Miniaturized multilayer folded substrate integrated waveguide butler matrix

作者：Cheng Yu Jian^*; Zhang C A; Fan Y

来源：Progress in Electromagnetics Research C, 2011, 21: 45-58.

• Center frequency
• Integrated beamforming
• Large circuits
• Low coupling
• Substrate integrated waveguide technologies
• Wave simulations
• Wide operation bandwidth

Recently, substrate integrated waveguide (SIW) technology attracts more and more attention in the development of millimeterwave integrated beamforming network (BFN) depending on its inherent advantages. However, the SIW-based BFN usually has a large circuit size. To overcome this weakness, we propose a novel multi-folded SIW Butler matrix at the center frequency of 60 GHz. Two different full - wave simulation tools are employed to validate our design. This folded BFN offers a number of benefits, such as highly compact configuration, low coupling between adjacent paths, and wide operation bandwidth. For convenient use, the SIW ports can be converted to the microstrip line ports arranged in order through a special broadband two - layer transition network. Such a miniaturized SIW Butler matrix can reduce the circuit area by more than 60% compared with the conventional single - layer version.

• 出版日期2011
• 单位电子科技大学