Dielectric lens antennas design at millimeter waves

In this paper short introduction in dielectric lens antennas at mm-waves are given. Dielectric lens antennas become more popular as applications start to migrate to higher frequencies where lens dimensions and weight become small enough and allow easy integration. Conventional dielectric antennas are also quite inexpensive. Typically used feeds and lens shapes are discussed together with global optimization techniques and analyzing kernels employed for lens antenna synthesis. Finally, some remarks regarding lens production are given.