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[캡스톤 설계과목]졸업작품(논문)_공학계열에 대한 자료입니다.
목차
Abstract
1. Introduction
2. Fundamentals of Microwave Filter
2.1 Microstrip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Classification of Filters. . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Parallel Coupled Line . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3. Design of Microstrip Bandpass Filter
3.1 Required Specification . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Mathematical Calculation . . . . . . . . . . . . . . . . . . . . . . . .15
3.3 Simulation Procedures . . . . . . . . . . . . . . . . . . . . . . . . .18
3.4 Layout Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5 Momentum Simulation and Tuning. . . . . . . . . . . . . . . . .25
4. Conclusion
5. Bibliography
본문내용
A filter is widely used in overall RF system. There are many species and structures in filter. A filter seems to be simple, but there are many considerations to design filter. In this paper, we design microstrip bandpass filter which has bandwidth of 500 MHz and center frequency of 2.5 GHz. Alumina is used as substrate, and chromium is used as conductor. Final results are achieved as follows. Insertion loss at 2.25 GHz is 2.28 dB. Insertion loss at 2.75 GHz is 2.33 dB. Attenuation at 2 GHz is 32.75 dB. Attenuation at 2.5 GHz is 44.35 dB. Attenuation at 4 GHJz is 50.74 dB. And the number of ripple in passband in 4. Except for attenuation in passband, the other results are satisfied with required specifications. Attenuation in passband of required specifications is 0.5 dB
참고문헌
1) David M. Pozar, “Microwave engineering 2nd edition” , 1998
2)Jia-Sheng Hong and M. J. Lancaster, “Microstrip Filters for RF/Microwave Applications”, 2001
3) Allan W. Scott, “Understanding Microwaves”, 1993
4) Guillermo Gonzalez, “Microwave Transistor Amplifier”, 1996
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