Pasternack Blog

A waveguide horn antenna is a type of aperture antenna that is designed with a gradual transition of the inner metallic walls to ensure an impedance match between the waveguide port to free space. In this way, a waveguide horn antenna’s aperture and axial length can be adjusted to achieve the desired gain and directivity ..

Gunn Diodes have been used to build upper microwave, millimeter-wave, and even terahertz oscillators for a wide range of applications over 40 years. To this day, Gunn Diode oscillators are competitive with monolithic microwave integrated circuit (MMIC) oscillator solutions. Hence, Gunn Diodes have been the premier solid-state coherent power generation device at frequencies above ~10 ..

Waveguides come in many varieties. The most common “shapes” for waveguide cross sections are rectangular and circular/oval. Waveguide can carry electromagnetic energy in several modes, though they are typically specified for a primary mode that presents the most desirable characteristics for loss and bandwidth. This mode is generally the transverse electric (TE) mode, where the ..