Band-pass coplanar filters in the G-frequency band

This letter is devoted to the design of passive coplanar devices in the G-frequency band from a classical electrical circuit approach. Indeed, as long as coplanar transmission lines are correctly dimensioned, analytical models based on quasi-TEM approximation can be used. Simulated and experimental results in the range 0.5 to 220GHz are compared. They are exemplified with a 200-GHz open-ended stub and a 165-GHz traditional third-order quarter-wavelength shunt-stub filter.