By Hisamatsu Nakano
Presents fresh development in low-profile ordinary and metamaterial antennas
This booklet provides the total diversity of low-profile antennas that use novel components and benefit from new recommendations in antenna implementation, together with metamaterials. quite often shaped by way of developing lattices of easy parts, metamaterials own electromagnetic houses now not present in evidently happening fabrics, and exhibit nice promise in a couple of low-profile antenna implementations. Introductory chapters outline quite a few normal and metamaterial-based antennas and supply the basics of writing machine courses in keeping with the strategy of moments (MoM) and the finite-difference time-domain approach (FDTDM). Chapters then speak about low-profile average antennas categorised into base station antennas, cellular card antennas, beam-forming antennas, and satellite-satellite and earth-satellite communications antennas. ultimate chapters examine houses of low-profile metamaterial-based antennas, revealing the strengths and boundaries of the metamaterial-based immediately line antenna (metaline antenna), metamaterial-based loop antenna (metaloop), open metaloop antenna, the consequences of counter dual-band CP radiation, and more.
- Offers finished assurance of either metamaterials and common fabrics for low-profile antennas
- Written by means of an internationally-recognized professional within the box of low-profile antennas
- Depicts genuine high-performance low-profile antennas for the antenna engineer
- Draws on classroom-tested fabric in graduate classes and brief classes during the last 20 years
Low-Profile usual and Metamaterial Antennas is a must have reference publication for complicated undergraduate and graduate point scholars in addition to antenna engineers drawn to low-profile antenna layout theory.
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Additional resources for Low-profile Natural and Metamaterial Antennas: Analysis Methods and Applications
Hirose, T. Suzuki, S. R. G. Alexopoulos, Numerical analyses of printed line antennas. IEE Proc. Microw. Antennas Propag. H, vol. 136, no. 2, pp. 98–104, 1989. 18. H. Nakano, A numerical approach to line antennas printed on dielectric materials. Comput. Phys. , vol. 68, pp. 441–450, 1991. 19. H. Nakano, T. Kawano, Y. Kozono, and J. Yamauchi, A fast MoM calculation technique using sinusoidal basis and testing functions for a wire on a dielectric substrate and its application to mean der loop and grid array antennas.
H. Nakano, K. Hirose, M. Yamazaki, and J. Yamauchi, Square spiral antenna on dielectric half-space: analysis using an electric ﬁeld equation formulated by a ﬁnite-difference techniques. IEE Proc. Microw. , vol. 145, no. 1, pp. 70–74, 1998. 23. T. Uno, Private communication, January 2015. 24. K. Fujita, Private communication, January 2015.
65) leads to d2 Φ s ds2 β2Φ s β2 Φ s Asμ s jωεE is s (2:66) The solution of Eq. 4 Integral Equation for an Arbitrarily Shaped Wire Antenna in Free Space 21 where C and D are constants, and Z 0 μ=ε. Since Φ 0 0 in Eq. 63), the constant C vanishes. After some manipulation, Eq. 67) becomes I s π1 π2 Dsinβ s π 3 ds j s i E ξ sinβ s Z0 ∫0 ξ ^ ∫ La ξ dξ ∫ La I s G 0; s 0 _ s cosβsds (2:68) where ^ ∫0 G ξ; s s π3 (2:69) s ∫0 dξ _ s cosβ s dξ @G ξ; s @ξ ξ dξ (2:70) @G ξ; s @s ^ S π2 _ G s; s s ^ π1 s ξ _ cosβ s ξ dξ (2:71) The ﬁrst term on the right side of Eq.