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为了优化混响室的场性能,提出了采用双馈源的混响室设计思想,从原理上对混响室采用双馈源的可行性进行了分析,并采用矩量法分别对单双馈源条件混响室进行数值模拟计算,从场强大小和场均匀性两方面研究了采用双馈源对混响室场性能的影响。数据结果表明,采用双馈源时能显著改善混响室工作区域的场均匀性能,并且要产生相同大小的场强,采用双馈源能降低对功率放大器的要求,进而降低混响室的测试成本。
In order to optimize the field performance of the reverberation chamber, the design idea of the reverberation chamber with double feed is proposed. The feasibility of using dual feed in the reverberation chamber is analyzed theoretically. Source conditions of reverberation room for numerical simulation calculation, from the field strength size and field uniformity two aspects of the use of double feed on the reverberation chamber field performance. The data results show that using double feed can significantly improve the field uniformity performance in the work area of reverberation room and produce the same size of field strength. Using dual feed-in can reduce the requirement for power amplifier and thus reduce the reverberation room test cost.