Microwave Office facilitates the design of various RF passive components, including filters, couplers, and attenuators, along with active devices functioning under small-signal (AC) conditions, such as low noise and buffer amplifiers. Its linear configuration allows for the simulation of S-parameters (Y/Z/H/ABCD), small-signal gain, linear stability, noise figure, return loss, and voltage standing wave ratio (VSWR), complemented by features like real-time tuning, optimization, and yield analysis. Each E-series Microwave Office portfolio encompasses synchronous schematic and layout editors, 2D and 3D viewers, and extensive libraries featuring high-frequency distributed transmission models, as well as surface-mount vendor component RF models complete with footprints. Additionally, it offers measurement-based simulations and RF plotting capabilities. Microwave Office PCB further enhances the design process by enabling both linear and nonlinear RF circuit design through the advanced APLAC HB simulator, which provides powerful multi-rate HB, transient-assisted HB, and time-variant simulation engines for comprehensive RF/microwave circuit analysis. This extensive toolset empowers engineers to push the boundaries of RF design and streamline their development workflows effectively.