In this letter, we present the design and fabrication in metallic 3-D printing of a compact
conformal slotted waveguide antenna array (CSWAA) operating in the Ku-band. The …

The peniotron is a fast-wave vacuum tube that can generate coherent microwave radiation
in the millimeter-wave range. Although it uses a beam of gyrating electrons like other gyro …

This article presents the design and evaluation of an Ka-band low-sidelobe slot array
antenna using gap waveguide technology. The slot array is fed by a single-layer amplitude …

A novel frequency selective surface (FSS) architecture for dichroic mirrors is presented in
this work. The solution employs a full-metal unit cell, which was conceived as the …

A full-metal phased array, based on tri-ridge evanescent-fed choke antenna elements,
providing simultaneous dual-circular polarizations is proposed in this paper. The full-metal …

A new type of beamforming network (BFN) based on three-dimensional (3D) discrete lenses
is introduced and numerically analyzed in this paper as an antenna system capable of …

This paper presents two designs of Orthomode Transducers (OMTs) tailored to the disruptive
additive manufacturing (AM) technology. In particular, in this work we propose guidelines …

This paper introduces a novel approach to designing Frequency Selective Surfaces (FSS)
for dichroic mirrors in Deep Space antennas. Unlike conventional periodic FSS designs, the …

We present here the design and 3D-printing of Conformal Slotted Waveguide Antenna
Arrays (CSWAA) in Ku-band. These solutions are appealing candidates for applications …

This paper presents the design of two hybrid couplers tailored to be 3D-printed. The
topologies refer to the well-established narrow-and top-wall coupler architectures. These …