A linear conversion tube with overlapping quadrilateral sections switches RF signals between E-plane and H-plane without bent waveguides.
Metallized dielectric surfaces and an isolated host interface improve PCB waveguide impedance matching while reducing transition loss and size.
Abrupt and gradual impedance sections at RF line ends reduce connector- and via-induced mismatch, reflection, and insertion loss.
An embedded tubular waveguide redirects signals by 90 degrees inside a multilayer substrate, cutting radiation, circuit area, and layout constraints.
Peripheral fasteners replace the center post in a spatial power combiner, improving scalability, assembly, and high-frequency packaging.
A folded serpentine slot through the guide thickness stabilizes periodicity, reduces oscillations, and improves beam transport in TWTs.
A vacuum channel replaces multi-screw waveguide mounting on PCBs, speeding alignment and attachment while limiting transmission losses.
Embedding a Wilkinson divider in a multilayer PCB with resistive foil cuts footprint and loss while maintaining high output isolation.
A coaxial circular waveguide layout shortens the high-frequency path to cut loss while enabling dual-band dual-polarization switching.
RF-choke quarter- and half-wavelength structures isolate chip-level and standard waveguides while limiting leakage, stress, and assembly difficulty.
A PCB-backed hollow cavity waveguide cuts material use and assembly complexity while maintaining precise, low-loss high-frequency transmission.
A passive RIS samples incoming energy through substrate integrated waveguides to estimate channel phase and amplitude without extra RF chains.