Analysis of a millimeter‐wave integrated beam‐forming network for quasioptical multibeam antennas

Abstract

An integrated beam‐forming network analysis for multibeam antennas based on an array of dielectric slotted waveguides in millimeter waves is proposed. The advantages of such networks include low losses, high aperture efficiencies, and design flexibility in comparison with traditional quasitopical systems. A new technique for obtaining the main characteristics by solving eigenwave and diffraction problems of the basic structure of the proposed network has been developed. © 1993 John Wiley & Sons, Inc.

One-dimensional dual-polarization beamforming networks based on coupled metal waveguides

“…4 were obtained from solution of the electrodynamic problem. It is of interest to com pare these results with the results obtained with the use of the theory of coupled waves [8]. This theory was effi ciently used in [8][9][10] for the analysis of a periodic structure, which is finite along the 0z axis.…”

“…It is of interest to com pare these results with the results obtained with the use of the theory of coupled waves [8]. This theory was effi ciently used in [8][9][10] for the analysis of a periodic structure, which is finite along the 0z axis. In the sim plest case, when only distributed coupling of adjacent waveguides is considered, the dependence of slowing factor U on parameter αa has the following form:…”

“…1). This structure was proposed in [8]. It is suitable for closed waveguides, such as a metal waveguide.…”

“…For solution of this problem, we will use the theory of coupled waves, as it was made in [8][9][10]. The layout of the structure under study is shown in Fig.…”

“…An alternative approach to formation of BFNs is proposed in [8], where the APD is formed with the use of a system of waveguides with distributed coupling. This BFN can be formed with the help of open trans mission lines and waveguides with surface waves: dielectric waveguides, helix lines, striplines, and slot lines.…”