The 40GHz band duplexer with E-plane planar circuit

IEICE Electronics Express

Nguyen Thanh¹  Toshihisa Kamei¹  Yozo Utsumi¹ 

[1] Department of Communications Engineering, National Defense Academy

关键词: E-plane planar circuit;    inductive strip;    band pass filter;    duplexer;   

DOI  :  10.1587/elex.4.549

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(4)We report on the design and construction of a prototype band pass filter using inductive-strips (E-plane planar circuits) based on electromagnetic-field simulations. We also report on the construction and characteristics of a prototype duplexer consisting of two band-pass filters-one each for the uplink and downlink-and a Y-shaped branch circuit. As a result of the experiment of duplexer, an insertion loss of about 3.1dB in a bandwidth of 195MHz for the uplink filter and an out-of-band attenuation of 50dB at 41.47GHz could be achieved. And an insertion loss of about 3.0dB in a bandwidth of 763MHz for the downlink filter and an out-of-band attenuation for the downlink filter of 59dB at 42.09GHz could be achieved.

【 授权许可】

Unknown