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A tunable cross‐coupled trisection bandpass filter with constant bandwidth based on dual‐mode resonators

机译：基于双模式谐振器的具有恒定带宽的可调谐交叉耦合三体滤波器

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Abstract >A novel third‐order tunable cross‐coupled trisection bandpass filter (BPF) based on dual‐mode resonators (DMRs) is presented in this letter. Electric and magnetic dominant coupling path can be constructed by using two coupled DMRs to meet the requirement of cross‐coupled tunable bandpass filter with constant bandwidth. Three resonating modes of the two DMRs are used to build the cross‐coupled trisection tunable bandpass filter topology. The coupling structure is analyzed and the coupling coefficients are calculated. The tunable BPF is designed, and a transmission zero (Tz) due to the cross‐coupled trisection topology is generated, so that frequency selectivity is enhanced. The prototype is fabricated and measured. The measured results show that the fabricated circuit realizes a tunable central frequency range from 1.64 to 2.16?GHz, maintaining a ?3 dB bandwidth of 119.5?±?3.5 MHz, and a Tz is generated at the lower side of the passband. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract type =“main”xml：lang =“en”> <标题类型=“main”>抽象</ title> <P>基于双模式谐振器（DMRS）的新型三阶可调交叉耦合三射线带通滤波器（BPF）呈现在该字母中。可以通过使用两个耦合的DMR来构造电和磁力主导耦合路径，以满足具有恒定带宽的交叉耦合可调带通滤波器的要求。两个DMRS的三种共振模式用于构建交叉耦合的三尺寸可调带通滤波器拓扑。分析耦合结构，并计算耦合系数。设计可调谐BPF，并且产生由于交叉耦合的三偏拓种引起的传输零（TZ），因此增强了频率选择性。原型制造和测量。测量结果表明，制造的电路实现了从1.64到2.16的可调中心频率范围为119.5？±3.5 MHz的3 dB带宽，并且在通带的下侧产生TZ。</ P> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-24977/'>《Microwave and optical technology letters》</a> <b style="margin: 0 2px;">|</b><span>2020年第5期</span><b style="margin: 0 2px;">|</b><span>共5页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1165.html" title="光学">光学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=cross‐coupling&option=203" rel="nofollow">cross‐coupling;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=dual‐mode resonator&option=203" rel="nofollow">dual‐mode resonator;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=tunable bandpass filter&option=203" rel="nofollow">tunable bandpass filter;</a> </p> <div class="translation"> 机译：交叉耦合;双模谐振器;可调带通滤波器; 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