超宽带高相位一致性5×2矩阵开关的设计

射频开关是无线通信系统中的关键部件,其性能决定了电子产品的关键性能,是影响系统稳定性和可靠性的直接因素。该文矩阵开关频率范围为30³ 000 MHz,一共10个输入,2个输出。输入分为5组,接收来自5对天线的信号,并通过输入接口给天线供电。该矩阵开关采用上、下两部分对插结构,输出通过开关在5组输入之间切换,采用复杂可编程逻辑器件(CPLD)控制程序选通通路。测试结果表明,该矩阵开关具有良好的相位、幅度一致性,隔离度较高,驻波小,开关转换速度快,便于对每部分进行测试,优化等特点。

Design on Ultra-wideband High Phase Coherence 5×2 Matrix Switch

RF switch is a key component of the wireless communication system, and its performance determines the key performance of electronic products, which is a direct factor affecting the stability and reliability of the system.In this paper,the frequency range of the matrix switch assembly is 30~3 000 MHz,and the matrix switch assembly includes a total of 10 inputs and two outputs.Input ports are divided into five groups,receiving signals from the five pairs of antennas,and power to the antenna through the input interface. The switching module uses the structure of two parts on the plug,by switching the output between the five input packets. and the pathway is controlled by complex programmable logic device(CPLD) program. Test results show that the matrix switching module has excellent performance of good opening phase, amplitude uniformity, high isolation, low VSWR,high switching speed. It is easy to the test and optimization of each part.