Florida International University

Satheesh Bojja Venkatakrishnan

John Leonidas Volakis

Markondeyaraj Pulugurtha

Stavros Koulouridis

Muhammad Mubasshir Hossain

Alexander Hovsepian

Anthony Giordano

Peeyush Awasthi

Systems and methods are provided for inline process monitoring (e.g., remote inline process monitoring) for scalable and precision high-yield manufacturing. Antenna probes, such as millimeter (mm) wave (mmWave) antenna (mWA) probes, can be introduced into fabrication equipment to reveal the nature of hidden conductor and/or dielectric defects, as well as via-pad and/or device pad-trace misalignments, going beyond automated optical inspection (AOI) or contact probing.

Inline monitoring system for process defects during manufacturing

Systems and methods are provided for simultaneous beamforming at two close frequency bands. Rotman-lens-based beamforming modules with low size, weight, and power (SWaP) can be used. A stacked array Rotman lens module can use a low cost feeding type of layer-to-layer energy transitions, and the stacked module can be capable of simultaneous beamforming at two close frequency bands.

Dual-band antenna array with stacked rotman lens feed for beamforming

Baluns and antenna devices that achieve improved antenna isolation for simultaneous transmit and receive (STAR) antennas are provided. A tunable balun can be used to compensate for amplitude imbalances in a multi-antenna radio, and/or an antenna agnostic feed network can be used to improve isolation in a single antenna radio. The balun can be integrated directly into the antenna. The balun can control the amplitude of each signal to ensure they are equal, resulting in greater transmitter interference cancellation.

Balun for increasing isolation in simultaneous transmit and receive antennas

Feed networks and methods of using the same to achieve high levels of self-interference cancellation (SIC) in Simultaneous Transmit and Receive (STAR) systems are provided. SIC at the antenna feed network alone can be as high as 100 dB. This can be done by employing entirely low-cost, low-profile passive circuits. The feed network creates a perfect anti-phase path that cancels the high power self-interference signal at the receive port.

Growing community of inventors

Miami, FL, United States of America

Satheesh Bojja Venkatakrishnan