{"title":"在实际频率上具有 2N+1 传输零点的带通滤波器","authors":"Sergii Litvintsev, Alexander Zakharov","doi":"10.3103/s0735272723100035","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper discusses N-order bandpass filter (BPF) with all mixed couplings between adjacent resonators, and between end resonators and loads. It has (2<i>N</i> + 1) transmission zeros (TZ) at real frequencies. To the existing (<i>N</i> + 1) TZs generated by mixed couplings, another <i>N</i> TZs are added, which generated by resonators with special properties. Each such resonator is a λ/4 resonator, in which the connection point is located relatively close to the short-circuited end. In this case, the input admittance of the resonator <i>Y</i>(jω) has a pole ω<sub>p</sub>, which is located to the right and at a small distance from the main resonant frequency ω<sub>0</sub>. This pole ω<sub>p</sub> of the <i>Y</i>(jω) function leads to the appearance of a right-handed TZ in a BPF characteristic. If we use <i>N</i> resonators with different connection points, then <i>N</i> additional TZs will appear. The design of that BPF is considered. The measured and simulated frequency responses of the second-order BPF with 5 TZs are presented.</p>","PeriodicalId":52470,"journal":{"name":"Radioelectronics and Communications Systems","volume":"150 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bandpass Filters with 2N+1 Transmission Zeros at Real Frequencies\",\"authors\":\"Sergii Litvintsev, Alexander Zakharov\",\"doi\":\"10.3103/s0735272723100035\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>This paper discusses N-order bandpass filter (BPF) with all mixed couplings between adjacent resonators, and between end resonators and loads. It has (2<i>N</i> + 1) transmission zeros (TZ) at real frequencies. To the existing (<i>N</i> + 1) TZs generated by mixed couplings, another <i>N</i> TZs are added, which generated by resonators with special properties. Each such resonator is a λ/4 resonator, in which the connection point is located relatively close to the short-circuited end. In this case, the input admittance of the resonator <i>Y</i>(jω) has a pole ω<sub>p</sub>, which is located to the right and at a small distance from the main resonant frequency ω<sub>0</sub>. This pole ω<sub>p</sub> of the <i>Y</i>(jω) function leads to the appearance of a right-handed TZ in a BPF characteristic. If we use <i>N</i> resonators with different connection points, then <i>N</i> additional TZs will appear. The design of that BPF is considered. The measured and simulated frequency responses of the second-order BPF with 5 TZs are presented.</p>\",\"PeriodicalId\":52470,\"journal\":{\"name\":\"Radioelectronics and Communications Systems\",\"volume\":\"150 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radioelectronics and Communications Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3103/s0735272723100035\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radioelectronics and Communications Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s0735272723100035","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
Bandpass Filters with 2N+1 Transmission Zeros at Real Frequencies
Abstract
This paper discusses N-order bandpass filter (BPF) with all mixed couplings between adjacent resonators, and between end resonators and loads. It has (2N + 1) transmission zeros (TZ) at real frequencies. To the existing (N + 1) TZs generated by mixed couplings, another N TZs are added, which generated by resonators with special properties. Each such resonator is a λ/4 resonator, in which the connection point is located relatively close to the short-circuited end. In this case, the input admittance of the resonator Y(jω) has a pole ωp, which is located to the right and at a small distance from the main resonant frequency ω0. This pole ωp of the Y(jω) function leads to the appearance of a right-handed TZ in a BPF characteristic. If we use N resonators with different connection points, then N additional TZs will appear. The design of that BPF is considered. The measured and simulated frequency responses of the second-order BPF with 5 TZs are presented.
期刊介绍：
Radioelectronics and Communications Systems covers urgent theoretical problems of radio-engineering; results of research efforts, leading experience, which determines directions and development of scientific research in radio engineering and radio electronics; publishes materials of scientific conferences and meetings; information on scientific work in higher educational institutions; newsreel and bibliographic materials. Journal publishes articles in the following sections:Antenna-feeding and microwave devices;Vacuum and gas-discharge devices;Solid-state electronics and integral circuit engineering;Optical radar, communication and information processing systems;Use of computers for research and design of radio-electronic devices and systems;Quantum electronic devices;Design of radio-electronic devices;Radar and radio navigation;Radio engineering devices and systems;Radio engineering theory;Medical radioelectronics.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
