Our PhD Students Present at the Top Conference in the Field: EuCAP 2024

Recently, the European Conference on Antennas andPropagation (EuCAP) 2024 was held in Glasgow, UK. EuCAP is an important eventin the field of antennas and propagation, aimed at promoting collaboration andexchange within Europe and globally. The conference attracted numerousparticipants from the international community, including experts from bothacademia and industry, who gathered to discuss the latest research findings anddevelopment trends.

Three PhD students from Professor Xue Quan’sresearch team participated in the conference and presented their papers,showcasing their research achievements. Their topics covered cutting-edgesubjects such as Coaxial Dual-Polarized End-Fire Antenna Design,Wide-Angle Scanning Phased Array Based on Heterogeneous BeamElements, and Circularly Polarized Wide-Angle Scanning Phased ArrayDesign.

Coaxial Dual-Polarized End-Fire Antenna Design

Dr. Li Liangying’s paper, A WidebandAperture-Shared Dual-Polarized End-Fire Antenna with Low Profile and HighIsolation, was included as a poster presentation at EuCAP. The paperpresents a dual-polarized antenna designed for the 28 GHz frequency band. It usesa PIFA-like structure to design the vertical polarization unit, which hasend-fire characteristics, a low profile, and wideband capabilities.Additionally, a linear dual-polarized antenna is proposed based on the VPelement and a dual-layer patch dipole antenna. This antenna benefits frommulti-structure reuse technology and a carefully designed dual-antenna layout,leading to advantages such as miniaturization, low profile, widebandperformance, and high FBR.

Wide-Angle Scanning Phased Array Based onHeterogeneous Beam Elements

Dr. Wan Yinglu’spaper, A Linear Wide-Angle Scanning Phased Array Antenna UsingHeterogeneous Beam Element Technology, was also featured as a posterpresentation. This paper introduces a novel HBE configuration that achievescustomized tilted-element beams by controlling the current distribution in theradiating parts. Using HBEs, the performance of a 4-element linear HBE-basedphased array antenna (HBE PAA) is evaluated. Simulation results show that, inthe 5G millimeter-wave frequency band (24.25-29.5 GHz, 19.5%), the HBE PAA canextend the scanning range from 60° to 70°, with less than a 1 dB loss in orthogonal planegain compared to a standard reference using conventional dipole elements. HBEtechnology provides a valuable supplement to existing wide-angle scanningmethods and shows potential as an efficient solution for wide-angle scanning.

Circularly Polarized Wide-Angle Scanning PhasedArray Design

Dr. Wei Jia’spaper, Circularly Polarized Wide-Angle Scanning Phased Array Based onHeterogeneous Beam Elements, was also presented as a poster. This paperproposes a circularly polarized phased array antenna (PAA) based on wideheterogeneous beam elements (HBEs) that enables wide-angle scanning. Theproposed HBE PAA consists of two units with tilted beams on both sides and twounits with wide-edge beams on both sides. A 5 GHz CP HBE antenna with a widebeamwidth was designed, and by adding parasitic directors, the beam tilt anglereached 50°. Building on this, a 1x4-element HBE PAA wasdesigned, fabricated, and measured. Its 3dB gain variation and 3dB axial ratioscanning range reached ±80°.