| 宽带90°相移网络的设计与实现 |
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| 引用本文： | 全景才,刘琼发. 宽带90°相移网络的设计与实现[J]. 华南师范大学学报(自然科学版), 1995, 0(3) |
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| 作者姓名： | 全景才 刘琼发 |
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| 作者单位： | 华南理工大学无线电工程系，华南师范大学物理系 |
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| 摘 要： | 本文依据椭园函数理论，采用切比雪夫逼近法，让相移网络的输出相位差在规定的频率范围内满足切比雪夫条件，以迟近９０°的相位差，设计出一种精确的宽带９０°相移网络。根据设计的数据制作出来的相移网络，测试结果表明相移误差小，性能良好，满足中波单边带立体声广播系统的要求。
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| 关 键 词： | 滤波器；相移网络；相位差 |
DESIGN AND REALIZATION OF A WIDEBAND NETWORK WITH QUADRATURE PHASI-SHIFT |
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| Quan Jincai. DESIGN AND REALIZATION OF A WIDEBAND NETWORK WITH QUADRATURE PHASI-SHIFT[J]. Journal of South China Normal University(Natural Science Edition), 1995, 0(3) |
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| Authors: | Quan Jincai |
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| Abstract: | An accurate wideband network with quadrature phase-shift is introduced in this paper. Thiswideband network is designed on the basis of the theory of Elliptic function. Chebyshev approxi-mation method is used so that the output singal phase difference of this network conforms toCheby shev conditions and approximates quadrature in a stipulative band scope, The phase shiftnetwork that is made in accordance with the design data is tested. The test results illustrate thathis network has small phase-shift error and good performance and meets the demand for single-band stereo broadcasting systems. |
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| Keywords: | filter phase shift network phase difference |
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