A post-wall waveguide-fed parallel plate slot array shown in Fig.1 is one of the attractive candidates for high efficiency and mass producible planar array antennas in millimeter-wave applications [1]-[3]. A unit T-junction model with simplified PEC solid-walls was utilized for highspeed design using the method of moments [1]. Unfortunately, the antenna designed by this model was suffered from ...

We study the reflection of terahertz (THz) radiation at the end of a parallel-plate waveguide (PPWG), due to the impedance mismatch between the propagating transverse-electromagnetic mode and the free-space background. We find that, for a PPWG with uniformly spaced plates, the reflection coefficient at the output face increases as the plate separation decreases, consistent with predictions by e...

Here, we propose a low-profile polarizing technique integrated in parallel plate waveguide (PPW) configuration, compatible with fully metallic geodesic lens antennas. The shape of the antenna is chosen to resemble operation Luneburg lens. fed 11 ports 10° separation producing switchable beams an angular range <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www...

A compact planar beamformer using multiple shaped continuous parallel-plate waveguide delay lenses is proposed in this letter. The original design, based on a single-shaped lens, had demonstrated excellent scanning properties over the portion of $K_{a}$...

The flanged parallel-plate waveguide is analysed based on the method of Kobayashi potential (KP) using Fourier function space. presentation free from intricate mathematics. Standard integral identities are used for problem formulation, without direct use Weber-Schafheitlin (WS) integrals. space exploited construction governing linear equations instead Jacobi polynomials. A simple strategy sugge...