Abstract
This paper presents a visual user-oriented comprehensive computational program used for a wide range of microstrip, coaxial, and waveguide applications. For microstrip application it is used for active and passive circuits design such as microstrip amplifiers, oscillators, couplers, and mixers. For waveguide application, it is used for the design of rectangular waveguide oscillators and amplifiers with post and disc assembly used for the tuning of the active element (IMPATT or Gunn diode). For coaxial application, it is used for the design of coaxial amplifiers and oscillators with the design of the tuning circuit of the active element. The new developed program is compared to other available commercial ones.