## Figure 9 Comparisons of the k wave vectors given by the FDTD analysis with the k wave vectors obtained by the analytical plane-wave method. The FDTD analysis in the reciprocal space provides the propagative modes excited in the finite-size PBG structure the structure. Moreover, this method is ve
Design of Microwave Filters by Sine-Plane Approach
β Scribed by Pang, K.K.
- Book ID
- 119819411
- Publisher
- IEEE
- Year
- 1973
- Tongue
- English
- Weight
- 529 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0018-9480
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## Abstract The traditional microstrip or coplanarβwaveguide filter design restricts filter structure to regular shapes so that the results may not be optimal. In this paper, we present a novel design approach that allows arbitrary planar structures. This approach combines two powerful and flexible
Figure 6 Measured axial ratio in the broadside direction against frequency for the proposed antenna in Figure 5 with left-hand CP Ε½ . radiation feed at point A ; h s 1.6 mm, s 4.4, L s 30 mm, r Ε½ . Ε½ . Ε½ . S s 6.4 mm 4.7 β , 5.0 mm 0 β , d s 11.2 mm 4.7 β , 12.2 mm Ε½ . 0 β TABLE 2 Characteristics of