WANG Rui, LI Le-zhong, PENG Long, TU Xiao-qiang, ZHONG Xiao-xi. Synthesis of Star-Junction Multiplexers[J]. Journal of University of Electronic Science and Technology of China, 2017, 46(4): 525-529. doi: 10.3969/j.issn.1001-0548.2017.04.008
Citation:
|
WANG Rui, LI Le-zhong, PENG Long, TU Xiao-qiang, ZHONG Xiao-xi. Synthesis of Star-Junction Multiplexers[J]. Journal of University of Electronic Science and Technology of China, 2017, 46(4): 525-529. doi: 10.3969/j.issn.1001-0548.2017.04.008
|
Synthesis of Star-Junction Multiplexers
- Received Date: 2016-05-05
- Rev Recd Date:
2016-12-25
- Publish Date:
2017-07-30
-
Abstract
This paper presents a method for synthesizing coupled resonator multiplexers with a star-junction (an extra resonant junction in addition to the channel filters). A linear frequency transformation is proposed for the evaluation of the characteristic polynomials of the each channel filter composed of star-junction multiplexers, and then coupling matrix of overall multiplexers can be obtained by using the proposed linear frequency transformation and well-established method. The evaluation of group delay in the physical frequency f domain and S-parameters based on coupling matrix are derived. To illustrate the validation of the method, two examples, including 25-poles multiplexers and 7-poles diplexer, have been synthesized, and the 7-poles diplexer has been further designed, manufactured and measured. The measured resuts are in good agreement with the synthetic results, which further verify the accuracy of the proposed method.
-
References
[1]
|
胡皓全, 曹纪纲.新型微带交叉耦合环微波带通滤波器[J].电子科技大学学报, 2008, 37(6):875-880. http://www.cnki.com.cn/Article/CJFDTOTAL-DKDX200806022.htm
HU Hao-quan, CAO Ji-gang. Novel microwave bandpass filter with microtrip cross-coupled square open-loop resonators[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6):875-880. http://www.cnki.com.cn/Article/CJFDTOTAL-DKDX200806022.htm |
[2]
|
孙守家, 吴边, 梁昌洪.新型双模方环微带带通滤波器[J].西安电子科技大学学报, 2014, 41(1):53-56. http://www.cnki.com.cn/Article/CJFDTOTAL-XDKD201401010.htm
SUN Shou-jia, WU Bian, LIANG Chang-hong. Novel dual-mode square loop microstrip bandpass filter[J]. Journal of Xidian University, 2014, 41(1):53-56. http://www.cnki.com.cn/Article/CJFDTOTAL-XDKD201401010.htm |
[3]
|
CAMERON R J. Advanced coupling matrix synthesis techniques for microwave filters[J]. IEEE Trans on Microwave Theory and Techniques, 2003, 51(1):1-10. doi: 10.1109/TMTT.2002.806937 |
[4]
|
SKAIK T F, LANCASTER M J, HUANG F. Synthesis of multiple output coupled resonator circuits using coupling matrix optimization[J]. IET Microw Antennas Propag, 2011, 5(9):1081-1088. doi: 10.1049/iet-map.2010.0447 |
[5]
|
SKAIK T F, LANCASTER M J. Coupled resonator diplexer without external junctions[J]. Journal of Electromagnetic Analysis and Applications, 2011, 3(6):238-241. doi: 10.4236/jemaa.2011.36038 |
[6]
|
SKAIK T. Novel star-junction coupled-resonator multiplexer structures[J]. Progress in Electromagnetics Research Letters, 2012, 31:113-120. doi: 10.2528/PIERL12030114 |
[7]
|
SHANG Xiao-bang, WANG Yi, XIA Wen-lin, et al. Novel multiplexer topologies based on all-resonator structures[J]. IEEE Trans on Microwave Theory and Techniques, 2013, 61(11):3838-3845. doi: 10.1109/TMTT.2013.2284496 |
[8]
|
MACCHIARELLA G, TAMIAZZO S. Synthesis of star-junction multiplexers[J]. IEEE Trans on Microwave Theory and Techniques, 2010, 58(12):3732-3741. http://www.juestc.uestc.edu.cn/EN/abstract/abstract1579.shtml |
[9]
|
ZHAO Ping, WU Ke-li. An iterative and analytical approach to optimal synthesis of a multiplexer with a star-junction[J]. IEEE Trans on Microwave Theory and Techniques, 2014, 62(12):3362-3369. doi: 10.1109/TMTT.2014.2364222 |
[10]
|
TANG C W, CHEN M G. Packaged microstrip triplexer with star-junction topology[J]. Electronics Letters, 2012, 48(12):699-701. doi: 10.1049/el.2012.0469 |
[11]
|
HONG Jia-sheng, LANCASTER M J. Microstrip filters for RF/microwave applications[M]. New York:Wiley, 2001. |
[12]
|
AMARI S. Synthesis of cross-coupled resonator filters using an analytical gradient-based optimization technique[J]. IEEE Trans on Microwave Theory and Techniques, 2000, 48(9):1559-1564. doi: 10.1109/22.869008 |
[13]
|
WANG Rui, PENG Long, LI Le-zhong. Diagnosis of lossy resonator filters with source-load coupling using Y-parameters[J]. International Journal of RF and Microwave Computer-Aided Engineering, 2014, 24(6):713-717. doi: 10.1002/mmce.v24.6 |
[14]
|
WANG Rui, PENG Long, LI Le-zhong. Improved diagnosis of lossy resonator bandpass filters using Y-parameters[J]. International Journal of RF and Microwave Computer-Aided Engineering, 2015, 25(9):807-814. doi: 10.1002/mmce.v25.9 |
-
-
Proportional views
-