In this article, we reconsider the subject of spatiotemporal electromagnetic (EM) energy
around the antenna near field from a fundamental perspective and discuss the use of …

The synthesis of frequency-scanned monopulse radiation patterns using an array of two
leaky-wave antennas (LWAs) is demonstrated. The LWA array must be designed with …

A leaky-wave antenna (LWA) is proposed on the basis of an ultrathin spoof surface
plasmonic (SSP) waveguide, which can convert SSP waves into spatial multi-polarized …

We propose the design and testing of a 2-D Fabry-Perot structure based on a multilayer (ML)
slab arrangement fed by a circular array of simple sources. Such a class of planar leaky …

A multifed radially periodic two-dimensional leaky-wave antenna is proposed for the
generation of a directional beam continuously scanning in elevation by changing the …

This article presents the design, fabrication, and testing of a modulated metasurface (MTS)
antenna for monopulse radar tracking at Ka-band. The antenna consists of a circular, thin …

Bull's eye antennas exhibit remarkable directivity considering their low profile, albeit
accompanied by high sidelobes. This undesirable radiation characteristic is tackled here by …

In this paper, the feasibility of utilizing the microwave hologram to realize the high-gain
radiation with polarization agility performance is investigated, and an effective method to …

Recent years have witnessed a growing interest in reconfigurable antenna systems.
Travelling wave antennas (TWAs) and leaky wave antennas (LWAs) are representative …

This letter presents an all-metal three-layer monopulse antenna based on gap waveguide
technology operating in Ka-band.(specifically from 29 to 31 GHz) for direction-finding …