Ultra-Wideband (UWB) Bandpass Filters Using Multiple-Mode Resonator

My company is looking for an expert in Ultra-Wideband (UWB) Bandpass Filters who can design and develop a solution using Multiple-Mode Resonator (MMR). This solution should have a low-to-high bandwidth of 3.1-10.6. We are seeking somebody who is able to create a filter with a wide range of characteristics and performance, such as low pass, high pass, or band pass filters. For this project, we do not necessarily require a filter with a specific order, whether it be first order, second order, or even third order. We need somebody who is highly knowledgeable and experienced in this field to create a customized filter solution tailored to our needs.