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首次采用低温共烧陶瓷(LTCC)技术的设计出频率在34.2 GHz时相位延迟为32λg和1λg的带状线延迟线。延迟线具有低插损、低色散的特性。由于LTCC独特的工艺特点,实现结构的小型化和结构紧凑性。文中设计的32λg和1λg延迟线的尺寸分别为7×5×3 mm3和2×1.5×3 mm3。最终仿真结果也证明该方案的优越性:对于32λg延迟线,在34.2GHz时插入损耗为3.39dB,在34.1-34.3GHz频段内插损优于5.068dB,驻波小于2.1;1λg延迟线,在中心频率34.2GHz插入损耗为0.316dB,34.1-34.3GHz频段上优于0.317dB,驻波小于1.25。
For the first time, the LTCC technique was used to design a stripline delay line with a phase delay of 32λg and 1λg at 34.2 GHz. Delay line with low insertion loss, low dispersion characteristics. Due to the unique process characteristics of LTCC, miniaturization and compactness of the structure are realized. The size of the 32λg and 1λg delay lines designed in this paper are 7 × 5 × 3 mm3 and 2 × 1.5 × 3 mm3, respectively. The final simulation result also proves the superiority of the scheme: the insertion loss at 34.2GHz is 3.39dB for the 32λg delay line, better than 5.068dB in the 34.1-34.3GHz frequency band, and the standing wave is less than 2.1; for the 1λg delay line, The center frequency of 34.2GHz insertion loss is 0.316dB, 34.1-34.3GHz frequency band is better than 0.317dB, standing wave is less than 1.25.