Abstract: This document describes techniques and systems for a vertical microstrip-to-waveguide transition. A radar system may include a monolithic microwave integrated circuit (MIMIC) to generate electromagnetic signals and a printed circuit board (PCB) that includes a first surface, a microstrip, and a grounding pattern. The microstrip can be located on the first surface and operatively connect to the MIMIC. The grounding pattern is located on the first surface and made of conductive material. The radar system also includes a transition channel positioned over the grounding pattern, which includes a vertical taper between a bottom surface and a top surface. The transition channel defines a dielectric-filled portion formed by the grounding pattern and its interior surface. The described vertical transition can reduce manufacturing costs and support a wide bandwidth by tolerating an air gap at the transition-to-waveguide interface.

Abstract: An exemplary sensor for an aircraft includes a sensor mountable within an aircraft and operative to communicate wirelessly communications to a distributed aperture antenna. The sensor is operative to harvest energy from the aircraft to power the sensor.

Abstract: An exemplary sensor for an aircraft includes a sensor mountable within an aircraft and operative to communicate wirelessly communications to a distributed aperture antenna. The sensor is operative to harvest energy from the aircraft to power the sensor.

Abstract: A local area network (LAN) includes a computer processing unit (CPU) located within an aircraft cabin. A plurality of radios is connected to the CPU and to a radio frequency (RF) combiner and splitter. The RF combiner and splitter allows for each of the radios to transmit and receive common information over a plurality of different channels. As the number of users within the LAN increases additional radios can be connected to the CPU and the RF combiner and splitter for increased signal coverage and capacity.