Miniature wideband slotline antennas for phased array applications

Miniature wideband antennas are used in phased array systems for several civilian and military applications. This work presents the results provided by several slotline miniature devices that can be manufactured in simple workshops. The feeders of such devices were coaxial cables with an impedance matching dummy cable extension. It may be shown that these structures are yet not optimized for the upper frequency bands, but still they offer promising performance.