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�������պ����ѧѧ�� 2006, Vol. 32 Issue (04) :412-416    DOI:
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Application of periodical structure in millimeter waveguide coaxial connecter
Zhou Yan, Su Donglin*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ ����ͬ��ת����������΢�������ײ�ͨ�źͲ����зdz���Ҫ������.����PBG(Photonic Band-Gap)�ͽ����迹�任�ṹ�ڵ���ϵͳ�жԵ�Ų��������ܵ�Ӱ��,̽�ֺ��о��˽���2�������ԽṹӦ����8?mm����ͬ��ת��������������е����,ͨ����ͬ��ǻ�ڵ������֧�ŵ��в��ö�άPBG�ṹ����ͬ�Ჿ�ֺ�����ɢ�ĵ�Ų�,ͨ���ڲ���ǻ�������ӽ����迹�ṹ,�����迹�任Ч��,��߲���ͬ��ת�������Ĵ�������.�����ʵ��֤��������PBG/�����迹�任�ṹ�ں��ײ�����ͬ�Შ��ת�����Ӧ���е���Ч��,������ϵͳ�����ܼ��ȶ���,�ڲ�����ͨ���ĵ�г���������,�ڽϿ��Ƶ����Χ����Ч������פ����.
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Abstract�� Waveguide coaxial connecter has been playing a very important role in microwave & millimeter-wave communications and tests. On the basis of the effects of PBG(photonic band-gap) structure and step impedance conversion structure in transmitting electromagnetic wave system, a novel waveguide coaxial connecter for 8mm has been discussed and studied based on above two structures, the 2D air column structure in dielectric support cushion depress the dissipation of electromagnetic wave in coaxial structure, at the same time, the step impedance conversion structure improve the performance of waveguide to coaxial port, these two conversion structures in designing of 8?mm waveguide coaxial connecter. Simulations and measurement accuracy proved that this structure has the capability of improving the communication performance of millimeter waveguide coaxial connecter and reducing VSWR(voltage standing wave ratio) at a very wide frequency band without additional components used for tuning.
Keywords�� photonic band gap   step impedance conversion   waveguide coaxial connecter   millimeter waves     
Received 2005-03-22;
Fund:

����װ��Ԥ�л�����Ŀ(51410050203HK0161); �����Ƽ��ص�ʵ���һ���������Ŀ(51437030105HK010)

About author: �� ��(1974-),��,�ӱ�ʯ��ׯ��,��ʿ��,zhy2004bj@ee.buaa.edu.cn.
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����, �ն���.�����Խṹ�ں��ײ�����ͬ��ת����Ӧ��[J]  �������պ����ѧѧ��, 2006,V32(04): 412-416
Zhou Yan, Su Donglin.Application of periodical structure in millimeter waveguide coaxial connecter[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(04): 412-416
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2006/V32/I04/412
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