Gene regulatory networks are critical at every stage of life – from embryonic decision making to constant maintenance of intercellular protein concentrations. Rapidly evolving tools in synthetic biology have allowed for the engineering of new cellular signaling pathways but optimizing their performance remains a challenge. This is due in part to the difficulty of designing around contextual effects, i.e. shared resources, signaling delays, and stochasticity, that affect gene expression dynamics.

We present a unified theory of exceptional points of degeneracy (EPD) in coupled-mode guiding structures, i.e., a theory that illustrates electromagnetic mode characteristics under the special dispersion degeneracy condition of state eigenvectors. This concept finds a variety of applications in both optics and microwave regimes.

The mm-wave frequency spectrum has gained prominence in recent years to support high-data rate energy efficient wireless communication for the future 5G standards and other IoT applications. Mass-deployment and adoption of such technologies rely on silicon integration of the mm-wave transceivers. However, achieving high data-rates at mm-wave frequencies over long distance wireless links require efficient Watt-level transmitters and power amplifiers – a challenge in low breakdown voltage silicon technologies.

Nowadays, wireless devices cover numerous wireless communication standards where almost for each one a different frequency band has been allocated. There is a strong motivation towards SoC (System-on-Chip) solutions, where everything is integrated inside a chip to reduce the cost and form-factor of wireless devices. In radio-frequency receivers, due to the existence of large out-of-band blockers and limited dynamic range, band-select filtering of the input signal is essential. Currently, most of the frontend circuitry of transceivers can be integrated on-chip.