Adaptive Microwave Filters and Multiplexers for Communication Systems

用于通信系统的自适应微波滤波器和多路复用器

• 批准号: 372075-2012
• 负责人: Laforge, Paul
• 金额: $ 1.31万
• 依托单位: University of Regina
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=572856
• 关键词: Adaptive; Microwave; Filters; Multiplexers; Communication

The use of multi-band microwave systems is increasing, especially for cellular networks. Many cell phones today can transmit different types of coded signals over multiple frequency bands. Radio frequency filters are essential devices in the communication of these signals. With a proper multi-band filter design, a two terminal device can be made that performs the needed filtering for the multiple frequency bands used by a cell phone or by base stations. This reduces the amount and total size of the filters and eliminates the need for switches and multiple chip sets for each type of transmitted signal. The spectral efficiency of a microwave system can be improved by implementing adaptive filtering architectures. A switched filter bank has traditionally been used to achieve this type of architecture. Tunable multi-band filters allow for bandwidth to be assigned as needed by the microwave system. The design of adaptive duplexers and multiplexers will further offer flexibility into the microwave communication system. The filtering provided by tunable multi-band filters and tunable multiplexers can adapt correspondingly to satisfy the demand in bandwidth. The adaptive devices will be developed, designed, fabricated, and characterized. Their linearity performance will also be characterized while considering their loss and tuning range. Computer aided design algorithms will be developed to control the tuning of these adaptive filters and multiplexers. The main goals of this research program are to develop, fabricate and characterize multi-band microwave filters, to develop, fabricate and characterize novel adaptive multi-band microwave filters, to develop, design, fabricate and characterize adaptive multiplexers, to characterize the linearity performance as a function of frequency, loss and tuning range for the adaptive filters and multiplexers, and to develop computer aided design programs for determining the optimum tuning states for the fabricated filters and multiplexers.

多频带微波系统的使用正在增加，特别是对于蜂窝网络。如今，许多手机可以在多个频带上传输不同类型的编码信号。射频滤波器是这些信号通信中必不可少的设备。通过适当的多频带滤波器设计，可以制造对蜂窝电话或基站使用的多个频带执行所需滤波的双终端设备。这减少了滤波器的数量和总尺寸，并且消除了对用于每种类型的传输信号的开关和多个芯片组的需要。 微波系统的频谱效率可以通过实现自适应滤波架构来提高。开关滤波器组传统上用于实现这种类型的架构。可调谐多频带滤波器允许根据微波系统的需要分配带宽。自适应双工器和多路复用器的设计将进一步为微波通信系统提供灵活性。由可调谐多频带滤波器和可调谐多路复用器提供的滤波可以相应地适应以满足带宽的需求。将开发、设计、制造和表征自适应装置。在考虑其损耗和调谐范围的同时，还将表征其线性性能。 将开发计算机辅助设计算法来控制这些自适应滤波器和多路复用器的调谐。 该研究计划的主要目标是开发，制造和表征多频带微波滤波器，开发，制造和表征新型自适应多频带微波滤波器，开发，设计，制造和表征自适应多路复用器，表征自适应滤波器和多路复用器的线性性能作为频率，损耗和调谐范围的函数，并开发计算机辅助设计程序，用于确定所制造的滤波器和多路复用器的最佳调谐状态。