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Design and Fabrication of NRD Guide Filter using Inductive Iris  

김영수 (엔알디㈜ 기술연구소 RF연구실)
류원렬 (엔알디㈜ 기술연구소 RF연구실)
최형동 (엔알디㈜ 기술연구소 RF연구실)
유영근 (엔알디㈜ 기술연구소 RF연구실)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.13, no.8, 2002 , pp. 741-747 More about this Journal
Abstract
In this paper, NRD guide band pass filter with newly designed inductive iris structure is proposed and analyzed with its test results. In case of common NRD guide filter with air gap coupled structure, it was not easy to fabricate and process or each NRD guide dielectric resonator blocks using PTFE. However, in this our research, each dielectric resonator fabricated in a single NRD guide is coupled with inductive iris located on metal plates. The structure is suitable for mass production of a precise and reliable millimeter-wave filter applications. As a result of measurements, designed NRD guide inductive iris filter has superior performance. The pass band is 38.66~39.06 MHz with 400 MHz bandwidth, insertion loss is about 1.4 dB and return loss is below -18 dB.
Keywords
Millimeter-Wave; NRD Guide Filler; Cavity Filler;
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