , “Experimental resolution of surface wave antenna radiation into feed and terminal patterns,” IEEE Trans. Antennas Propogat., vol. 18, 420–2, 1970.CrossRefGoogle Scholar
and , “Radiation by a probe through a substrate,” IEEE Trans. Antennas Propagat., vol. 34, 1080–91, 1993.Google Scholar
, , and , “Novel surface wave antennas,” IEE Proc. Microw. Antennas, Propagat., vol. 143 , no. 1, 1–6, 1996.CrossRefGoogle Scholar
, , and , “Analysis of corrugated surface wave antenna using hybrid MOM/UTD technique,” Electronic Lett., vol. 35 , no. 5, 353–4, 1999.CrossRefGoogle Scholar
, , , and , “General formulas for 2-D leaky-wave antennas,” IEEE Trans. Antennas Propogat., vol. 53 , no. 11, 3525–33, 2005.CrossRefGoogle Scholar
, , and , “Bandwidth determination for soft and hard ground planes by spectral Finite Difference Time Domain: a unified approach in visible and surface wave regions,” IEEE Trans. Antennas Propagat., vol. 53 , no. 1, 18–28, 2005.CrossRefGoogle Scholar
, , , and , “A simple and efficient Finite Difference Time Domain/Periodic Boundary Condition algorithm for periodic structure analysis,” Radio Sci., vol. 42 , no. 4, RS4004, 2007.CrossRefGoogle Scholar
and , Electromagnetic Theory for Microwaves and Optoelectronics, 2nd edn., Publishing House of Electronics Industry, 2001.Google Scholar
, , and , “A low profile surface wave antenna equivalent to a vertical monopole antenna,” 2004 IEEE APS Int. Symp. Dig., vol. 2, pp. 1939–42, Monterey, CA, June 20–26, 2004.Google Scholar
, , and , “A novel surface wave antenna design using a thin periodically loaded ground plane,” Microwave Optical Tech. Lett., vol. 47 , no. 3, 240–5, 2005.CrossRefGoogle Scholar
, “Circularly polarized conical patterns from circular microstrip antennas,” IEEE Trans. Antennas Propagat., vol. 32, 991–4, 1984.CrossRefGoogle Scholar
and , “Patch antenna equivalent to simple monopole,” Electronic Lett., vol. 33 , no. 9, 727–9, 1999.CrossRefGoogle Scholar
, , and , “A low profile surface wave antenna for wireless communications,” IET Proceedings Microwaves Antennas & Propagation, vol. 1, no. 1, pp. 261–6, February 2007.CrossRefGoogle Scholar
, , and , “A dual band surface wave antenna with a monopole like pattern,” 2006 IEEE APS Int. Symp. Dig., vol. 5, pp. 4281–4, July 2006.Google Scholar
and , “Dual-band planar antennas with monopole radiation patterns,” 2006 IEEE APS Int. Symp., pp. 469, July 2006.Google Scholar
, , and , “A low profile dual band surface wave antenna with a monopole like pattern,” IEEE Trans. Antennas Propagat., vol. 55, no. 12, 3404–12, December 2007.CrossRefGoogle Scholar
HFSS: High Frequency Structure Simulator Based on Finite Element Method, 2004, v. 9.2.1, Ansoft Corporation.
Accessibility standard: Unknown
Why this information is here
This section outlines the accessibility features of this content - including support for screen readers, full keyboard navigation and high-contrast display options. This may not be relevant for you.Accessibility Information
Accessibility compliance for the PDF of this chapter is currently unknown and may be updated in the future.