High reliability is essential for spaceborne antenna

however PCB feeder and solder joint are usually lacking of guarantee in reliability. Therefore

a integrative and solderless design of cable

balun and spital is proposed using improved balun

intensifying the cooperative design idea of electricity

structure and technology. As a example

a UWB conical spiral antenna is designed. The simulated results show that the antenna achieves a wide-angle coverage with high gain and low axial ratio

as same as high front-to-back ratios.