I had the opportunity to interview with a professor and two of his PhD students for potential supervision in the mm-wave circuits group. Unfortunately, during the initial interview, which focused on the bioelectronics group, I struggled with some basic electronics questions that I had not revised thoroughly. As the interview progressed and delved deeper into the topic, I found it challenging to provide satisfactory answers, leading to a less-than-optimal outcome.
The second interview, which was more aligned with my interest in microwave circuits, took place the following day. Despite my efforts to study microwave concepts in preparation, my undergraduate-level knowledge in this area proved limited. While I managed to satisfy the interviewer with my understanding of microwave circuits, the conversation eventually shifted to circuits and communication aspects, where I once again struggled to perform well. As a result, I did not hear further from the professor or the research group.
I want to emphasize that I am not seeking justification for my performance during those interviews. I understand the importance of having a strong grasp of electronics and microwave circuits when pursuing this field. I simply wanted to share my experience.
Now, as I plan to reapply to the same research group this year, I have been working on three patents, which I hope to disclose during the interview period. Additionally, I am committed to thoroughly revising my knowledge of electronics and circuits concepts.
Here comes my question: Would it be a good idea to email the professor now, before the start of the application/intake period, to express my continued interest in the research group? Or should I wait until the application period begins? Or perhaps, is it not advisable to email the professor at all?