We propose a general method for designing wideband matching tapers in inhomogeneous media where phase velocity is coupled to the taper impedance profile. Such tapers are used …
N Garcia, J Chisum - Microwave and Optical Technology …, 2021 - Wiley Online Library
In this article we present a method for the rapid design of wideband, high efficiency metamaterial GRIN lenses with rotational symmetry. The method achieves rapid optimization …
Lens-based beam-forming antennas offer a low-power, low-cost alternative to hybrid beamforming antenna arrays. They are ideally suited to millimeter-wave massive MIMO …
DA Connelly, JD Chisum - IEEE Transactions on Microwave …, 2020 - ieeexplore.ieee.org
This article proposes a concept for dynamically reconfigurable distributed microwave circuits by leveraging the abrupt conductivity transition in phase-change materials (PCMs). Metallic …
J Chisum, N Garcia - US Patent 11,181,668, 2021 - Google Patents
A film comprising a first plurality of voids is provided, wherein respective ones of the first plurality of voids have a regular n-gon geometry, and the first plurality of voids are arranged …