盧信嘉臺灣大學：電信工程學研究所許智凱Hsu, Chih-KaiChih-KaiHsu2007-11-272018-07-052007-11-272018-07-052007http://ntur.lib.ntu.edu.tw//handle/246246/58909在毫米波頻段有許多頻段可提供5GHz以上的頻寬來實現2~4Gbps的高速通訊。本論文即針對60GHz以及70GHz頻段，設計帶通濾波器。 論文中使用基板合成波導共振腔結構，在低溫共燒陶瓷以及氧化鋁基版上製作了數種分別操作在58~62GHz、71~76GHz兩個頻段的耦合共振帶通濾波器。並在共振腔中加入並聯的共平面波導傳輸線，使之產生了傳輸零點。濾波器最低的輸入損耗都能小於2.8 dB，最大的反射損耗除了加入零點的濾波器外，其他都能高於15 dB。由於共振腔的高階模，以基板合成波導來製作濾波器會有第二通帶出現。There are many allocated frequency band can provide a bandwidth of more than 5 GHz to realize high speed communication up to 2Ghps to 4Ghps. This thesis presents the design of bandpass filters on 60GHz-band and 70GHz-band. In this thesis, we design several coupling resonant bandpass filters for 60GHz-band and 70GHz-band by the substrate integrated waveguide (SIW) cavity structure on the LTCC and alumina substrate. And then we add shunt CPW lines to introduce a transmission zero. The lowest insertion loss of these filters is less than 2.8 dB, and the return loss is higher than 15 dB except the filter with transmission zero. There will be a second passband due to the high order mode of the cavity if we design filters by the substrate integrated waveguide cavity structure.誌謝 …………………………………………………………………...……….……. i 中文摘要 ………………………………………………………………...……....…. ii Abstract ………………………………………………………………..………….…iii Table of Contents ………………………………………………………….………... iv List of Figures …………………………………………………………………....... vi List of Tables …………………………………….……………………………...…. ix Chapter 1 Introduction 1 1.1 Motivation 1 1.2 Applications for 60GHz and 70GHz bands 3 1.3 The introduction of LTCC technology 6 1.4 Literature review 8 1.5 Thesis organization 11 Chapter 2 Substrate integrated waveguide and coupling resonators 13 2.1 Introduction 13 2.2 Substrate integrated waveguide 14 2.3 Substrate integrated waveguide cavity 19 2.3.1 Rectangular waveguide cavity 19 2.3.2 Substrate integrated waveguide cavity 24 2.4 Coupling resonator circuit 24 2.4.1 General theory of couplings 25 2.4.2 Electric couplings 27 2.4.3 Magnetic couplings 30 2.4.4 Coupling coefficient K 33 2.5 External quality factor 35 Chapter 3 Filter design procedures 40 3.1 Chebyshev Filters 40 3.1.1 Chebyshev response 40 3.1.2 Evaluation of the coupling coefficient 41 3.2 Bandpass filters design by LTCC technology 44 3.2.1 60GHz-band bandpass filter 45 3.2.2 70GHz-band bandpass filter 55 3.3 Bandpass filters design by alumina technology 60 3.3.1 60GHz-band bandpass filter 61 3.3.2 70GHz-band bandpass filte 64 3.3.3 60GHz-band bandpass filter with transmission zeros 68 Chapter 4 Measurement procedures and results 72 4.1 Measurement setup 72 Chapter 5 Conclusion 74 Reference …............... 764492443 bytesapplication/pdfen-US基版合成波導共振腔濾波器耦合SIWcavityfiltercouplingthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/58909/1/ntu-96-R94942064-1.pdf