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Application of the method of moments (MoM) with eigenmode expansion to a waveguide slot array enables fast analysis even though the number of the slots is large [1] because of small analysis scale, that is, the unknowns are sources placed only in the slot apertures. However, the method is applicable typically to slot shapes whose eigenmodes are analytically derivable. The hybrid MoM/FEM [2] was proposed...
A radial line slot antenna (RLSA) with a quasi-elliptical aperture to create an elliptical beam is discussed in this paper. A simple feeding structure consisting of a coaxial feeder and two parasitic pins is designed to produce the feed pattern required for uniform illumination over the aperture. The slot length distribution in the radial direction is designed to be similar to conventional RLSAs for...
In this paper, a design technique of the array with a single-layer feed circuit is proposed by using the combination of a full-wave method of moments (MoM) analysis and an equivalent circuit. A control of input matching is directly imposed and the effects of slot mutual coupling and wall thickness are taken into full account. Firstly, under the explicit condition of input matching, the admittance...
Novel design/fabrication techniques of high gain waveguide arrays are presented for millimeter wave. It focuses upon the realization of wide bandwidth and high efficiency of the large arrays. The reduction of computational load in the design of large arrays is also discussed.
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