The X-band Two-way Receiver Developed

This paper designs a two path receiver front. The theory of the two path receiver is introduced in the dissertation. The method of control during the receiving process is raised and a receiver scheme of the two path receiver front will be designed. Considering the system's special requirement, a Phase changed network with switch is designed with power divider and microwave switch. Using the controlling program that control the microwave switch's work, the system can change the phase of the signal itself that will be send out.With the ADS(Advanced Design System) software, the dispatch switch, power divider, phase changed network with switch and LNA are designed and the results of emulation and testing. This paper gives the details of the design processing, the problem of the device and the way to better it. During the design for the whole system, this paper briefly introduced the fundamental theories for each functional module at first, and then focused on the design method for them and showed the test results. At the same time, the author analyzed the main factors which influent the RF circuits' function. And some practical tips for improving RF circuits' functions are given.At last, the designed circuits are tested. The test results show that the components can meet the requirement of the front system.