Cantennator allows you to calculate the sizes of the popular home-made antennas for Wi-Fi 3G-UMTS 4G-LTE and other digital networks including digital television. Calculating the sizes of a Tin Can waveguide antenna a Spiral antenna Yagi-Uda Bi-Quad antenna Double Bi-Quad antenna and Collinear Coaxial antenna. For the calculation you need to know only the mode of device working (3G 4G or Wi-Fi) or operating frequency.