Luigi Boccia - IEEE Xplore Author Profile

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This article introduces a two-port microwave sensor designed for dielectric spectroscopy in microfluidic applications. The sensor integrates resonant elements within a microstrip transmission line to facilitate multiband analysis. It features distinct resonance frequencies at 7.8 and 15.6 GHz along with capabilities for low-frequency measurements showcasing versatility across a broad frequency ran...Show More
This paper presents the design and development of a Vector Modulator type phase shifter operating in the Ka-band. This system is based on an I/Q hybrid transformer that feeds a vector modulator, which adjusts the amplitude of quadrature differential signals. A specially designed passive attenuator enhances attenuation depth, phase accuracy, and impedance matching. A 55nm CMOS circuit was simulated...Show More
A low-profile dual-polarized magneto electric (ME) dipole antenna configuration implemented on standard multilayer PCB technology is here reported. The proposed radiator is conceived for dual-polarized 28 GHz 5G phased array applications. Wideband operation is achieved by applying several low-frequency techniques which allow to fulfil the 5G requirements without increasing the dielectric core thic...Show More
This letter introduces a new design for a 2-D electronically steerable parasitic array radiator based on a 3 × 3 microstrip patch array. The proposed configuration enables conical beam steering by using nine radiating elements, one active U-slot patch antenna, and eight parasitic elements. To validate the proposed design, a prototype was manufactured and experimentally validated. The reported resu...Show More
This paper presents a tile-based approach to the design of satellite communications (SatCom) user terminals. The proposed approach is based on the use of small, modular tiles that can be easily assembled to create a large, highperformance antenna. The tiles are equipped with integrated beamforming with output in the digital domain. Thanks to this approach, it is possible to use such titles as a bu...Show More
Two different designs of electronically steerable parasitic array radiators (ESPAR) for low-cost K-band phased array antenna design are presented. The proposed solutions are suitable for 1-D scanning with linearly and circularly polarized arrays. In contrast to the other solutions, that implement the beam scanning operations by using dielectric resonator antennas (DRAs) or cavity-backed slot anten...Show More
This paper presents a microstrip gap sensor designed for dielectric spectroscopy in microfluidic applications. The sensor enables the characterization of fluid properties based on the electrical permittivity using microwave measurements. Unlike conventional techniques, the sensor operates in a broadband manner and relies solely on the transmission coefficient, eliminating the need for de-embedding...Show More
In this paper, an approach toward impedance compensation of die to printed circuit board interconnected via bondwire is presented. A use-case is illustrated where a standard millimeter-wave bondwire interconnects between a 50-Ohm microstrip transmission line realized on top of an alumina substrate and a 50-Ohm grounded coplanar waveguide to WR12 rectangular waveguide transition. Direct interconnec...Show More
This paper explores the application of Artificial Intelligence (AI) algorithms to control the radiation pattern of smart antennas in high-mobility contexts, such as drones, 5G, and automotive applications. The authors present an AI-based method that employs a feed-forward Artificial Neural Network (ANN) to steer the beam towards a desired direction by modifying the radiation pattern according to s...Show More
The present work introduces an electronically reconfigurable sub-array hybrid cluster as a cost-effective and straightforward solution for clustered phased array design. The cluster consists of three radiating elements: one active and two reactive parasitic elements, and achieves pattern reconfigurability by manipulating the radiated field phase of the parasitic elements through varying their reac...Show More
In this paper is described a novel and low-cost method for the realization of electromagnetic band gap (EBG) based power dividers in Parallel Plate Waveguide Technology (PPW). The proposed configuration can be employed as a basic element of the highly efficient Continuous Stub (CTS) array antenna feeding network. The resulting band-gap feeding network overcomes the problem of good electrical conta...Show More
In this work, an $8\times 8$ waveguide antenna array composed of stepped and slotted radiators for E-band applications is presented. The proposed array architecture, including the feeding network, can be realized through the integration of a single metallic block adhered with an additional top photo-etched sheet. This approach effectively reduces manufacturing complexity, resulting in a low-cost...Show More
The application of radar technology in indoor people monitoring has opened up new avenues, such as localization and tracking, vital signs monitoring, and fall detection. Nevertheless, one of the significant challenges facing radar systems is the issue of indoor multipath propagation, which results in radar ghosts that can diminish the detection accuracy or even compromise the monitoring process en...Show More
In this work, a new dual-band dual-polarized transmitarray (TA) antenna element based on multilayer frequency selective surfaces is introduced. This novel configuration has been successfully tested for K/Ka satellite communication (SatCom) frequency bands and is composed of a single low-profile printed circuit board incorporating five metal layers without any vertical transitional elements. In con...Show More
An E band Cassegrain switched beam high gain antenna for 5G backhauling systems is proposed in this article. The targeted antenna is able to realize beam-switching operations and it is fed by a 7x7 array of Magneto-electric dipoles, with every element capable of providing a steering of ±0.33 degrees, through the beam switching operation. This antenna was thought to use beam switching for compensat...Show More
A novel dual-band dual-polarized transmitarray antenna is presented. The antenna consists of 5 layers printed circuit board. At variance of previous designs, the proposed configuration is conceived without using air gaps; this leads to a low-profile structure. The designed unit-cell is dual polarized, and it works at 20 and 30 GHz exploiting an interleaved lattice configuration. At both bands, the...Show More
In this paper, a classical rat-race coupler based on coplanar stripline is presented. It was built using BiCMOS 55nm technology. Parametrical analysis targeting the position of additive compulsory dummies from selected high quality coplanar stripline is carried out. Two versions of the rat-race couplers are compared: without and with metallic dummies. Simulation results show that isolation and ref...Show More
In this article, a novel millimeter wave (mm-wave), fully hermetic and flippable transitioning structure between grounded coplanar waveguides (GCPWs) and rectangular waveguides (RWGs) is introduced. This transition, realized through standard printed circuit board (PCB) technology, can be employed to feed a waveguide (WG) compliant device on any face of a board given its flexibility in trace routin...Show More
An aperture coupled substrate integrated waveguide (SIW) fed magneto-electric (ME) dipole for 5G Backhauling systems is proposed in this article. The electric dipole is formed by four identical patches, while the magnetic dipole is composed by four vertical metallic shorted vias. A crossed strip is introduced to connect the four patches in the top metal layer to widen the impedance bandwidth. More...Show More
Satellite, fifth generation (5G), and sixth generation (6G) mobile communication systems operating at micro- and millimeter wave frequencies are an essential pillar in advanced network architectures for high-throughput low latency services. The decisive factors for this current development were the significant technological advances accomplished over the last two decades, which meanwhile enable hi...Show More
A novel dual-band transmitarray (TA) unit cell based on the Substrate Integrated Waveguide (SIW) technology is proposed in this article. The TA cell provides orthogonal linear polarizations for the two frequency bands while sharing the same radiating aperture. A dual-band, single-layer, frequency-selective surface (FSS) that generates a wave rotated of 90° to the incident one in one of the two ban...Show More
In this paper, the usage of passive corrugations to improve the performances of continuous transverse stub (CTS) arrays is investigated. Corrugations are employed as a secondary radiation source to reemit surface energy and to modulate surface waves at the antenna surface. Thanks to this effect, we demonstrate that the number of radiating slots of the CTS array can be halved maintaining the electr...Show More
In this paper, a detailed sensitivity study of Butler matrices is proposed. In particular, a Monte Carlo analysis is carried out on each block constituting the matrix to estimate its impact on the overall performance. The isolation level of the crossover transmission path is hence proved to be a critical part of the Butler matrix design. As it will be shown using both full-wave analysis and analyt...Show More
This letter presents a novel vertical waveguide-to-microstrip self-diplexing transition for dual-band applications. The transition is realized with standard printed circuit board (PCB) manufacturing processing, making it suitable for mass production and practical applications. A standard waveguide is screwed on the topside of the stack-up. Dual-band self-diplexing operation is achieved by coupling...Show More
Preliminary results on a compact duplexer design for K/Ka-Band for Satcom on the move user terminals are presented. The proposed duplexer is embedded into a package stack-up composed by five dielectric core layers and ten metal layers and it will be integrated with RF chips and antenna element to form an Antenna Front End (AFE). The duplexer functionality is that to split the TX and RX signals, ma...Show More