Programa del congreso

In this work, the corona discharge thresholds in microstrip bandpass filters (BPFs) are studied, and a new design strategy is proposed for enhancing the peak power handling capability (PPHC). For this purpose, we suggest a new topology based on circled-end resonators to achieve a reduction of the maximum peak voltage (Vpeak) and avoid sharp corners. First, a theoretical analysis is carried out to obtain an expression for modeling the reduction of Vpeak. Next, a second study shows the variation of the PPHC for different sizes of the rounded-ends. Finally, the effectiveness of the proposed solution is validated by means of experimental measurements, showing a PPHC enhancement of 2.10 dB compared to a conventional microstrip BPF with rectangular-end resonators.

The use of 3D printed technology for designing wideband flat lenses is

explored in this work. Different types of lenses are analyzed, all of

them with wideband characteristic in the Ka band. The design of these

graded index lenses is made using different commercial filaments and

playing with different infill percentages always taking into account as

well mechanical limitations. A study of their performance when scanning

the beam is also presented. Some prototypes have been manufactured and

measured showing an excellent performance including low loss

characteristic in this high frequency band.

Multi-feed shaped-beam perforated dielectric transmitarray in millimeter-band

Design of a Fresnel lens at 60GHz