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本文简要探讨在选址通信中如何实现双工通信问题,重点介绍150兆赫分布参数式双工器试制情况。实验结果表明:采用λ/2同轴电缆谐振变压器式结构,可以达到隔离度衰耗为35～40分贝,介入损耗为1分贝以下的技术指标,基本上满足选址通信实现双工的要求。
This article briefly explores how to implement duplex communications in site-oriented communications, highlighting the trial production of a 150 MHz distributed parametric diplexer. The experimental results show that the use of λ / 2 coaxial cable resonant transformer structure can achieve the isolation attenuation of 35 to 40 dB, the insertion loss of 1 dB or less of the technical indicators to meet the site to achieve the basic communication duplex requirements.