## 2 Overview of Published Papers  
The research from [PERSON] et al. (contribution 1) introduces an innovative approach to the pattern synthesis of linear array antennas. They propose the Nonlinear Chaotic Grey Wolf Optimization (NCGWO) algorithm, an enhancement of the Grey Wolf Optimization (GWO) algorithm, for optimal pattern synthesis. The NCGWO algorithm is demonstrated to outperform other intelligent algorithms in electromagnetic optimisation problems, providing superior performance in terms of global search capability and convergence rate. This work opens new avenues for efficient and effective optimisation techniques in antenna design, particularly for linear array antennas. Moving on to contribution 2, the article by [PERSON] et al. presents a significant development in \(W\)-band circularly polarised reflect-array antennas. The proposed antenna design achieves a remarkable 2 dB gain bandwidth of 27.6% and a 3 dB axial ratio bandwidth of 13.8%, making it highly suitable for wireless communication applications. The antenna's performance, with a gain of 29.1 dBi and an aperture efficiency of 52.0%, positions it as a promising candidate for high-frequency communication systems. This contribution augments the ongoing efforts to broaden the applicability of reflect-array antennas in the W-band. In contribution 3, [PERSON] et al. address the demand for antennas with multiple operation bands and improved radiation gains. The authors propose a differentially fed, dual-wideband, dual-polarised patch antenna featuring a crossed dielectric resonator (CDR). The CDR design contributes to enhanced isolation levels and radiation gain, with the antenna exhibiting dual bands of 1.86-2.52 GHz and 3.26-3.72 GHz. The compact size of the antenna, coupled with its excellent performance characteristics, positions it as a promising candidate for 4G/5G wireless communication systems. The paper by [PERSON] et al. (contribution 4) introduces two novel sector beam scanning approaches (BSAs) based on element position perturbations in the azimuth plane. These approaches offer a balance between scanning range and side lobe levels, providing a versatile solution for beam scanning applications. By combining element position perturbation with the single convolution/genetic algorithm technique, the proposed approach achieves a smaller scanning range with a relatively constant half power beamwidth and lower side lobe levels. This research contributes to the optimisation of beam scanning in linear antenna arrays. The work by [PERSON] et al. (contribution 5) presents a flexible antenna designed for wideband biomedical wireless communication. The antenna, operating over the frequency range of 5-19 GHz, exhibits circular polarisation in the 5-6 GHz range and linear polarisation from 6 to 19 GHz. The proposed design, featuring an inverted G-shaped strip on a flexible substrate, achieves excellent performance metrics such as a 3 dB axial ratio bandwidth of 18%, impedance matching bandwidth of 117%, a maximum gain of 5.37 dBi, and high radiation efficiency. This flexible antenna design holds promise for diverse applications in off-body and on-body communication systems. The research by [PERSON] et al. (contribution 6) introduces a novel microstrip patch antenna design for sub-6 GHz and sub-7 GHz 5G wireless applications. Utilising slots and parasitic strips, the proposed antenna achieves enhanced gain and bandwidth, offering a wider bandwidth at both 3.45 GHz and 5.9 GHz compared to conventional designs. This innovation holds significant promise for high-gain compact patch antennas, contributing to the efficiency of 5G wireless communications in these crucial frequency bands. In contribution 7, [PERSON] et al. address the often-overlooked aspect of aperture efficiency in antenna design. Maximising aperture efficiency is demonstrated to reduce the required number of radiating elements, resulting in cost-effective antennas with increased directivity.